Results 101 to 110 of about 2,348 (165)

Single shot polarization resolved coded aperture imaging. [PDF]

Sci Rep
Joshi N, Tiwari V, Tamm A, Rosen J, Anand V.   +4 more
europepmc   +1 more source

Nanophotonic waveguide chip-to-world beam scanning. [PDF]

Nature
Saha M, Wen YH, Greenspon AS, Zimmermann M, Palm KJ, Witte A, Goh YM, Li C, Bumstead J, Schädler K, Fortin R, Dong M, Leenheer AJ, Clark G, Gilbert G, Eichenfield M, Englund D.   +16 more
europepmc   +1 more source

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Computer-generated stratified diffractive optical elements

Applied Optics, 2003
We present what is to our knowledge a new type of diffractive optical element (DOE), the computer-generated stratified diffractive optical element (SDOE), a hybridization of thin computer-generated DOEs and volume holograms. A model and several algorithms for calculating computer-generated SDOEs are given.
Borgsmüller, Stefan, Noehte, Steffen, Dietrich, Christoph H., Kresse, Tobias, Männer, Reinhard   +4 more
openaire   +3 more sources

New diffractive optical elements

SPIE Proceedings, 1993
Two classes of DOE in which fabrication is based on the technology used in microelectronics are considered: multiorder binary-phase (Dammann) gratings, and diffractive aberration correctors. Calculating the structure of the element is necessary to take into account the unavoidable technological deviations from the theoretical profile.
Sergei T. Bobrov, Boris N. Kotletsov, Yuri G. Turkevich   +2 more
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Multilayer technology for diffractive optical elements

Applied Optics, 1996
The proposed multilayer technology makes it possible to approximate a continuous phase distribution by discrete phase steps. Compared with binary techniques, a higher diffraction efficiency can be achieved. In most known processes a bulk substrate is used and etched directly; therefore it is difficult to control the height of the phase steps.
B, Goebel, L L, Wang, T, Tschudi
openaire   +2 more sources

Multifunctional double-layered diffractive optical element

Optics Letters, 2003
We propose a novel multifunctional double-layered diffractive optical element (DOE) based on the fractional Talbot effect. This DOE consists of two layers: one is the encoding layer, in which multiple sub-DOEs, i.e., multiple optical functions, are encoded; the other is the decoding layer, which is a properly designed Talbot illuminator.
Enwen, Dai, Changhe, Zhou, Peng, Xi, Liren, Liu   +3 more
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Diffractive optical elements

[1989] Proceedings of the Twenty-Second Annual Hawaii International Conference on System Sciences. Volume 1: Architecture Track, 2003
Diffractive optical elements that can be used to manipulate the amplitude, phase, and polarization of a wavefront in very complex ways are treated. Optical components whose feature size is larger than one wavelength, about equal to one wavelength, and smaller than one wavelength are considered.
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Silicon-based transmissive diffractive optical element

Optics Letters, 2003
A silicon nitride (SiNx) membrane diffractive optical element (DOE) designed to exhibit beam-splitting and focusing behavior at visible wavelengths has been fabricated and tested. Since the fabrication process is based on silicon micromachining technology, the DOE is easily integrated with a laser diode chip and a photodiode chip on a silicon substrate
Chien Chieh, Lee, Yu Cheng, Chang, Chih Ming, Wang, Jenq Yang, Chang, Gou Chung, Chi   +4 more
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Programmable Diffractive Optical Elements

Spatial Light Modulators and Applications, 1993
Diffractive optical elements can be written onto spatial light modulators (SLM's) yielding several advantages.
Jeffrey A. Davis, Don M. Cottrell, Robert M. Bunch, Werner V. Brandt, Heidi M. Schley-Seebold, Jarod Guertin   +5 more
openaire   +1 more source