Results 11 to 20 of about 117,357,898 (121)

Azobenzene's Cross-Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices. [PDF]

Adv Mater
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Son H, Kwak S, Noh H, Kim M, Noh D, Chakraborty S, Lee J, Cho Y, Kim K, Eom T, Kim M, Kim J, Lee H, Lee S, Kim J, Han GGD, Wu ST, Oscurato S, Priimagi A, Saphiannikova M, Lee S.   +20 more
europepmc   +2 more sources

Differential phase tracking applied to Bragg gratings in multi-core fibre for high accuracy curvature measurement [PDF]

, 2006
High resolution quasi-static and dynamic curvature measurements are made by differential interferometric phase measurement of fibre Bragg gratings in separate cores of a multi-core fibre.
Flockhart, G M H, Kirkendall, Clay K., Clay K. Kirkendall, Cranch, G A, Flockhart, Gordon M. H., Geoffrey A. Cranch, Kirkendall, C K, Gordon M. H. Flockhart, Cranch, Geoffrey A.   +8 more
core   +4 more sources

Multiplexed holographic transmission gratings recorded in holographic polymer-dispersed liquid crystals: static and dynamic studies [PDF]

, 2005
The optimization of the experimental parameters of two multiplexed holographic transmission gratings recorded in holographic polymer-dispersed liquid crystals is investigated.
Camacho, Maria, Kaiser, Jean-Luc, Bougrenet de la Tocnaye, Jean-Louis de, Massenot, Sébastien, Chevallier, Raymond   +4 more
core   +1 more source

Volume diffraction gratings for optical telecommunications applications: design study for a spectral equalizer [PDF]

, 2004
The main characteristics required for a diffraction grating used for demultiplexing functions in spectral equalizing systems are investigated, both theoretically and experimentally.
Shigapova, N.M., Massenot, S, Shigapova, N,, Heggarty, Kevin, Skochilov, A.F, Loukina, Tatiana, Chevallier, Raymond, Skochilov, A, F, Skochilov, A,, Loukina, T, Chevallier, R, Shigapova, N, M, Massenot, Sébastien   +12 more
core   +1 more source

Mid-infrared volume phase gratings manufactured using ultrafast laser inscription [PDF]

, 2013
We report on the ultrafast laser inscription (ULI) of volume phase gratings inside gallium lanthanum sulphide (GLS) chalcogenide glass substrates. The effect of laser pulse energy and grating thickness on the dispersive properties of the gratings is ...
Thomson, Robert R, Lee, David, MacLachlan, David Guillaume, Cunningham, Colin R   +3 more
core   +1 more source

Study of the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals [PDF]

, 2004
Local and nonlocal models for the diffusion of photopolymers are applied to the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals (H-PDLCs). We retrieve the main parameters of H-PDLCs (
Kaiser, Jean-Luc, Massenot, S., Massenot, Sébastien, Renotte, Yvon, Kaiser, Jean Luc, Chevallier, Raymond   +5 more
core   +1 more source

Monomer diffusion rates in photopolymer material. Part I. Low spatial frequency holographic gratings [PDF]

, 2011
For photopolymers, knowing the rate of diffusion of the active monomer is important when modeling the material evolution during recording in order to understand and optimize their performance.
Close, Ciara E., Sheridan, J. T., J. T. Sheridan, Close, C.E., Close, C. E., C. E. Close, Gleeson, M. R., Sheridan, John T., M. R. Gleeson   +8 more
core   +1 more source

Operation of Holographic Elements with Broadband Light Sources [PDF]

, 2005
This thesis presents the theoretical and experimental investigation of volume holography operated with broadband/polychromatic light sources, i.e., in both continuous-wave (linear) and femtosecond-pulse (nonlinear) regimes.
Hsieh, Hung-Te
core   +1 more source

Photonic Nanomaterials for Wearable Health Solutions. [PDF]

Adv Mater
This review discusses the fundamentals and applications of photonic nanomaterials in wearable health technologies. It covers light‐matter interactions, synthesis, and functionalization strategies, device assembly, and sensing capabilities. Applications include skin patches and contact lenses for diagnostics and therapy. Future perspectives emphasize AI‐
Park T, Leem JW, Kim YL, Lee CH.
europepmc   +2 more sources

Thickness variation of self-processing acrylamide-based photopolymer and reflection holography [PDF]

, 2000
There are many types of holographic recording material. The acrylamide-based recording material examined here has one significant advantage: it is self-processing.
Lawrence, Justin R., O\u27Neill, Feidhlim T., O'Neill, Feidhlim T., Sheridan, John T., Sheridan, J., O\u27Neill, F., Lawrence, Justin   +6 more
core   +1 more source