Academic literature on the topic 'Tunable optical properties'

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Journal articles on the topic "Tunable optical properties"

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Biler, Michal, Patrick Trouillas, David Biedermann, Vladimír Křen, and Martin Kubala. "Tunable optical properties of silymarin flavonolignans." Journal of Photochemistry and Photobiology A: Chemistry 328 (September 2016): 154–62. http://dx.doi.org/10.1016/j.jphotochem.2016.05.024.

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Piccone, Ashley. "Peering into the optical properties of tunable window technology." Scilight 2022, no. 34 (August 19, 2022): 341105. http://dx.doi.org/10.1063/10.0013783.

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Stefan, Mihaela, Chandima Bulumulla, Ruwan Gunawardhana, Prabhath Gamage, Ruvanthi Kularatne, and Michael Biewer. "π-Spacer-Linked Bisthienopyrroles with Tunable Optical Properties." Synlett 29, no. 19 (October 2, 2018): 2567–71. http://dx.doi.org/10.1055/s-0037-1611055.

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Thieno[3,2-b]pyrrole is an effective nonconventional semiconducting building block that could be generated in gram quantities with relatively high overall yields. Three organic semiconductors containing thieno[3,2-b]pyrrole were synthesized in good yields without requiring time-consuming column purifications. The synthesis, optical and electrochemical properties were systematically investigated.1 Introduction2 Experimental3 Synthesis and Characterization4 Theoretical Calculations5 Optical and Electrochemical Properties6 Thermal Stability7 Fluorescence Experiments8 GIXRD Data9 Conclusions
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Martins, Manuel A., Sara Fateixa, Ana V. Girão, Sérgio S. Pereira, and Tito Trindade. "Shaping Gold Nanocomposites with Tunable Optical Properties." Langmuir 26, no. 13 (July 6, 2010): 11407–12. http://dx.doi.org/10.1021/la100875j.

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Lei, Weiwei, Dan Liu, Jian Zhang, Bingbing Liu, Pinwen Zhu, Tian Cui, Qiliang Cui, and Guangtian Zou. "AlN nanostructures: tunable architectures and optical properties." Chemical Communications, no. 11 (2009): 1365. http://dx.doi.org/10.1039/b815862b.

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Shi, Yue-Wen, Min-Min Shi, Jia-Chi Huang, Hong-Zheng Chen, Mang Wang, Xiao-Dong Liu, Yu-Guang Ma, Hai Xu, and Bing Yang. "Fluorinated Alq3 derivatives with tunable optical properties." Chemical Communications, no. 18 (2006): 1941. http://dx.doi.org/10.1039/b516757d.

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Wang, Mingsheng, and Yadong Yin. "Magnetically Responsive Nanostructures with Tunable Optical Properties." Journal of the American Chemical Society 138, no. 20 (May 6, 2016): 6315–23. http://dx.doi.org/10.1021/jacs.6b02346.

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Luo, Yang, Shou-zheng Zhu, Hong Ye, Hong-wei Mao, and Chun-mei Wang. "Tunable optical properties with planar metamaterial lens." Journal of Modern Optics 62, no. 12 (March 6, 2015): 971–77. http://dx.doi.org/10.1080/09500340.2015.1015634.

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Otón, José Manuel, Manuel Caño-García, Fernando Gordo, Eva Otón, Morten Andreas Geday, and Xabier Quintana. "Liquid crystal tunable claddings for polymer integrated optical waveguides." Beilstein Journal of Nanotechnology 10 (November 5, 2019): 2163–70. http://dx.doi.org/10.3762/bjnano.10.209.

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Optical waveguides in photonic integrated circuits are traditionally passive elements merely carrying optical signals from one point to another. These elements could contribute to the integrated circuit functionality if they were modulated either by variations of the core optical properties, or by using tunable claddings. In this work, the use of liquid crystals as electro-optically active claddings for driving integrated waveguides has been explored. Tunable waveguides have been modeled and fabricated using polymers. Optical functions such as variable coupling and optical switching have been demonstrated.
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Zhang, Yang, Zhi-Feng Wu, Peng-Fei Gao, Dang-Qi Fang, Er-Hu Zhang, and Sheng-Li Zhang. "Strain-tunable electronic and optical properties of BC3monolayer." RSC Advances 8, no. 3 (2018): 1686–92. http://dx.doi.org/10.1039/c7ra10570c.

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The BC3monolayer holds great promise in the applications of nanoelectronic and optoelectronic devices due to its good structural stability, moderate and tunable band gap, and strain-controllable optical properties.
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Dissertations / Theses on the topic "Tunable optical properties"

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Liu, Yi-Wei. "Optical studies using tunable solid state lasers." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299523.

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Meerbach, Christian, Remo Tietze, Sascha Voigt, Vladimir Sayevich, Volodymyr M. Dzhagan, Steven C. Erwin, Zhiya Dang, et al. "Brightly Luminescent Core/Shell Nanoplatelets with Continuously Tunable Optical Properties Title." Wiley VCH, 2019. https://tud.qucosa.de/id/qucosa%3A34602.

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A straightforward, rapid method to create colloidally stable and brightly luminescent core/shell CdSe-based nanoplatelets (NPLs) with fluorescence quantum yields (QYs) up to 50% is demonstrated. A layer-by-layer deposition technique based on a two-phase mixture ‒ consisting of a nonpolar phase which includes the NPLs, and a saturated ionic polar phase ‒ to separate the reagents and hinder the nucleation of the shell material is used. The deposition of the first sulfur layer leads to a significant red-shift (by more than 100 nm) of the optical absorption and emission of the NPLs. Hence, by varying either the sulfur precursor content or the reaction time one can precisely and continuously tune the absorption and emission maxima from 520 to 630 nm. This evolution of the absorption onset during the shell growth is explained quantitatively using density-functional theory and atomistic statistical simulations. The emission can be further enhanced by exposure of the NPL solution to ambient sunlight. Finally, it is demonstrated that the core/shell NPLs can be transferred from the organic solution to aqueous media with no reduction of their QY that opens the door to a broad range of practical applications.
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Wang, Lingyan. "Design and fabrication of functional nanomaterials with tunable electrical, optical, and magnetic properties." Diss., Online access via UMI:, 2007.

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Kaya, Murat. "Preparation And Surface Modification Of Noble Metal Nanoparticles With Tunable Optical Properties For Sers Applications." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613129/index.pdf.

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Metal nanostructures exhibit a wide variety of interesting physical and chemical properties, which can be tailored by altering their size, morphology, composition, and environment. Gold and silver nanostructures have received considerable attention for many decades because of their widespread use in applications such as catalysis, photonics, electronics, optoelectronics, information storage, chemical and biological sensing, surface plasmon resonance and surface-enhanced Raman scattering (SERS) detection. This thesis is composed of three main parts about the synthesis, characterization and SERS applications of shape-controlled and surface modified noble metal nanoparticles. The first part is related to a simple synthesis of shape controlled solid gold, hollow gold, silver, gold-silver core-shell, hollow gold-silver double-shell nanoparticles by applying aqueous solution chemistry. Nanoparticles obtained were used for SERS detection of dye molecules like brilliant cresyl blue (BCB) and crystal violet (CV) in aqueous system. v The second part involves the synthesis of surface modified silver nanoparticles for the detection of dopamine (DA) molecules. Determination of a dopamine molecule attached to a iron-nitrilotriaceticacid modified silver (Ag-Fe(NTA)) nanoparticles by using surface-enhanced resonance Raman scattering (SERRS) was achieved. The Ag-Fe (NTA) substrate provided reproducibility and excellent sensitivity. Experimental results showed that DA was detected quickly and accurately without any pretreatment in nM levels with excellent discrimination against ascorbic acid (AA) (which was among the lowest value reported in direct SERS detection of DA). In the third part, a lanthanide series ion (Eu3+) containing silver nanoparticle was prepared for constructing a molecular recognition SERS substrate for the first time. The procedure reported herein, provides a simple way of achieving reproducible and sensitive SERS spectroscopy for organophosphates (OPP) detection. The sensing of the target species was confirmed by the appearance of an intense SERS signal of the methyl phosphonic acid (MPA), a model compound for nonvolatile organophosphate nerve agents, which bound to the surface of the Ag-Eu3+ nanostructure. The simplicity and low cost of the overall process makes this procedure a potential candidate for analytical control processes of nerve agents.
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Reifler, Ellen Sarah. "Investigation of Intrinsic and Tunable Properties of Two-Dimensional Transition-Metal Dichalcogenides for Optical Applications." Research Showcase @ CMU, 2018. http://repository.cmu.edu/dissertations/1182.

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Since the scotch-tape isolation of graphene, two-dimensional (2D) materials have been studied with increasing enthusiasm. Two-dimensional transition-metal dichalcogenides are of particular interest as atomically thin semiconductors. These materials are naturally transparent in their few-layer form, have direct band gaps in their monolayer form, exhibit extraordinary absorption, and demonstrate unique physics, making them promising for efficient and novel optical devices. Due to the two-dimensional nature of the materials, their properties are highly susceptible to the environment above and below the 2D films. It is critical to understand the influences of this environment on the properties of 2D materials and on the performance parameters of devices made with the materials. For transparent optical devices requiring electrical contacts and gates, the effect of transparent conducting oxides on the optical properties of 2D semiconductors is of particular importance. The ability to tune the optical properties of 2D transition-metal dichalcogenides could allow for improved control of the emission or absorption wavelength of optical devices made with the materials. Continuously tuning the optical properties of these materials would be advantageous for variable wavelength devices such as photodetectors or light emitters. This thesis systematically investigates the intrinsic structural and optical properties of two-dimensional transition-metal dichalcogenide films, the effect of substrate-based optical interference on the optical emission properties of the materials, and demonstrates methods to controllably tune the luminescence emission of the materials for future optical applications. This thesis advances the study of these materials toward integration in future efficient and novel optical devices. The specific transition metal dichalcogenides investigated here are molybdenum disulfide (MoS2), molybdenum diselenide (MoSe2), tungsten disulfide (WS2), and tungsten diselenide (WSe2). The thickness-dependence of the intrinsic in-plane crystal structure of these materials is elucidated with high-resolution transmission electron microscopy; thickness-dependent optical properties are studied using Raman and photoluminescence spectroscopies. This thesis investigates the optical interference effects from substrates with transparent conducting oxide layers on the optical properties of few-layer MoS2 films. An understanding of these effects is critical for integrating MoS2 into efficient optical devices. We predict contributions of optical interference effects to the luminescence emission of few-layer MoS2 films. The predictions are experimentally verified. We also demonstrate the use of optical interference effects to tune the wavelength and intensity of the luminescence emission of few-layer MoS2. This thesis explores the use of electric fields applied perpendicular to the films to continuously and reversibly tune the band gap of few-layer MoS2 for future variable wavelength devices. To facilitate integration into devices, we demonstrate electric fieldinduced band gap tuning by applying electric fields with a pair of transparent or semitransparent conducting layers, and without the need for direct electrical contact to the MoS2 films. The observed band gap tuning is attributed to the Stark Effect. We discuss challenges to maximizing the effect of electric field-induced band gap tuning. We demonstrate that optical interference effects do not prevent observation of band gap tuning via applied electric fields. We successfully combine two luminescence emission tuning methods: optical interference effects and electric field effects.
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Lombardo, Valentina. "Highly conductive polymer films with tunable optical properties obtained by in solution-doping of PEDOT:PSS." Doctoral thesis, Università di Catania, 2019. http://hdl.handle.net/10761/4127.

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PEDOT:PSS is one of the most known conductive polymers, but, despite its great popularity and numerous studies carried on it, the scientific production still shows a lack on this material. This concerns the acidic doping carried by H2SO4 by an in-solution approach. Hence, the aim of this work was to investigate the effects due to the direct acidification of PEDOT:PSS solution. This thesis thus presents a step-by-step study of this novel approach, describing the characteristics of the pristine polymer first, and of its acidified forms then. Results obtained showed a marked improvement of the electrical properties, with also a great versatility in terms of optical and tribological features, until obtaining a plastic, free-standing material with high potentiality. The mechanism behind the proposed method is described, suppling new insights and perspectives. Finally, a novel approach of the block copolymer self-assembly is also described as a use proposal of the material developed.
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Ullah, Anayat [Verfasser]. "Optimization of the Mechanical and Optical Properties of Tunable Optical Sensor Arrays (TOSA) for a Nanospectrometer in the Visible and Near Infrared Spectral Range / Anayat Ullah." Kassel : Universitätsbibliothek Kassel, 2014. http://d-nb.info/1065080360/34.

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Wittmann, Judith [Verfasser], Marcus [Akademischer Betreuer] Halik, Marcus [Gutachter] Halik, and Dirk M. [Gutachter] Guldi. "Tunable optical properties of mixed self-assembled monolayers on metal oxide nanoparticles / Judith Wittmann ; Gutachter: Marcus Halik, Dirk M. Guldi ; Betreuer: Marcus Halik." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2019. http://d-nb.info/1197304495/34.

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Kärgell, Martin [Verfasser], Thomas [Akademischer Betreuer] Unold, Andreas [Akademischer Betreuer] Taubert, Andreas [Gutachter] Taubert, Thomas [Gutachter] Unold, and Michael [Gutachter] Wark. "Layer formation from perovskite nanoparticles with tunable optical and electronic properties / Martin Kärgell ; Gutachter: Andreas Taubert, Thomas Unold, Michael Wark ; Thomas Unold, Andreas Taubert." Potsdam : Universität Potsdam, 2020. http://d-nb.info/121966295X/34.

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Kärgell, Martin [Verfasser], Thomas Akademischer Betreuer] Unold, Andreas [Akademischer Betreuer] [Taubert, Andreas Gutachter] Taubert, Thomas [Gutachter] Unold, and Michael [Gutachter] [Wark. "Layer formation from perovskite nanoparticles with tunable optical and electronic properties / Martin Kärgell ; Gutachter: Andreas Taubert, Thomas Unold, Michael Wark ; Thomas Unold, Andreas Taubert." Potsdam : Universität Potsdam, 2020. http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-475667.

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Books on the topic "Tunable optical properties"

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Patterson, James D. Micro-mechanical voltage tunable Fabry-Perot filters formed in (111) silicon. Washington, D.C: National Aeronautics and Space Administration, 1997.

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Patterson, James D. Micro-mechanical voltage tunable Fabry-Perot filters formed in (111) silicon. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1997.

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Patterson, James D. Micro-mechanical voltage tunable Fabry-Perot filters formed in (111) silicon. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1997.

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Powell, Richard C. Growth and characterization of materials for tunable lasers in the near infrared spectral region. Stillwater, OK: Dept. of Physics, Oklahoma State University, 1988.

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Powell, Richard C. Growth and characterization of materials for tunable lasers in the near infrared spectral region: Semi-annual progress report, 1 February 1988-31 July 1988. Stillwater, OK: Dept. of Physics, Oklahoma State University, 1988.

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(Editor), Samson A. Jenekhe, and Douglas J. Kiserow (Editor), eds. Chromogenic Phenomena in Polymers: Tunable Optical Properties (Acs Symposium Series). An American Chemical Society Publication, 2004.

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Li, Jing, and Xiao-Ying Huang. Nanostructured crystals: An unprecedented class of hybrid semiconductors exhibiting structure-induced quantum confinement effect and systematically tunable properties. Edited by A. V. Narlikar and Y. Y. Fu. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199533053.013.16.

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This article describes the structure-induced quantum confinement effect in nanostructured crystals, a unique class of hybrid semiconductors that incorporate organic and inorganic components into a single-crystal lattice via covalent (coordinative) bonds to form extended one-, two- and three-dimensional network structures. These structures are comprised of subnanometer-sized II-VI semiconductor segments (inorganic component) and amine molecules (organic component) arranged into perfectly ordered arrays. The article first provides an overview of II-VI and III-V semiconductors, II-VI colloidal quantum dots, inorganic-organic hybrid materials before discussing the design and synthesis of I-VI-based inorganic-organic hybrid nanostructures. It also considers the crystal structures, quantum confinement effect, bandgaps, and optical properties, thermal properties, thermal expansion behavior of nanostructured crystals.
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Book chapters on the topic "Tunable optical properties"

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Warburton, R. J., C. Schäflein, H. Pettersson, D. Haft, F. Bickel, C. S. Dürr, K. Karrai, et al. "Interband Optics of Charge-Tunable Quantum Dots." In Optical Properties of Semiconductor Nanostructures, 347–63. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4158-1_36.

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Bsiesy, A., F. Muller, M. Ligeon, F. Gaspard, R. Herino, R. Romestain, and J. C. Vial. "Voltage-Tunable Electroluminescence of Porous Silicon." In Optical Properties of Low Dimensional Silicon Structures, 139–46. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2092-0_16.

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Jing, Hao, Li Zhang, and Hui Wang. "Geometrically Tunable Optical Properties of Metal Nanoparticles." In UV-VIS and Photoluminescence Spectroscopy for Nanomaterials Characterization, 1–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-27594-4_1.

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Dürr, U., U. Brauch, W. Knierim, and C. Schiller. "Optical and Lasing Properties of Cr3+, Co2+, Ni2+ and V2+ Doped Perovskites." In Tunable Solid State Lasers, 20–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-540-39236-1_4.

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Karg, Matthias, and Thomas Hellweg. "Smart Microgel/Nanoparticle Hybrids with Tunable Optical Properties." In Hydrogel Micro and Nanoparticles, 257–79. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527646425.ch11.

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Valentini, Luca, and Nicola Pugno. "Soft Composites with Tunable Optical and Electrical Properties." In Flexible Carbon-based Electronics, 1–11. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2018. http://dx.doi.org/10.1002/9783527804894.ch1.

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Fudouzi, Hiroshi, Yu Lu, and Younan Xia. "Photonic Papers: Colloidal Crystals with Tunable Optical Properties." In ACS Symposium Series, 329–37. Washington, DC: American Chemical Society, 2004. http://dx.doi.org/10.1021/bk-2005-0888.ch025.

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Herrmann, K. H., K. P. Möllmann, J. W. Tomm, H. Böttner, A. Lambrecht, and M. Tacke. "Optical Properties of High Energy Gap Lead Salts." In Monitoring of Gaseous Pollutants by Tunable Diode Lasers, 139. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2763-9_16.

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Ozaki, Ryotaro, Masanori Ozaki, and Katsumi Yoshino. "CHAPTER 5. Optical Properties of Tunable Photonic Crystals Using Liquid Crystals." In Responsive Photonic Nanostructures, 91–118. Cambridge: Royal Society of Chemistry, 2013. http://dx.doi.org/10.1039/9781849737760-00091.

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Wei, Ming-Hsin, Chia-Hua Lee, and Wen-Chang Chen. "Tunable Near-IR Optical Properties from Trialkoxysilane-Capped Poly(methyl methacrylate)—Silica Waveguide Materials." In ACS Symposium Series, 307–19. Washington, DC: American Chemical Society, 2004. http://dx.doi.org/10.1021/bk-2005-0888.ch023.

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Conference papers on the topic "Tunable optical properties"

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Strek, Wieslaw, J. Sokolnicki, J. Legendziewicz, M. Borzechowska, and K. Maruszewski. "Optical properties of Eu 2 (CO 3 ) 3 4H 2 O entrapped in silica sol gel glass." In Tunable Solid State Lasers, edited by Wieslaw Strek, Edward Lukowiak, and Barbara Nissen-Sobocinska. SPIE, 1997. http://dx.doi.org/10.1117/12.293457.

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Wright, D., J. Zyss, G. Langer, A. Pogantsch, K. F. Iskra, and W. Kern. "Optical properties of tunable organic DFB lasers." In Frontiers in Optics. Washington, D.C.: OSA, 2003. http://dx.doi.org/10.1364/fio.2003.tuu2.

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Cong, Tao, Satvik N. Wani, Georo Zhou, Elia Baszczuk, and Radhakrishna Sureshkumar. "Plasmonic nanogels with robustly tunable optical properties." In SPIE NanoScience + Engineering. SPIE, 2011. http://dx.doi.org/10.1117/12.894070.

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Kumar, Asish, Khem B. Thapa, and Girijesh N. Pandey. "Tunable optical properties of hyperbolic meta-material." In ADVANCES IN BASIC SCIENCE (ICABS 2019). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5122368.

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Nielsen, Rasmus B., Anders Kristensen, Jørn M. Hvam, and Alexandra Boltasseva. "Metal-dielectric composites with tunable optical properties." In SPIE Photonics Europe, edited by Nigel P. Johnson, Ekmel Özbay, Richard W. Ziolkowski, and Nikolay I. Zheludev. SPIE, 2010. http://dx.doi.org/10.1117/12.855826.

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Tang, Ben Z., Jacky W. Lam, Xiangxing Kong, Fouad Salhi, Kevin K. Cheuk, HoiSing Kwok, Yuanming Huang, and Weikun Ge. "Liquid crystalline polyacetylenes with tunable luminescent properties." In International Symposium on Optical Science and Technology, edited by Iam-Choon Khoo. SPIE, 2000. http://dx.doi.org/10.1117/12.405325.

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Rout, Sangeeta, Zhen Qi, Monika M. Biener, Devon Courtwright, J. Adrien, Mohammad Shahabuddin, Carl E. Bonner, Natalia Noginova, and Mikhail A. Noginov. "Tunable optical properties of nanoporous gold leaf metamaterials." In Metamaterials, Metadevices, and Metasystems 2020, edited by Nader Engheta, Mikhail A. Noginov, and Nikolay I. Zheludev. SPIE, 2020. http://dx.doi.org/10.1117/12.2571003.

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Zhang, Xing Fang, Xin Yan, and Feng Shou Liu. "Tunable optical properties of gold semi-shell nanoparicles." In SPIE/COS Photonics Asia, edited by Zhiping Zhou and Kazumi Wada. SPIE, 2014. http://dx.doi.org/10.1117/12.2070942.

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Hong, Xin, and Chenchen Wang. "Tunable optical properties of the core-shell nanoparticles." In SPIE/COS Photonics Asia, edited by Zhiping Zhou and Kazumi Wada. SPIE, 2016. http://dx.doi.org/10.1117/12.2244490.

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Wei, Junhua, and Jenny Qiu. "Tunable Optical Properties of Graphene Quantum Dots by Centrifugation." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64756.

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In this work, tunable optical properties of graphene quantum dots (GQDs) were achieved by centrifugation method. GQDs prepared through intercalating and exfoliating commercially available stacked graphene nanofibers were separated into two samples with different mean sizes by centrifugation. The separated GQD samples were characterized by transmission electron microscope (TEM). The optical properties of the GQD samples were measured by UV-visible and photoluminescence spectroscopy. The characterization results demonstrated that the UV and photoluminescence of GQDs were highly correlated with their sizes and surface chemistry. As the diameters of GQDs reduced, the UV peaks of the GQD blue shift, and the photoluminescence of PL red shift, indicating that the centrifugation method can be used to efficiently achieve tunable optical properties from as-synthesized GQD.
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