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Journal articles on the topic 'Confinement loss'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Sakai, Jun-ichi, and Norihiro Nishida. "Confinement loss, including cladding material loss effects, in Bragg fibers." Journal of the Optical Society of America B 28, no. 3 (2011): 379. http://dx.doi.org/10.1364/josab.28.000379.

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2

Teng, Da, Yuanming Tian, Xuemei Hu, et al. "Sodium-Based Cylindrical Plasmonic Waveguides in the Near-Infrared." Nanomaterials 12, no. 12 (2022): 1950. http://dx.doi.org/10.3390/nano12121950.

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Subwavelength optical field confinement and low-loss propagation are of great significance for compact photonic integration. However, the field confinement capability of plasmonic devices is always accompanied by the inherent Ohmic loss. Although recent studies have shown that sodium (Na) exhibits lower loss than noble metals in the near-infrared band, the field confinement ability has not been adequately assessed. Meanwhile, the high chemical reactivity of Na should be regulated for practical application. Two dielectric-coated Na nanowires, consisting of cylindrical Na nanowires with one or t

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3

Sun, Tianran, Xinyang Su, Fanchao Meng та ін. "Design of 2 μm Low-Loss Hollow-Core Anti-Resonant Fibers". Micromachines 14, № 6 (2023): 1198. http://dx.doi.org/10.3390/mi14061198.

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We systematically studied several of the most traditional hollow-core anti-resonant fiber (HC-ARF) structures, with the aim of achieving low confinement loss, single-mode performance, and high insensitivity to bending in the 2 µm band. Moreover, the propagation loss of fundamental mode (FM), higher-order mode (HOMs), and the higher-order mode extinction ratio (HOMER) under different geometric parameters were studied. Analysis showed that the confinement loss of the six-tube nodeless hollow-core anti-resonant fiber at 2 µm was 0.042 dB/km, and its higher-order mode extinction ratio was higher t

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4

Khurgin, Jacob B. "Ultimate limit of field confinement by surface plasmon polaritons." Faraday Discussions 178 (2015): 109–22. http://dx.doi.org/10.1039/c4fd00193a.

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We show that electric field confinement in surface plasmon polaritons propagating at metal/dielectric interfaces enhances the loss due to Landau damping, which effectively limits the degree of confinement itself. We prove that Landau damping, and associated with it surface collision damping, follow directly from the Lindhard formula for the dielectric constant of a free electron gas. Furthermore, we demonstrate that even if all of the conventional loss mechanisms, caused by phonons, electron–electron interactions, and interface roughness scattering, were eliminated, the maximum attainable degr

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5

Xu, Ding Jie, Hong Ru Song, and Wei Wang. "Analysis of Transmission Characteristic in Single Polarization Dual Elliptical Assistant Holes Hollow Fiber." Applied Mechanics and Materials 475-476 (December 2013): 1359–62. http://dx.doi.org/10.4028/www.scientific.net/amm.475-476.1359.

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To improve the propagation quality in photonic crystal fibers,a novel dual elliptical assistant holes hollow fiber is proposed. Numerical model of confinement loss has been modeled by vector finite element method, then the core loss characteristics and the power ratio of the hollow fiber has been simulated and analyzed. The results show that the x-polarization confinement loss and the core power ratio are 0.06dB/m and 98.2% at 1550nm, respectively. By contrast, the y-polarization confinement loss is up to 243.34dB/m while the core power ratio is 47.86%. The novel optical fiber exhibits good si

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6

Ghoroku, Kazuo, and Kouki Kubo. "Accelerated quarks and energy loss in confinement theory." International Journal of Modern Physics A 31, no. 18 (2016): 1650103. http://dx.doi.org/10.1142/s0217751x16501037.

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We study the energy loss rate (ELR) of the accelerated quark in terms of the holographic models for the two different motions, linear acceleration and uniform rotation. They are examined by two different nonconformal models with confinement. We found in both models that the value of ELR is bounded from below by the string tension of the linear confinement potential between quark and antiquark. The lower bounds of ELR are independent of the types of the motion of the quark. They are determined by the string tension at the worldsheet horizon of the model. These results are obtained when the mode

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7

Yi, Ni, An Liang, Xie Yuejian, Zhang Lei, and Peng Jiangde. "Confinement loss in solid-core photonic bandgap fibers." Optics Communications 235, no. 4-6 (2004): 305–10. http://dx.doi.org/10.1016/j.optcom.2004.02.072.

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8

Monfared, Yashar E., A. R. Maleki Javan, and A. R. Monajati Kashani. "Confinement loss in hexagonal lattice photonic crystal fibers." Optik 124, no. 24 (2013): 7049–52. http://dx.doi.org/10.1016/j.ijleo.2013.05.168.

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9

Kuhlmey, Boris T., Hong C. Nguyen, M. J. Steel, and Benjamin J. Eggleton. "Confinement loss in adiabatic photonic crystal fiber tapers." Journal of the Optical Society of America B 23, no. 9 (2006): 1965. http://dx.doi.org/10.1364/josab.23.001965.

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10

Hossain, M. B., K. A. J. Alsalem, K. Ahmed, F. M. Bui, S. M. Ibrahim, and S. K. Patel. "Terahertz detection of chemicals through zeonex fiber material." Digest Journal of Nanomaterials and Biostructures 18, no. 2 (2023): 511–22. http://dx.doi.org/10.15251/djnb.2023.182.511.

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A PCF sensor is proposed for chemical (e.g., glycerol, acetic acid, and water) sensing through Zeonex fiber material. We investigate relative sensitivity, effective are, effective material loss, and confinement loss to analyze the sensor performance. The proposed sensor offers the relative sensitivity of almost 97.7% for glycerol, 96.25% for acetic acid, 95.28% for water at frequency 3.5 THz. In addition, the sensor possesses small effective material loss and tiny confinement loss that are important characteristics of an efficient chemical sensor. Furthermore, the modern fabrication techniques

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11

Pourfathi Fard, Abdolreza, Somayeh Makouei, Morad Danishvar, and Sebelan Danishvar. "The Design of a Photonic Crystal Fiber for Hydrogen Cyanide Gas Detection." Photonics 11, no. 2 (2024): 178. http://dx.doi.org/10.3390/photonics11020178.

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Hydrogen cyanide gas is a dangerous and fatal gas that is one of the causes of air pollution in the environment. A small percentage of this gas causes poisoning and eventually death. In this paper, a new PCF is designed that offers high sensitivity and low confinement loss in the absorption wavelength of hydrogen cyanide gas. The proposed structure consists of circular layers that are located around the core, which is also composed of circular microstructures. The finite element method (FEM) is used to simulate the results. According to the results, the PCF gives a high relative sensitivity of

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12

Yuan, Ziwei, Yi Wang, Dexian Yan, et al. "Study on the high birefringence and low confinement loss terahertz fiber based on the combination of double negative curvature and nested claddings." Journal of Physics D: Applied Physics 55, no. 11 (2021): 115106. http://dx.doi.org/10.1088/1361-6463/ac4136.

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Abstract A novel double negative curvature nested fiber structure is designed by adding extra circular cladding tubes to enhance the birefringence and reduce the confinement loss. The fiber structure is composed of eight circular cladding tubes and two semi-elliptical nested tubes. The transmission performances of terahertz fiber, including birefringence, confinement loss, dispersion and effective mode field area, are studied by changing the parameters of cladding tubes. In the frequency range of 1.75–2.6 THz, the broad bandwidth of 850 GHz with high birefringence (above 10−4) can be achieved.

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13

Wang, Wei, and David Bird. "Confinement loss of anti-resonant capillaries with curved boundaries." Optics Express 29, no. 16 (2021): 25314. http://dx.doi.org/10.1364/oe.433189.

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14

Lorenzini, R., F. Auriemma, P. Innocente, E. Martines, S. Martini, and D. Terranova. "Confinement loss during dynamo relaxation event in RFX-mod." Plasma Physics and Controlled Fusion 50, no. 3 (2008): 035004. http://dx.doi.org/10.1088/0741-3335/50/3/035004.

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15

Chen, Daru, and Linfang Shen. "Ultrahigh Birefringent Photonic Crystal Fiber With Ultralow Confinement Loss." IEEE Photonics Technology Letters 19, no. 4 (2007): 185–87. http://dx.doi.org/10.1109/lpt.2006.890040.

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16

Cheng, Tonglei, Meisong Liao, Weiqing Gao, Zhongchao Duan, Takenobu Suzuki, and Yasutake Ohishi. "Low confinement loss hybrid-guiding tellurite photonic bandgap fiber." Optical Fiber Technology 18, no. 6 (2012): 498–501. http://dx.doi.org/10.1016/j.yofte.2012.07.017.

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17

Foroni, M., D. Passaro, F. Poli, et al. "Confinement loss spectral behavior in hollow-core Bragg fibers." Optics Letters 32, no. 21 (2007): 3164. http://dx.doi.org/10.1364/ol.32.003164.

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18

Khalid, M., I. Arshad, and M. Zafarullah. "DESIGN AND SIMULATION OF PHOTONIC CRYSTAL FIBERS TO EVALUATE DISPERSION AND CONFINEMENT LOSS FOR WAVELENGTH DIVISION MULTIPLEXING SYSTEMS." Nucleus 51, no. 2 (2014): 249–58. https://doi.org/10.71330/thenucleus.2014.711.

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Photonic Crystal Fiber (PCF) is the innovative and vital advancement in the field of optical communication. Research is being carried out in this field to study the transmission properties of PCF and how these properties can be improved to get the most optimum design. In this paper, two different categories of PCF are used (i) single solid-core PCF and (ii) multi solid-core PCF. We evaluated the confinement loss and dispersion properties for different designs of PCF to find an appropriate design for effective propagation of light in wavelength division multiplexing (WDM) systems. For WDM syste

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19

Le, Van Hieu. "Dispersion management in organic liquid-cladding photonic crystal fiber based on GeSe2–As2Se3–PbSe chalcogenide." Communications in Physics 35, no. 1 (2025): 87. https://doi.org/10.15625/0868-3166/22079.

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We present a numerical study of the influence of the liquids on fiber properties. The PCF was proposed based on the GeSe2–As2Se3–PbSe chalcogenide, infiltrated with six organic liquids in air holes in the cladding. The guiding properties in terms of dispersion characteristics, mode area, nonlinear coefficient, and confinement loss of the fundamental mode were numerically investigated. The result is that it is possible to shift the wavelength of the zero dispersion by about 20 nm to longer wavelengths and to reduce the slope of the dispersion curve of the fiber by the liquid filling. The result

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20

Butler, H. Daniel, Benjamin Steiner, Matthew D. Makarios, and Lawrence F. Travis. "An Examination of the Influence of Exposure to Disciplinary Segregation on Recidivism." Crime & Delinquency 66, no. 4 (2019): 485–512. http://dx.doi.org/10.1177/0011128719869194.

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Inmates who violate prison rules and regulations may be confined in disciplinary segregation as a punishment, which includes a loss of privileges and reduced opportunities to socialize and participate in prison programming. Few studies have explored the relationship between confinement in disciplinary segregation and recidivism. In this study, data collected from offenders released to postrelease supervision in Ohio are used to examine how various types of exposure to confinement in disciplinary segregation influence the odds of recidivism. In addition, confinement in disciplinary segregation

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21

Gowre, Sanjaykumar, Sudipta Mahapatra, and P. K. Sahu. "A Modified Structure for All-Glass Photonic Bandgap Fibers: Dispersion Characteristics and Confinement Loss Analysis." ISRN Optics 2013 (September 22, 2013): 1–5. http://dx.doi.org/10.1155/2013/416537.

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This paper investigates a modified structure for all-glass photonic bandgap fiber (AGPBF) having up-doped silica rods in the cladding region instead of air holes using plane wave expansion (PWE) and finite difference time domain (FDTD) methods. The proposed AGPBF structure exhibits tunable dispersion properties and improved confinement loss. It is observed that the confinement loss can be reduced simply by using a higher doping concentration in silica rods in the cladding. Also, it is possible to achieve flattened dispersion of the order of 1 ps/nm/km over a wide wavelength range.

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22

García, Inmaculada Jimeno, and Anne Marie Garvey. "Economic and Social Interactions in Business Students during COVID-19 Confinement: Relationship with Sleep Disturbance." Behavioral Sciences 12, no. 4 (2022): 100. http://dx.doi.org/10.3390/bs12040100.

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The objective of the study was to observe the effect of sleep on students in the first week (Point 1) of strict confinement and to analyze its evolution after one and two months (Point 2) of strict confinement during COVID-19. The evolution of sleep, in association with affected income status, family relations, and the death or infection of a family member or friend by COVID-19 was examined. Students responded to a survey that included questions relating to sleep quality and general well-being from the European Quality of Life Survey (EQLS). Sleep disturbance increased over strict confinement

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23

Du, Yuhang, Dinghao Zhou, Ruizhe Zhang, Jingkai Zhou, and Hui Zou. "Anti-Resonant Hollow-Core Fibers with High Birefringence and Low Loss for Terahertz Propagation." Electronics 13, no. 12 (2024): 2382. http://dx.doi.org/10.3390/electronics13122382.

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A new type of anti-resonant hollow-core fiber for terahertz waveguides is proposed. By introducing central support pillars and an elliptical structure, the fiber achieves high birefringence while maintaining low confinement loss and low material absorption loss. The fiber structure is optimized through simulation using the finite element method. The optimized fiber exhibits a birefringence of up to 1.22 × 10−2 at a frequency of 1 THz, with a confinement loss of 8.34 × 10−6 dB/cm and a material absorption loss of 7.17 × 10−3 dB/cm. Furthermore, when the bending radius of the fiber is greater th

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24

Xu, Litu, Fang Li, Lai Wei, Jianxin Zhou, and Shuai Liu. "Design of Surface Plasmon Nanolaser Based on MoS2." Applied Sciences 8, no. 11 (2018): 2110. http://dx.doi.org/10.3390/app8112110.

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The paper has proposed a new structure based on MoS2. The electric field distribution, the locality and the loss of the mode, and the threshold under different geometric shapes and parameters are investigated using COMSOL Multiphysics software, based on the finite element method. The different influenced degree of each component is also analyzed. Simulation results reveal that this kind of nanolaser has a low loss and high field confinement ability, the radius of CdS and Ag make a major contribution to the low loss and low threshold, and field confinement ability is mainly affected by the heig

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25

Rumpa, Ramin Chapa. "Ultra-High Birefringence Property and Low Confinement Loss of Circular Photonic Crystal Fiber for Telecommunication Application." International Journal for Research in Applied Science and Engineering Technology 12, no. 3 (2024): 3366–81. http://dx.doi.org/10.22214/ijraset.2024.58219.

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Abstract: A redesigned PCF structure with minimal confinement loss and high birefringence is proposed in this research paper. It employs a circular lattice arrangement with one ring of identical air holes. High birefringence and low confinement loss are two of the properties that have been numerically studied using the finite element method with circular perfectly matched layer boundary conditions. By adjusting the hole size and spacing, it is possible to achieve both properties simultaneously. At an excitation wavelength of 1550 nm, a numerically obtained modal birefringence of 2.3179×10-2 is

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26

Tobon, Monica. "Separation, Loss, Confinement, and Change: How Evagrius Can Speak to the Experience of Lockdown." Vox Patrum 82 (June 15, 2022): 89–112. http://dx.doi.org/10.31743/vp.13460.

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Separation, loss, confinement, and change have been imposed on entire populations during the Covid-19 pandemic in the form of lockdowns aimed at limiting the spread of the virus. They are also central to Evagrian asceticism, where they establish the conditions for the change at which the monastic life aims, namely to begin to reverse the effects of the fall by restoring the soul to health. This paper examines how they do so in order to gain an understanding of their ascetic function. Following the Introduction, it outlines Evagrius’ anthropology in order to lay the groundwork for its main them

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27

Biswas, Shovasis Kumar. "DESIGN OF HEXAGONAL PHOTONIC CRYSTAL FIBER WITH ULTRA-HIGH BIREFRINGENT AND LARGE NEGATIVE DISPERSION COEFFICIENT FOR THE APPLICATION OF BROADBAND FIBER." International Journal of Engineering Science Technologies 2, no. 1 (2019): 9–16. http://dx.doi.org/10.29121/ijoest.v2.i1.2017.02.

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The purpose of this paper is to design a hexagonal microstructure photonic crystal fiber (PCF) which gives ultra-high birefringence and very low confinement loss for sensing application. To characterize the modal properties of the proposed photonic crystal fiber, finite element method is used. We found ultra-high birefringence of 3.34×10-2 at operating wavelength 1550nm by using simulation software comsol multiphysics. Our proposed PCF gives large value of nonlinear coefficient of 63.51 W-1km-1, large value of negative dispersion coefficient of -566.6 ps/ (nm.km), and also ultra-low confinemen

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28

Maidi, Abdul Mu’iz, Md Abul Kalam, and Feroza Begum. "Photonic Crystal Fiber Sensor for Detecting Sulfuric Acid in Different Concentrations." Photonics 9, no. 12 (2022): 958. http://dx.doi.org/10.3390/photonics9120958.

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A high-performance photonic crystal fiber sensor for sulfuric acid detection is designed and investigated, undertaken through a full vector Finite Element Method on COMSOL Multiphysics software to establish the optical properties of effective refractive index, power fraction, relative sensitivity, confinement loss, chromatic dispersion, and propagation constant. Different aqueous sulfuric acid concentrations of 0%, 10%, 20%, 30%, and 40% were selected as the test analytes. The dimensions of two cladding rings of the hexagon- and circular-shaped air holes and a circular core hole denoted outsta

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29

Zheng, Hong Jun, Chong Qing Wu, Zhi Wang, Jian Wang, Shan Liang Liu, and Xin Li. "A Single-Polarization Single-Mode Photonic Crystal Fiber with Four Lines of Small Elliptical Air-Holes." Advanced Materials Research 301-303 (July 2011): 50–54. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.50.

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We present a novel single-polarization single-mode photonic crystal fiber (SPSM-PCF) design with four lines of small elliptical air-holes in order to obtain wider bandwidth for SPSM operation. The characteristics of the proposed SPSM-PCF are studied by using a full-vector finite element method (FEM) with perfect matched layer (PML) boundary conditions. At the wavelength of 1.55 µm, the confinement loss of the x-polarized mode is lower than 0.5 dB/km, whereas the loss of the y-polarized mode is larger than 50 dB/km. Compared with the case of x-polarized mode, the y-polarized mode can be suppres

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30

Doughan, Isaac, Kehinde Oyemakinwa, Olli Ovaskainen, and Matthieu Roussey. "Low Loss Vertical TiO2/Polymer Hybrid Nano-Waveguides." Nanomaterials 13, no. 3 (2023): 469. http://dx.doi.org/10.3390/nano13030469.

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This article proposes a novel demonstration of a low-loss polymer channel hybridized with a titania core leading to a nano-waveguide elongated in the normal direction to the substrate. It is aimed at using the quasi-transverse magnetic (TM) mode as the predominant mode in compact photonic circuitry. A detailed design analysis shows how a thin layer of a higher-refractive index material in a trench within the core of the waveguide can increase the confinement and reduce the propagation losses. This thin layer, produced by atomic layer deposition, covers the entire polymer structure in a conform

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31

R., Manojguru, and Ravindranath Chandra R. "EXPERIMENTAL STUDY ON HIGH TEMPERATURE MESH CONFINED CONCRETE." International Journal of Engineering Research and Modern Education Special Issue, April 2017 (2017): 242–47. https://doi.org/10.5281/zenodo.579566.

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This paper presents a fire accidents are happening in most of the buildings which causes heavy damage to the buildings and result in loss of durability. In order to avoid the consequences an experimental investigation is carried out using mesh confinement concrete. Concrete is a non-combustible material and has a slow rate of heat transfer. High temperature can cause the formation of cracks. These cracks resembles like any other cracks propagation may eventually cause loss of structural collapse and shorting of span life. One mighty problem which occurs when concrete is exposed to fire is spal

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32

Zendehnam, Akbar, Mahmoud Mirzaei, and Razieh Solgi. "Confinement Loss and GVD for HF and AHAOF by FEM." International Journal of Optics and Applications 2, no. 4 (2012): 34–37. http://dx.doi.org/10.5923/j.optics.20120204.01.

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33

Liang, Wenbin, Ningliang Liu, Zhihua Li, and Peixiang Lu. "Highly Birefringent Elliptical-Hole Microstructure Fibers With Low Confinement Loss." Journal of Lightwave Technology 30, no. 21 (2012): 3381–86. http://dx.doi.org/10.1109/jlt.2012.2217314.

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34

Pogossian, S. P., L. Vescan, and A. Vonsovici. "High-confinement SiGe low-loss waveguides for Si-based optoelectronics." Applied Physics Letters 75, no. 10 (1999): 1440–42. http://dx.doi.org/10.1063/1.124719.

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35

Hao, Rui, Zhiquan Li, Guifang Sun, Liyong Niu, and Yuchao Sun. "Photonic crystal fiber with high birefringence and low confinement loss." Optik 124, no. 21 (2013): 4880–83. http://dx.doi.org/10.1016/j.ijleo.2013.02.033.

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36

Dominguez-Espinosa, Alejandra del Carmen, and Johnny R. J. Fontaine. "It Is Not the Virus Exposure: Differentiating Job Demands and Resources That Account for Distress during the COVID-19 Pandemic among Health Sector Workers." International Journal of Environmental Research and Public Health 20, no. 2 (2023): 1212. http://dx.doi.org/10.3390/ijerph20021212.

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A cross-sectional study of 3860 health-sector workers across two data collections was conducted to identify the predictive power of different job demands and job resources during the COVID-19 pandemic based on four indicators of distress (COVID-19 traumatic stress, burnout, generalised anxiety, and depression) among health-sector workers. Exploratory and confirmatory factor analyses, measurement invariance checks, and structural equation models were used to evaluate the dimensionality and the effect of the job demands and resources on distress indictors. The identified job demands were workloa

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37

Luo, Weixuan, Bin Zhang, Anping Xiao, et al. "All-Solid Single-Polarization Anti-Resonant Fiber Base on Anisotropic Glass." Photonics 10, no. 4 (2023): 412. http://dx.doi.org/10.3390/photonics10040412.

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A single-polarization solid-core anti-resonant fiber is proposed, and the influence of the fiber core material anisotropy of the solid-core anti-resonant fiber on polarization characteristics is investigated using the finite element method. Single-polarization guidance is achieved by using the anisotropy of optical fiber materials, which also ensures high birefringence. The numerical simulation results indicate that there are two single-polarization intervals (1210–1440 nm and 1490–1560 nm), with a maximum bandwidth of up to 230 nm, when the confinement loss difference between the two orthogon

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38

Gallman, Antonia E., Finn D. Wolfreys, David N. Nguyen, et al. "Abcc1 and Ggt5 support lymphocyte guidance through export and catabolism of S-geranylgeranyl-l-glutathione." Science Immunology 6, no. 60 (2021): eabg1101. http://dx.doi.org/10.1126/sciimmunol.abg1101.

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P2RY8 promotes the confinement and growth regulation of germinal center (GC) B cells, and loss of human P2RY8 is associated with B cell lymphomagenesis. The metabolite S-geranylgeranyl-l-glutathione (GGG) is a P2RY8 ligand. The mechanisms controlling GGG distribution are poorly understood. Here, we show that gamma-glutamyltransferase-5 (Ggt5) expression in stromal cells was required for GGG catabolism and confinement of P2RY8-expressing cells to GCs. We identified the ATP-binding cassette subfamily C member 1 (Abcc1) as a GGG transporter and showed that Abcc1 expression by hematopoietic cells

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39

Medeiros, Ertha Janine Lacerda de, Francisco Harley de Oliveira Mendonça, Rita de Cássia Ramos do Egypto Queiroga, and Marta Suely Madruga. "Meat quality characteristics of exotic and SPRD crossbred goats from the semiarid region." Food Science and Technology 32, no. 4 (2012): 768–74. http://dx.doi.org/10.1590/s0101-20612012005000102.

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Thirty-two intact male goats from four genetic groups (eight pure-bred Boers, eight ¾ Boer + ¼ SPRD crossbreeds, eight ½ Boer + ½ SPRD crossbreeds, and eight ½ Anglo Nubian + ½ SPRD crossbreeds) were evaluated for meat quality. The goats were reared in confinement and slaughtered at the average live weight of 29 kg. Temperature and pH decrease in the longissimus dorsi muscle was determined for 24 hours, and analyses of colour, cooking loss, water-holding capacity, and sensory attributes were also performed. Genotype significantly (P < 0.05) influenced the confinement period; ½ Boer + ½ SPRD

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40

S., M. Rakibul Islam, Monirul Islam Md., Nafiz Ahbabur Rahman Md., Mahmudul Alam Mia Mohammad, Shahrier Hakim Md, and Kumar Biswas Shovasis. "DESIGN OF HEXAGONAL PHOTONIC CRYSTAL FIBER WITH ULTRA-HIGH BIREFRINGENT AND LARGE NEGATIVE DISPERSION COEFFICIENT FOR THE APPLICATION OF BROADBAND FIBER." International Journal of Engineering Science Technologies 2, no. 1 (2017): 9–16. https://doi.org/10.5281/zenodo.1036615.

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The purpose of this paper is to design a hexagonal microstructure photonic crystal fiber (PCF) which gives ultra-high birefringence and very low confinement loss for sensing application. To characterize the modal properties of the proposed photonic crystal fiber, finite element method is used. We found ultra-high birefringence of 3.34×10-<sup>2 </sup>at operating wavelength 1550nm by using simulation software comsol multiphysics. Our proposed PCF gives large value of nonlinear coefficient of 63.51 W-<sup>1</sup>km-<sup>1</sup>, large value of negative dispersion coefficient of -566.6 ps/ (nm.k

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41

Wang, Wang, Jin Luo, Wenhui Chen, Jun Li, Wei Xing, and Shengli Chen. "Synthesis of mesoporous Fe/N/C oxygen reduction catalysts through NaCl crystallite-confined pyrolysis of polyvinylpyrrolidone." Journal of Materials Chemistry A 4, no. 33 (2016): 12768–73. http://dx.doi.org/10.1039/c6ta05075a.

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42

Noh, Byung-Il, Salvio Reza, Cassie Hardy, et al. "Low Dielectric Medium for Hyperbolic Phonon Polariton Waveguide in van der Waals Heterostructures." Nanomaterials 14, no. 16 (2024): 1344. http://dx.doi.org/10.3390/nano14161344.

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Polar van der Waals (vdW) crystals, composed of atomic layers held together by vdW forces, can host phonon polaritons—quasiparticles arising from the interaction between photons in free-space light and lattice vibrations in polar materials. These crystals offer advantages such as easy fabrication, low Ohmic loss, and optical confinement. Recently, hexagonal boron nitride (hBN), known for having hyperbolicity in the mid-infrared range, has been used to explore multiple modes with high optical confinement. This opens possibilities for practical polaritonic nanodevices with subdiffractional resol

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Wilson Alphonse, Carlton Ranjith, and Rajesh Kannan Rajaretinam. "Habituation and Behavioural Response of Confinement-Induced Anxiety Conditions in a Zebrafish Model." Applied Biosciences 1, no. 3 (2022): 315–23. http://dx.doi.org/10.3390/applbiosci1030020.

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The zebrafish model is an emerging model for the study of the complex behavioural patterns noted in depression and neurological disorders. Confinement and memory loss are linked with cognition and mental health impairment, where confinement paradigms are assessed using other behavioural responses based on novel tanks or T tanks. Since zebrafish are exploratory animals, the impact during confinement cannot be evaluated using a novel tank or T tank. The present study investigates the response of the zebrafish to acute confinement and assesses its memory-based learning behaviour through parameter

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Liu, Zhaolun, Chunlan Zhang, and Yuwei Qu. "An All-Solid Dispersion-Compensating Photonic Crystal Fiber Based on Mode Coupling Mechanism in Dual-Concentric Core." International Journal of Optics 2020 (December 9, 2020): 1–9. http://dx.doi.org/10.1155/2020/4718054.

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An all-solid dispersion-compensating photonic crystal fiber based on mode coupling mechanism in dual-concentric core has been proposed. The mode coupling characteristics, dispersion, confinement loss of the fiber, and the influence on dispersion of some structure parameters are simulated by full-vector finite element method. By using the relationship between phase matching wavelengths and coupling strength with the change of fiber microstructure parameters, an all-solid dual-concentric-core dispersion-compensating photonic crystal fiber is presented. The structure parameters on dispersion char

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Habib, Md Ahasan. "A Refractive Index Based Micro-Structured Sensor for Blood Components Detection in Terahertz Regime." Sensor Letters 18, no. 1 (2020): 74–82. http://dx.doi.org/10.1166/sl.2020.4186.

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In this article, a hexagonal packing photonic crystal fiber based optical sensor is presented and analyzed for different blood components identification using terahertz (THz) signal. The numerical analysis of the proposed sensor is performed by using finite element method based software Comsol V5.0. The proposed fiber is investigated in terahertz frequency spectrum from 1.3 THz to 2.5 THz for higher relative sensitivity and numerical aperture as well as lower absorption loss and confinement loss for better sensing applications. The reported hollow core fiber provide better interaction of light

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FECHNER, WALTER, and P. D. MORLEY. "THE PLASMA ANVIL IN INERTIAL CONFINEMENT FUSION." International Journal of Modern Physics E 01, no. 01 (1992): 215–19. http://dx.doi.org/10.1142/s0218301392000102.

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We examine theoretically an inertial confinement fusion (ICF) target consisting of a spherical wedge embedded in a relatively nondeformable "anvil". Questions such as heat loss to the anvil, optimum wedge angle, liner and anvil materials, anvil deformations and deleterious 2-D shock effects on D-T burn and compression symmetry are discussed.

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Saveri, Puchalapalli, Susy Varughese, and Abhijit P. Deshpande. "Does viscoelasticity of biogels change with flow confinement?—A case study using plant mucilage." Journal of Rheology 69, no. 4 (2025): 507–14. https://doi.org/10.1122/8.0000994.

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Various applications in material science, nanotechnology, and biophysics necessitate the flow of materials through confined spaces or thin gaps. In these cases, the bulk characterization of the system often fails to describe the material behavior as the confinement influences the microstructural properties. However, the effect of confinement on polymer gels, which are three dimensional networks, remains largely unexplored. Employing thin gap parallel plate rheology, the deformation response of biopolymer based hydrogel networks at measuring gaps ranging from 20 to 200 μm is investigated and re

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Woo, K. M., and R. Betti. "Impact of areal-density asymmetries on the loss of confinement and ignition threshold in inertial confinement fusion capsules." Physics of Plasmas 28, no. 5 (2021): 054503. http://dx.doi.org/10.1063/5.0045317.

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Lin, Xianqing, Jian Ye, Yongli Yan, et al. "Loss compensation during subwavelength propagation of enhanced second-harmonic generation signals in a hybrid plasmonic waveguide." Materials Chemistry Frontiers 2, no. 3 (2018): 491–96. http://dx.doi.org/10.1039/c7qm00471k.

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Palummo, Maurizia, Conor Hogan, and Stefano Ossicini. "Ab initio energy loss spectra of Si and Ge nanowires." Physical Chemistry Chemical Physics 17, no. 43 (2015): 29085–89. http://dx.doi.org/10.1039/c5cp05074j.

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By means of parameter-free quantum-mechanical dielectric response calculations of thin Si and Ge nanowires we explain the presence of the low energy peaks observed in EELS-TEM experiments and predict an important nanowire diameter dependence of the volume plasmon peak due to quantum-confinement effects, which is consistent with the blue shift observed experimentally in thicker wires.

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