Results 21 to 30 of about 41,921 (296)

Polarization insensitive blazed diffraction gratings [PDF]

Journal of the European Optical Society-Rapid Publications, 2006
Gratings insensitive to light polarization may be useful in many areas of optical engineering, particularly in light demultiplexing application. We study different kinds of binary gratings able to present reflected efficiencies higher than 98% in the ...
Bonod Nicolas, Popov Evgeny, Enoch Stefan, Néauport Jérôme   +3 more
doaj   +1 more source

Latent image diffraction from submicron photoresist gratings [PDF]

, 1992
Light scattering from latent images in photoresist is useful for lithographic tool characterization, process monitoring, and process control. In particular, closed‐loop control of lithographic processes is critical for high yield, low cost device ...
Giapis, Konstantinos P., Gottscho, Richard A., Green, Christian A., Hayes, Todd R., Yoon, Euijoon   +4 more
core   +1 more source

Resonant diffraction gratings with polarization-dependent efficiencies [PDF]

EPJ Web of Conferences, 2020
Subwavelength-structures with different fill factors in the lateral dimensions result in unique phase shifts for the different polarization states of transmitted light. By using this additional degree of freedom for diffractive optical elements, we yield
Wüster Julian, Feßer Patrick, Behrens Arne, Sinzinger Stefan   +3 more
doaj   +1 more source

The Infrared Imaging Spectrograph (IRIS) for TMT: Volume phase holographic grating performance testing and discussion [PDF]

, 2014
Maximizing the grating efficiency is a key goal for the first light instrument IRIS (Infrared Imaging Spectrograph) currently being designed to sample the diffraction limit of the TMT (Thirty Meter Telescope). Volume Phase Holographic (VPH) gratings have
Chen, Shaojie, Larkin, James E., Maire, Jerome, Meyer, Elliot, Mieda, Etsuko, Moore, Anna M., Simard, Luc, Wright, Shelley A.   +7 more
core   +2 more sources

Two-Grating Talbot Bands Spectral Domain Interferometer [PDF]

, 2015
A configuration for Talbot bands is presented, where two tilted gratings replace the splitter normally used for recombining the signals from the two interferometer arms.
Bradu, Adrian, Marques, M.J., Podoleanu, Adrian G.H.   +2 more
core   +1 more source

Tailorable Elastomeric Grating With Tunable Groove Density Gradient

IEEE Photonics Journal, 2017
This paper describes a new method for fabrication of tailorable elastomeric gratings with tunable groove density gradients based on stretching of the grating sample in a direction perpendicular to the grating line within the grating surface.
Bin Sheng, Luwen Luo, Yuanshen Huang, Guohua Chen, Hongyan Zhou, Dawei Zhang, Songlin Zhuang   +6 more
doaj   +1 more source

Diffraction gratings of isotropic negative phase-velocity materials [PDF]

, 2004
Diffraction of electromagnetic plane waves by the gratings made by periodically corrugating the exposed planar boundaries of homogeneous, isotropic, linear dielectric--magnetic half--spaces is examined.
Akhlesh Lakhtakia, Bohren, Born, Chandezon, Chandezon, Chuang, Depine, Depine, Granet, Granet, Harris, Harrison, Hill, Hu, Inchaussandague, Inchaussandague, Kwan, Lakhtakia, Lakhtakia, Lakhtakia, Lakhtakia, Lester, Lester, Li, Li, Lopez, Maradudin, Millar, Parker, Popov, Popov, Raether, Rayleigh, Ricardo Angel Depine, Ruppin, Shadrivov, Shelby, Strang, van den Berg, Waterman   +39 more
core   +2 more sources

Efficient diffractive phase optics for electrons

New Journal of Physics, 2014
Electron diffraction gratings can be used to imprint well-defined phase structure onto an electron beam. For example, diffraction gratings have been used to prepare electron beams with unique phase dislocations, such as electron vortex beams, which hold ...
Tyler R Harvey, Jordan S Pierce, Amit K Agrawal, Peter Ercius, Martin Linck, Benjamin J McMorran   +5 more
doaj   +1 more source

Rigorous analysis of extremely asymmetrical scattering of electromagnetic waves in slanted periodic gratings [PDF]

, 2001
Extremely asymmetrical scattering (EAS) is a new type of Bragg scattering in thick, slanted, periodic gratings. It is realised when the scattered wave propagates parallel to the front boundary of the grating.
Akhmanov, Bakhturin, Bedynska, Bedynska, Chateau, Chu, D.K. Gramotnev, Emel’yanov, Gaylord, Glytsis, Gramotnev, Gramotnev, Gramotnev, Gramotnev, Gramotnev, Gramotnev, Gramotnev, Hall, Jarem, Kishino, Kishino, Kogelnik, Li, Liu, Moharam, Moharam, Moharam, Popov, Popov, Seminogov, Stegeman, T.A. Nieminen, Weller-Brophy   +32 more
core   +3 more sources

Heptagonal quasicrystals: Construction of 2D lattices and demonstrations using laser pointers – Concluding part

Macedonian Journal of Chemistry and Chemical Engineering, 2023
Photographic slides of an aperiodic heptagonal tiling were used as two-dimensional diffraction gratings (as a standard approach) to describe and demonstrate the basic properties of dodecagonal quasicrystals.
Vladimir M. Petruševski, Sašo Kalajdžievski   +1 more
doaj   +1 more source