Results 31 to 40 of about 12,678 (263)

EFFECT OF OBJECT REPRESENTATION FORM ON DEPTH RESOLUTION OF RESTORED IMAGES OBTAINED BY SYNTHESIZED FRESNEL HOLOGRAMS [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2019
Subject of the Research. The paper presents the study on the effect of object representation form on the depth resolution of images reconstructed via computer-generated Fresnel holograms-projectors. Method.
Sergey N. Koreshev, Marina A. Frolova
doaj   +1 more source

Diseño de un dispositivo compacto para generar y testear vórtices ópticos [PDF]

, 2017
Presentamos un diseño compacto para generar y testear diferentes vórtices ópticos con momento angular orbital (OAM). El diseño consiste en una máscara que contiene un holograma binario y un pinhole.
Capeluto, Maria Gabriela, Ledesma, Silvia Adriana, Pabon Riaño, Dudbil Olvasada, Quinteiro, Guillermo Federico   +3 more
core   +1 more source

Holographic colour prints for enhanced optical security by combined phase and amplitude control

Nature Communications, 2019
Here, the authors fabricate a device that integrates multiple computer-generated holograms into a single colour print. Under white light, a colour image is seen, whereas illumination with a red, green, or blue beam from a handheld laser pointer projects ...
Kevin T. P. Lim, Hailong Liu, Yejing Liu, Joel K. W. Yang   +3 more
doaj   +1 more source

A holographic system for subsea recording and analysis of plankton and other marine particles [PDF]

, 2003
We report here details of the design, development, initial testing and field-deployment of the HOLOMAR system for in-situ subsea holography and analysis of marine plankton and nonliving particles.
Alexander, S, Chalvidan, V, Craig, G, Diard, A, Foresti, GL, Gentili, S, Hendry, DC, Hobson, PR, Lampitt, RS, Nareid, H, Nebrensky, JJ, Pescetto, A, Pieroni, GG, Player, MA, Saw, K, Serpico, S, Tipping, K, Trucco, A, Watson, J   +18 more
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Influence of the ratio of the intensities of the reference and object waves on the intensity distribution in the holographic field

Научно-технический вестник информационных технологий, механики и оптики
The results of the research focused on the reference and object beam intensity ratio effect on the transmittance of computer-generated and analog holograms are presented.
S. N. Koreshev, S. O. Starovoitov
doaj   +1 more source

Reducing Defocused-Information Crosstalk to Multi-View Holography by Using Multichannel Encryption of Random Phase Distribution

Applied Sciences, 2022
A new optical encryption algorithm, called the random-phase encryption algorithm, is proposed in this study. When this algorithm was applied in constructing computer-generated holograms, the out-of-focus image crosstalk was effectively reduced, and the ...
Chih-Hao Chuang, Chien-Yu Chen, Hsuan-Ting Chang, Hoang-Yan Lin, Chuan-Feng Kuo   +4 more
doaj   +1 more source

Rapid Generation of Light Beams Carrying Orbital Angular Momentum [PDF]

, 2013
We report a technique for encoding both amplitude and phase variations onto a laser beam using a single digital micro-mirror device (DMD). Using this technique, we generate Laguerre-Gaussian and vortex orbital-angular-momentum (OAM) modes, along with ...
Boyd, Robert W., Chen, Changchen, Magana-Loaiza, Omar S., Malik, Mehul, Mirhosseini, Mohammad, Rodenburg, Brandon   +5 more
core   +4 more sources

Occlusion Culling for Wide-Angle Computer-Generated Holograms Using Phase Added Stereogram Technique

Photonics, 2021
A computer-generated hologram (CGH) allows synthetizing view of 3D scene of real or virtual objects. Additionally, CGH with wide-angle view offers the possibility of having a 3D experience for large objects.
Juan Martinez-Carranza, Tomasz Kozacki, Rafał Kukołowicz, Maksymilian Chlipala, Moncy Sajeev Idicula   +4 more
doaj   +1 more source

Robust particle outline extraction and its application to digital on-line holography [PDF]

, 2014
Peer ...
Burns, Nicholas M, Watson, John
core   +1 more source

Structure and singly occupied molecular orbital analysis of anionic tautomers of guanine [PDF]

, 2008
Recently we reported the discovery of adiabatically bound anions of guanine which might be involved in the processes of DNA damage by low-energy electrons and in charge transfer through DNA.
Abdoul-Carime, Aflatooni, Aflatooni, Atkins, Bachorz, Berlin, Bixo, Boudaïffa, Cai, Cai, Carhart, Dolgounitcheva, Downs, Downs, Frisch, Gutowski, Haranczyk, Haranczyk, Haranczyk, Haranczyk, Haranczyk, Haranczyk, Hendricks, Henkelman, Hert, Holliday, Humphrey, Kendall, Kendall, Li, Li, Mazurkiewicz, Messer, Periquet, Ptasinska, Sanville, Seidel, Straatsma, Taylor, Tonzani, Wesolowski, Willett, Zakjevskii   +42 more
core   +1 more source