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Artykuły w czasopismach na temat "Nonlinear Kerr effects"
Groot Koerkamp, M., i Theo Rasing. "Giant nonlinear Kerr effects". Journal of Magnetism and Magnetic Materials 156, nr 1-3 (kwiecień 1996): 213–14. http://dx.doi.org/10.1016/0304-8853(95)00844-6.
Pełny tekst źródłaZvezdin, A. K., i N. F. Kubrakov. "Nonlinear magneto-optical Kerr effects". Journal of Experimental and Theoretical Physics 89, nr 1 (lipiec 1999): 77–85. http://dx.doi.org/10.1134/1.558957.
Pełny tekst źródłaMagaña-Cervantes, Marco A., Richard M. De La Rue, Daniele Modotto, Costantino De Angelis, Roberto Morandotti, Stefan Linden, Jessica P. Mondia, Henry M. van Driel i J. Stewart Aitchison. "Kerr nonlinear effects in AlGaAs multimode waveguides". Applied Physics Letters 85, nr 16 (18.10.2004): 3390–92. http://dx.doi.org/10.1063/1.1807025.
Pełny tekst źródłaManosh, T. M., Muhammed Ashefas i Ramesh Babu Thayyullathil. "Effects of Kerr medium in coupled cavities on quantum state transfer". Journal of Nonlinear Optical Physics & Materials 27, nr 03 (wrzesień 2018): 1850035. http://dx.doi.org/10.1142/s0218863518500352.
Pełny tekst źródłaKumar Orappanpara Soman, Sunish. "A tutorial on fiber Kerr nonlinearity effect and its compensation in optical communication systems". Journal of Optics 23, nr 12 (22.11.2021): 123502. http://dx.doi.org/10.1088/2040-8986/ac362a.
Pełny tekst źródłaHERMANN, J. A. "SELF-FOCUSING EFFECTS AND APPLICATIONS USING THIN NONLINEAR MEDIA". Journal of Nonlinear Optical Physics & Materials 01, nr 03 (lipiec 1992): 541–61. http://dx.doi.org/10.1142/s0218199192000261.
Pełny tekst źródłaMing-Jun Li, Shenping Li i D. A. Nolan. "Nonlinear fibers for signal processing using optical Kerr effects". Journal of Lightwave Technology 23, nr 11 (listopad 2005): 3606–14. http://dx.doi.org/10.1109/jlt.2005.857768.
Pełny tekst źródłaLu, Shao-Shuai, Yong-Pan Gao, Tie-Jun Wang i Chuan Wang. "The Nonlinear Effects of a Kerr-Resonator Optomechanical System". International Journal of Theoretical Physics 57, nr 4 (9.12.2017): 957–64. http://dx.doi.org/10.1007/s10773-017-3628-8.
Pełny tekst źródłaNikolopoulos, Georgios M. "Effects of Kerr Nonlinearity in Physical Unclonable Functions". Applied Sciences 12, nr 23 (23.11.2022): 11985. http://dx.doi.org/10.3390/app122311985.
Pełny tekst źródłaKovachev, Lubomir M. "Optical vortices in dispersive nonlinear Kerr-type media". International Journal of Mathematics and Mathematical Sciences 2004, nr 18 (2004): 949–67. http://dx.doi.org/10.1155/s0161171204301018.
Pełny tekst źródłaRozprawy doktorskie na temat "Nonlinear Kerr effects"
Jukna, Vytautas. "Conical wave triggered transient spatio-temporal effects in Kerr media". Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121001_093530-53415.
Pełny tekst źródłaDisertaciją sudaro įvadas, penki pagrindiniai skyriai ir išvados. Įvade aiškinamas sudėtingas šviesos gijų formavimosi procesas. Paaiškinami fizikiniai reiškiniai, lemiantys šviesos gijų generacijos bei evoliucijos ypatybes, supažindinama su įvairiais šviesos gijų susidarymo ir sklidimo modeliais. Antrajame skyriuje nagrinėjama pradinio pluošto diametro įtaka superkontinuumo spektrui. Trečias skyrius, skirtas šviesos gijų generacijos sklaidančioje terpėje tyrimui, apima atlikto eksperimento bei sukurtos naujos skaitmeninio modeliavimo schemos pristatymą, ir, galiausiai, skaitmeninio modeliavimo ir eksperimentinių rezultatų palyginimą. Ketvirtame skyriuje nagrinėjama daugelio gijų generacija elipsiniais pluoštais. Trumpai paaiškinta kaskadinio keturbangio maišymo įtaka šviesos gijų periodiškumui. Ištirta šviesos gijų periodo priklausomybė nuo bangos intensyvumo, ir atskleista daugelio gijų generacijos dinamika. Moduliacinio nestabilumo analizė ir jos įtaka taip pat pateikiama ketvirtame skyriuje. Penktajame skyriuje nagrinėjama ekstremalių įvykių tūrinėje Kerro terpėje atsiradimas. Palyginami plataus spektro generacijos kompiuterinio modeliavimo ir eksperimento metu surinkti statistiniai duomenys. Pabaigoje pateikti pagrindiniai darbo rezultatai ir išvados.
Liu, Jingtian. "Shaping Strategies to Embrace Nonlinear Effects in Optical Fiber Communications". Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAT007.
Pełny tekst źródłaThe main impediment in long-distance communications is nonlinear interference (NLI), stemming from nonlinear effects in optical fibers. While Digital signal processing algorithms offer partial mitigation, the inherent nonlinear nature of the fiber, coupled with predominant dispersion effects, continues to challenge the increase of transmission throughputs. Addressing nonlinearity at the information source through signal modulation technology is at the heart of our research. Traditional modulation schemes, as spectral efficiency climbs, such as QAM, become increasingly susceptible to NLI while their Mean Squared Euclidean Distance (MSED) diminishes. While multi-dimensional (MD) modulation yields improved linear and partial nonlinear gains, it has not yet demonstrated tangible benefits. On the other hand, the emergence of probabilistic constellation shaping (PCS), preferred for its enhanced linear gain and compatibility with conventional modulation hardware and software, introduces additional NLI. Consequently, the design of nonlinear-tolerant PCS is emerging as a pivotal research direction. Our thesis begins with a novel MD modulation for uniformly distributed signals. Then, we propose a novel approach combining MD with PCS to examine performance variations. Delving into PCS, we investigate the enumerative sphere shaping distribution matcher (DM), initially from an MD stance, and design a DM optimized for nonlinear tolerance over shorter distances. Subsequently, we introduce a new NLI measurement technique, accounting for dispersion effects. Integrating this with the sequence selection framework of PCS, we achieve successful long-distance transmission with notable nonlinear gains
Becerra, Castro Emilio Manuel 1977. "Efeitos óticos não-lineares transversais a baixas intensidades de luz". [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/278228.
Pełny tekst źródłaTese (doutorado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin
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Resumo: Neste tese apresentamos um estudo teórico dos efeitos de coerência atómica em vapor atómico com o propósito de estudar teoricamente efeitos óticos não-lineares transversais a baixas intensidades de luz. Sob a condição da transparência induzida eletromagneticamente, um meio atómico pode desenvolver não-linearidades óticas gigantes, possibilitando a observação de efeitos óticos não-lineares a baixas intensidades. Investigamos três efeitos transversais: emissão cónica, focalização induzida e feixes de vórtices induzidos eletromagneticamente. Todos estes três efeitos têm origem na modulação de fase cruzada entre um laser de prova e um laser sinal, ambos fracos, com intensidades abaixo da intensidade de saturação das transições às quais estão acopladas. Em emissão cónica, descrevemos a formação de anéis ao redor de um feixe de prova fraco. No estudo de focalização induzida, descrevemos como que a aplicação de uma máscara de intensidade ao feixe sinal pode levar à formação de lentes GRIN no vapor atómico, induzindo à focalização do laser de prova. Por último, estudamos a conversão do feixe de prova em um feixe de vórtice ótico pela aplicação de uma máscara de intensidade espiral ao feixe sinal
Abstract: In this thesis we present theoretical study of the effects of atomic coherence in atomic vapor for the purpose of studying theoretically transverse nonlinear optical effects at low light levels. Under the conditions of electromagnetically induced transparency, an atomic medium can develop giant optical nonlinearities, allowing the observation of nonlinear optical effects to low intensities. We investigate three transverse effects: conical emission, induced focusing and electromagnetically induced vortices. All three of these effects stem from cross-phase modulation between probe and a signal laser, both weak with intensities below the saturation intensity the transitions to they coupled. In conical emission, we describe the formation of rings around a weak probe beam. In the study of induced focusing, we describe how applying an intensity mask to the signal beam can lead to the formation of GRIN lenses the atomic vapor, leading to focusing of the probe laser. Finally, we studied the conversion of the probe beam into an optical vortex beam by applying a spiral intensity mask to the signal beam
Doutorado
Física
Doutor em Ciências
Kaassamani, Shatha. "Polarization Spectroscopy of High Order Harmonic Generation in Semiconductors Orbital angular momentum from semiconductor high-order harmonics All semiconductor enhanced highharmonic generation from a single nanostructured cone". Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASP091.
Pełny tekst źródłaSince its first observation, a decade ago, high harmonic generation (HHG) in crystals has proved to be an efficient, controllable and compact source of coherent XUV radiation. In this thesis, we investigate HHG in 2D materials, particularly graphene, and in different semiconductor crystals mainly zinc oxide, silicon, gallium arsenide and magnesium oxide. We find that the laser properties, such as its intensity, polarization and ellipticity, and the crystal properties are interrelated. Moreover, we shed the light on the role of the linear and nonlinear propagation effects mainly the Kerr effect, upon laser interaction with the crystal, which can significantly influence the high harmonic generation efficiency. Although this presents major limitations, we show that in some cases it turns out to be an advantage. Finally, we demonstrate the manipulation of the harmonic radiation at the source of the emission by patterning nanostructures to confine and enhance nanojoule laser pulses, and generate harmonic beams carrying orbital angular momentum. Lastly, we successfully image a micrometer-sized sample by the coherent diffractive imaging (CDI) technique based on solid-state harmonics
Balakireva, Irina. "Nonlinear dynamics of Kerr optical frequency combs". Thesis, Besançon, 2015. http://www.theses.fr/2015BESA2043.
Pełny tekst źródłaThis thesis is dedicated to the study of the Kerr optical frequency combs in whispering gallery moderesonators, where the light can be excited by the extern pump. Due to the Kerr effect existing in theseresonators, the quasi-equidistant lines in the spectral domain are generated around the excited mode,that is the frequency comb. This thesis is devided in three chapters. The first one is dedicated to theintroduction of the Kerr comb generation and their applications.The second one presents the analysisof the Lugiato-Lefever equation used for the analytical study of the system, leading to the constructionof two bifurcation diagrams for the normal and anomalous dispersions. They are plotted for twoparameters, which can be controlled during experiments once the resonator has been fabricated,which are the pump power of the laser and its frequency detuning. These diagrams show the areas ofthe parameters for which one, two, or three solutions exist and their stability. The additional numericalsimulations show the exact type of the solution in each area (such as the bright and dark solitons,the breathers, the primary and secondary Kerr combs and chaotical regimes), finally these diagramsshow the parameters of the laser needed to be choosen for the generation of the desired solution.The third chapter is dedicated to the secondary Kerr combs, which are the additional lines generatedbetween the lines of the primary comb. They appear in the anomalous dispersion regime, when thequantity of the pump photons crosses the second-order threshold, which has been found numerically
Rasekh, Payman. "Kerr Effect at the THz Frequencies". Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/41085.
Pełny tekst źródłaSquire, Anthony. "Incoherent laser light as a probe of ultrafast nonlinear optics". Thesis, University of Essex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296168.
Pełny tekst źródłaLaban, Dane Edward. "Highly Nonlinear Optical Phenomena with Few-Cycle Light Pulses". Thesis, Griffith University, 2014. http://hdl.handle.net/10072/365337.
Pełny tekst źródłaThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Biomolecular and Physical Sciences
Science, Environment, Engineering and Technology
Full Text
Zhang, Weiya. "Effect of a thin optical Kerr medium on a Laguerre-Gaussian beam and the applications". Online access for everyone, 2006. http://www.dissertations.wsu.edu/Dissertations/Fall2006/W_Zhang_121306.pdf.
Pełny tekst źródłaBree, Carsten. "Self-compression of intense optical pulses and the filamentary regime of nonlinear optics". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2011. http://dx.doi.org/10.18452/16430.
Pełny tekst źródłaThis thesis discusses femtosecond filaments in dispersive dielectric media. In particular, the generation of intense, few-cycle optical pulses due to self-compression in noble gases is analyzed from a theoretical as well as from an experimental viewpoint, clearly isolating the physical mechanisms behind the observed pulse self-compression mechanism. To this end, numerical simulations of high-intensity femtosecond pulses propagating in noble gases were performed, and an analytical model of the processes leading to pulse self-compression was developed. Moreover, a theoretically predicted temporal self-healing property of femtosecond filaments is experimentally proven, demonstrating that few-cycle optical pulses can recover and even benefit from a temporary, non-adiabatic increase of dispersion and nonlinearity of the order of three magnitudes as experienced during the passage from a gaseous medium to a thin silica sample. Filamentation sets in at field strengths that approach the order of inner-atomic binding forces. At these extreme intensities, highly nonlinear effects such as multiphoton ionization or tunneling effects occur. Recent experimental investigations claim a prevalent contribution of a saturation of the optical Kerr effect in filamentation prior to the onset of Drude-contributions from ionization effects. This finding is currently controversially discussed in literature. In this thesis, an independent theoretical approach was pursued, estimating high-order contributions to the all-optical Kerr effect via a Kramers-Kronig transform of multiphoton absorption cross-sections. Quite surprisingly, while only based on first principles with some moderate approximations, the results of this analysis are in strong support of the recently suggested higher-order Kerr model.
Książki na temat "Nonlinear Kerr effects"
Dynamic Kerr effect: The use and limits of the Smoluchowski equation and nonlinear inertial responses. Singapore: World Scientific, 1995.
Znajdź pełny tekst źródłaSwapan, Konar, red. Introduction to non-Kerr law optical solitons. Boca Raton: Chapman & Hall/CRC, 2007.
Znajdź pełny tekst źródłaHe, Guang S. Laser Stimulated Scattering and Multiphoton Excitation. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780192895615.001.0001.
Pełny tekst źródłaGlazov, M. M. Electron & Nuclear Spin Dynamics in Semiconductor Nanostructures. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198807308.001.0001.
Pełny tekst źródłaBiswas, Anjan, i Swapan Konar. Introduction to non-Kerr Law Optical Solitons (Chapman & Hall/Crc Applied Mathematics and Nonlinear Science). Chapman & Hall/CRC, 2006.
Znajdź pełny tekst źródłaCzęści książek na temat "Nonlinear Kerr effects"
Abdullaev, F. Kh, i S. Sh Tadjimuratov. "The Action of Effects of Dissipation, Dispersion and Nonstationary Kerr Nonlinearity on the Propagation of Solitons in Resonant Media". W Nonlinear Evolution Equations and Dynamical Systems, 183–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76172-0_39.
Pełny tekst źródłaLi, Chunfei. "Optical Kerr Effect and Self-focusing". W Nonlinear Optics, 109–47. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1488-8_5.
Pełny tekst źródłaCrosignani, Bruno, Paolo Di Porto i Emanuele Caglioti. "The Optical Kerr Effect in Fibers". W Nonlinear Waves in Solid State Physics, 275–95. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-5898-5_9.
Pełny tekst źródłaRathea, U., Μ. Fleischhauer i Marlan O. Scully. "Optical nonlinearities and the Kerr-effect in phaseonium". W Frontiers in Nonlinear Optics, 17–25. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003209638-2.
Pełny tekst źródłaBrée, Carsten. "Saturation and Inversion of the All-Optical Kerr Effect". W Nonlinear Optics in the Filamentation Regime, 79–109. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-30930-4_4.
Pełny tekst źródłaDejardin, J. L., i G. Debiais. "Nonlinear Dielectric and KERR Effect Relaxation in Alternating Fields". W Advances in Chemical Physics, 241–380. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470141502.ch4.
Pełny tekst źródłaQiu, Z. Q., i S. D. Bader. "Kerr Effect and Surface Magnetism". W Nonlinear Optics in Metals, 1–3. Oxford University PressOxford, 1998. http://dx.doi.org/10.1093/oso/9780198518938.003.0001.
Pełny tekst źródłaMoeller, Lothar. "Non-Manakovian Propagation in Optical Fiber". W The Nonlinear Schrödinger Equation. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.103694.
Pełny tekst źródła"Optical Kerr effect". W Nonlinear Optics, 239–62. CRC Press, 2014. http://dx.doi.org/10.1201/b17890-15.
Pełny tekst źródłaNewnham, Robert E. "Magneto-optics". W Properties of Materials. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780198520757.003.0033.
Pełny tekst źródłaStreszczenia konferencji na temat "Nonlinear Kerr effects"
Rahman, B. M. A., Y. Liu, P. A. Buah, K. T. V. Grattan, F. A. Fernandez, R. D. Ettinger i J. B. Davies. "Accurate Finite Element Analysis of Nonlinear Optical Fibers". W Nonlinear Optics. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/nlo.1992.we11.
Pełny tekst źródłaLeshem, Amir, Zhen Qi, Thomas F. Carruthers, Curtis R. Menyuk i Omri Gat. "Thermal Instabilities, Oscillations, and Frequency Combs in Kerr Microresonators". W Nonlinear Photonics. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/np.2022.npw2f.3.
Pełny tekst źródłaFirth, W. J., i C. Penman. "Counterpropagation in Kerr Media: Combined Diffractive–Dispersive Instabilities". W Nonlinear Dynamics in Optical Systems. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/nldos.1990.stdopd142.
Pełny tekst źródłaKhoshnevisan, Monte, i Pochi Yeh. "Relationship Between Nonlinear Electrostrictive Kerr Effects And Acousto-Optics". W OE LASE'87 and EO Imaging Symp (January 1987, Los Angeles), redaktorzy Ira Abramowitz i Robert A. Fisher. SPIE, 1988. http://dx.doi.org/10.1117/12.939705.
Pełny tekst źródłaHansson, Tobias, Martino Bernard i Stefan Wabnitz. "Polarization Effects and Nonlinear Mode Coupling in Kerr Microresonators". W CLEO: QELS_Fundamental Science. Washington, D.C.: OSA, 2018. http://dx.doi.org/10.1364/cleo_qels.2018.fth1e.2.
Pełny tekst źródłaJu, H., E. C. Lee, S. K. Yang, Jisoon Ihm i Hyeonsik Cheong. "Quantum Squeezing by Optical Kerr Effects in Nonlinear Waveguides". W PHYSICS OF SEMICONDUCTORS: 30th International Conference on the Physics of Semiconductors. AIP, 2011. http://dx.doi.org/10.1063/1.3666711.
Pełny tekst źródłaGravé, Ilan, Mordechai Segev i Amnon Yariv. "Phase conjugation at 10.6 μm via intersubband third order nonlinearities in multi quantum well structures". W Nonlinear Optics. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/nlo.1992.mb4.
Pełny tekst źródłaSaffman, M., D. Montgomery, A. A. Zozulya, K. Kuroda i D. Z. Anderson. "Transverse Instability of Counterpropagating Waves in Photorefractive Media". W Photorefractive Materials, Effects, and Devices II. Washington, D.C.: Optica Publishing Group, 1993. http://dx.doi.org/10.1364/pmed.1993.frd.13.
Pełny tekst źródłaSilberberg, Y., V. L. da Silva, J. P. Heritage, E. W. Chase, M. A. Saifi i M. J. Andrejco. "Coherent Effects in Er-doped Fibers: Photon-Echo with Femtosecond Pulses". W Nonlinear Guided-Wave Phenomena. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/nlgwp.1991.tua1.
Pełny tekst źródłaKarlsson, M., D. Anderson, M. Desaix i M. Lisak. "Dynamic Effects of Kerr Nonlinearity and Spatial Diffraction on Self Phase Modulation of Optical Pulses". W Nonlinear Guided-Wave Phenomena. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/nlgwp.1991.wc7.
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