Results 11 to 20 of about 15,966 (151)

Spatial Frequency Response of Epoxy-Based Volume Holographic Recording Material

Molecules, 2019
Holographic volume phase gratings are recorded in an epoxy-based, free-surface, volume holographic recording material. Light-induced gratings are formed by photo-triggered mass migration caused by component diffusion.
Tina Sabel
doaj   +1 more source

Experimental demonstration of holographic three-dimensional light shaping using a Gerchberg-Saxton algorithm [PDF]

, 2005
We use a three-dimensional Gerchberg–Saxton algorithm (Shabtay (2003) Opt. Commun. 226 33) to calculate the Fourier-space representation of physically realizable light beams with arbitrarily shaped three-dimensional intensity distributions.
Courtial, J., Whyte, G.
core   +3 more sources

Simulation and partial prototyping of an eight‐junction holographic spectrum‐splitting photovoltaic module

Energy Science & Engineering, 2019
Spectrum‐splitting photovoltaics incorporate optical elements to separate sunlight into frequency bands, which can be targeted at solar cells with bandgaps optimized for each sub‐band.
Sunita Darbe, Matthew D. Escarra, Emily C. Warmann, Harry A. Atwater   +3 more
doaj   +1 more source

Bragg polarization gratings for wide angular bandwidth and high efficiency at steep deflection angles

Scientific Reports, 2018
Optical films and surfaces using geometric phase are increasingly demonstrating unique and sometimes enhanced performance compared to traditional elements employing propagation phase.
Xiao Xiang, Jihwan Kim, Michael J. Escuti   +2 more
doaj   +1 more source

Singular value demodulation of phase-shifted holograms [PDF]

, 2015
We report on phase-shifted holographic interferogram demodulation by singular value decomposition. Numerical processing of optically-acquired interferograms over several modulation periods was performed in two steps : 1- rendering of off-axis complex ...
Atlan, Michael, Lopes, Fernando
core   +5 more sources

POLICRYPS-based electrically switchable Bragg reflector [PDF]

, 2015
The formation and characterization of a switchable volume reflective element fabricated from a polymer liquid crystal (LC) polymer slice (POLICRYPS) structure by holographic photopolymerization at high temperature (65 °C) using a photosensitive/nematic ...
Bunning, Timothy J., De Sio, Luciano, Tabiryan, Nelson   +2 more
core   +1 more source

Introduction to Holographic Superconductors [PDF]

, 2010
These lectures give an introduction to the theory of holographic superconductors. These are superconductors that have a dual gravitational description using gauge/gravity duality.
C.C. Homes, C.P. Herzog, C.P. Herzog, C.P. Herzog, D.T. Son, E. D’Hoker, E. Witten, F. Denef, F. London, G. Koutsoumbas, G.T. Horowitz, G.T. Horowitz, I. Amado, I.R. Klebanov, J. Bardeen, J. Sonner, J.G. Bednorz, J.P. Gauntlett, K. Maeda, K. Maeda, K. Peeters, K.K. Gomes, M. Ammon, M. Ammon, M. Heusler, M. Montull, M. Tinkham, M.M. Roberts, P. Basu, P. Breitenlohner, R. Gregory, S. Kachru, S. Weinberg, S.A. Hartnoll, S.A. Hartnoll, S.S. Gubser, S.S. Gubser, S.S. Gubser, S.S. Gubser, S.S. Gubser, S.S. Gubser, S.S. Gubser, T. Albash, T. Albash, T. Hertog, T.Y. Chen, V. Vinokur, V.L. Ginzburg, Y. Kamihara, Y. Kim   +49 more
core   +1 more source

Roadmap on structured light [PDF]

, 2017
Structured light refers to the generation and application of custom light fields. As the tools and technology to create and detect structured light have evolved, steadily the applications have begun to emerge.
Belmonte Molina, Aniceto, Berry, M. V., Forbes, Andrew, Pérez Torres, Juan, Rosales Guzmán, Carmelo, Rubinsztein-Dunlop, Halina   +5 more
core   +2 more sources

Holographic optical trapping

, 2005
Holographic optical tweezers use computer-generated holograms to create arbitrary three-dimensional configurations of single-beam optical traps useful for capturing, moving and transforming mesoscopic objects.
Allen, Alonzo, Arlt, Ashkin, Ashkin, Crocker, Curtis, Curtis, Dufresne, Dufresne, Gahagan, Garces-Chavez, Grier, Guo, He, He, Hughes, Jesacher, Jordan, Korda, Koss, Ladavac, Ladavac, Leach, Liesener, MacDonald, Meister, Melville, Mogensen, Neto, O'Neil, Polin, Reicherter, Reimann, Roichman, Sacks, Sasaki, Simpson, Sinclair, Soskin, Sundbeck   +40 more
core   +1 more source

Neutron optical beam splitter from holographically structured nanoparticle-polymer composites

, 2010
We report a breakthrough in the search for versatile diffractive elements for cold neutrons. Nanoparticles are spatially arranged by holographical means in a photopolymer. These grating structures show remarkably efficient diffraction of cold neutrons up
C. Pruner, C. V. Raman, H. Eckerlebe, H. Kogelnik, H. Lemmel, H. Rauch, H. Rauch, I. Drevenšek Olenik, J. Klepp, J. Kohlbrecher, M. A. Ellabban, M. Bichler, M. Fally, R. A. Rupp, R. Extermann, T. Nakamura, V. F. Sears, Y. Tomita   +17 more
core   +1 more source