Pub Date : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444434
G. Cook, A. Glushchenko, V. Reshetnyak, E. Beckel, M. Saleh, D. R. Evans
We report on the photorefractive properties of liquid crystals sandwiched between windows of cerium doped strontium barium niobate (Ce:SBN). This adaptable design has been used to create devices using pure nematic liquid crystals, ferroelectric nanoparticle doped liquid crystals, and cholesteric liquid crystals. In all these systems, modulation of the liquid crystal molecules is driven by the surface space-charge field from the inorganic windows. Owing to the large effective trap density in the Ce:SBN, high resolution gratings with two-beam coupling gain coefficients of up to 1400 cm-1 have been achieved in the Bragg regime.
{"title":"Liquid crystal inorganic hybrid photorefractives","authors":"G. Cook, A. Glushchenko, V. Reshetnyak, E. Beckel, M. Saleh, D. R. Evans","doi":"10.1109/LEOSWT.2008.4444434","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444434","url":null,"abstract":"We report on the photorefractive properties of liquid crystals sandwiched between windows of cerium doped strontium barium niobate (Ce:SBN). This adaptable design has been used to create devices using pure nematic liquid crystals, ferroelectric nanoparticle doped liquid crystals, and cholesteric liquid crystals. In all these systems, modulation of the liquid crystal molecules is driven by the surface space-charge field from the inorganic windows. Owing to the large effective trap density in the Ce:SBN, high resolution gratings with two-beam coupling gain coefficients of up to 1400 cm-1 have been achieved in the Bragg regime.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125178716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444417
L. Lucchetti, F. Simoni
We report on the possibility of observing the amazing ring pattern typical of self phase modulation (SPM) in dye doped liquid crystals with quite low impinging intensity. The rings formation is controlled by an external dc field applied perpendicular to the cell substrates.
{"title":"Self phase modulation controlled by a static electric field in dye-doped liquid crystals","authors":"L. Lucchetti, F. Simoni","doi":"10.1109/LEOSWT.2008.4444417","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444417","url":null,"abstract":"We report on the possibility of observing the amazing ring pattern typical of self phase modulation (SPM) in dye doped liquid crystals with quite low impinging intensity. The rings formation is controlled by an external dc field applied perpendicular to the cell substrates.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122415722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444439
Man Xu, H. Urbach, C. van Heesch, D. D. de Boer
By using photo-alignment films, liquid crystals can be oriented and optical birefringence can be induced. We compute the position dependent permittivity tensor that is induced by the interference of two plane waves with arbitrary angles of incidence and arbitrary polarizations. The diffraction by the thus obtained periodic anisotropic grating is studied with rigorous vectorial diffraction theory.
{"title":"Extended study on liquid crystal photoanisotropic polarization gratings beyond the small angle approximation","authors":"Man Xu, H. Urbach, C. van Heesch, D. D. de Boer","doi":"10.1109/LEOSWT.2008.4444439","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444439","url":null,"abstract":"By using photo-alignment films, liquid crystals can be oriented and optical birefringence can be induced. We compute the position dependent permittivity tensor that is induced by the interference of two plane waves with arbitrary angles of incidence and arbitrary polarizations. The diffraction by the thus obtained periodic anisotropic grating is studied with rigorous vectorial diffraction theory.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121199002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444447
F. Poletti, A. Camerlingo, P. Petropoulos, D. Richardson
We investigate dispersion control in holey fibres incorporating a highly nonlinear liquid. A liquid-core microstructured fibre with extremely high nonlinearity and flat dispersion at telecoms wavelengths is demonstrated.
{"title":"Dispersion management in highly nonlinear, carbon disulfide filled holey fibres","authors":"F. Poletti, A. Camerlingo, P. Petropoulos, D. Richardson","doi":"10.1109/LEOSWT.2008.4444447","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444447","url":null,"abstract":"We investigate dispersion control in holey fibres incorporating a highly nonlinear liquid. A liquid-core microstructured fibre with extremely high nonlinearity and flat dispersion at telecoms wavelengths is demonstrated.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126072613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444403
M. Marhic, J. Boggio
The exact solution of the two coupled differential equations governing a FWM component and its associated idler in a one-pump fiber OPA consist of a sum of exponentials. First- and second-order crosstalk terms scale like the corresponding powers of the signal power.
{"title":"Exact solutions for four-wave mixing crosstalk in one-pump fiber optical parametric amplifiers","authors":"M. Marhic, J. Boggio","doi":"10.1109/LEOSWT.2008.4444403","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444403","url":null,"abstract":"The exact solution of the two coupled differential equations governing a FWM component and its associated idler in a one-pump fiber OPA consist of a sum of exponentials. First- and second-order crosstalk terms scale like the corresponding powers of the signal power.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115920650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444471
F. Benabid
We report on the recent progress made on the understanding of the guidance mechanism in hollow-core photonic crystal fiber, on the photonic microcells and their use for coherent optics with atomic vapor and on the development of the first CW Raman gas-fiber-laser.
{"title":"Gas-phase photonic materials","authors":"F. Benabid","doi":"10.1109/LEOSWT.2008.4444471","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444471","url":null,"abstract":"We report on the recent progress made on the understanding of the guidance mechanism in hollow-core photonic crystal fiber, on the photonic microcells and their use for coherent optics with atomic vapor and on the development of the first CW Raman gas-fiber-laser.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129542582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444425
M. Peccianti, Gaetano Assanto
We review our achievements in tunable deflection of (2D+1) spatial solitons via electrically and optically induced dielectric perturbations in nematic liquid crystal.
我们回顾了在向列液晶中通过电和光诱导的介电扰动实现(2D+1)空间孤子可调偏转的研究成果。
{"title":"Spatial solitons and their deflection in liquid crystals","authors":"M. Peccianti, Gaetano Assanto","doi":"10.1109/LEOSWT.2008.4444425","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444425","url":null,"abstract":"We review our achievements in tunable deflection of (2D+1) spatial solitons via electrically and optically induced dielectric perturbations in nematic liquid crystal.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130739516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444444
J. Minelly, F. di Teodoro, C. Brooks, S. Desmoulins
Microstructuring techniques, initially developed for photonic band gap fibers are being increasingly adapted for active fiber systems due to superior design space in effective area, polarization maintenance and dispersion control.
{"title":"Micro-structured high power fiber lasers & amplifiers","authors":"J. Minelly, F. di Teodoro, C. Brooks, S. Desmoulins","doi":"10.1109/LEOSWT.2008.4444444","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444444","url":null,"abstract":"Microstructuring techniques, initially developed for photonic band gap fibers are being increasingly adapted for active fiber systems due to superior design space in effective area, polarization maintenance and dispersion control.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124541454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444372
R. Haglund, E. U. Donev, L. Feldman, D. Ferrara, R. Lopez, J. Suh, K. Tetz
Localized and propagating plasmonic effects in noble-metal nanostructures are receiving worldwide attention as potential enabling principles for optical and electro-optic devices. A critical need in plasmonic device design is a general technique for active modulation of the plasmon response. In this paper, we describe the use of a reversible, solid-solid phase transition in VO2 to modulate plasmonic response. Case studies are drawn from experiments on nano structured hole and particle arrays in which VO2 acts as a modulator by altering the local dielectric constant.
{"title":"Linear and nonlinear plasmonic effects modulated by a metalinsulator transition","authors":"R. Haglund, E. U. Donev, L. Feldman, D. Ferrara, R. Lopez, J. Suh, K. Tetz","doi":"10.1109/LEOSWT.2008.4444372","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444372","url":null,"abstract":"Localized and propagating plasmonic effects in noble-metal nanostructures are receiving worldwide attention as potential enabling principles for optical and electro-optic devices. A critical need in plasmonic device design is a general technique for active modulation of the plasmon response. In this paper, we describe the use of a reversible, solid-solid phase transition in VO2 to modulate plasmonic response. Case studies are drawn from experiments on nano structured hole and particle arrays in which VO2 acts as a modulator by altering the local dielectric constant.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133676770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-31DOI: 10.1109/LEOSWT.2008.4444466
L. Zang, M.S. Kang, G. Pearce, M. Scharrer, S. Rammler, P. Russell
We study the dispersive properties of the eigenmodes of rocking filters produced in highly birefringent photonic crystal fibers. The dispersion changes dramatically close to filter resonance. Rocking filters provide more flexibility in dispersion engineering.
{"title":"Dispersive properties of rocking filters in highly birefringent photonic crystal fiber","authors":"L. Zang, M.S. Kang, G. Pearce, M. Scharrer, S. Rammler, P. Russell","doi":"10.1109/LEOSWT.2008.4444466","DOIUrl":"https://doi.org/10.1109/LEOSWT.2008.4444466","url":null,"abstract":"We study the dispersive properties of the eigenmodes of rocking filters produced in highly birefringent photonic crystal fibers. The dispersion changes dramatically close to filter resonance. Rocking filters provide more flexibility in dispersion engineering.","PeriodicalId":114191,"journal":{"name":"2008 IEEE/LEOS Winter Topical Meeting Series","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132012457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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