Search Results - "Nersisyan, Sarik R"

Improving vector vortex waveplates for high-contrast coronagraphy by Nersisyan, Sarik R, Tabiryan, Nelson V, Mawet, Dimitri, Serabyn, Eugene

“…Vector vortex waveplates (VVWs) open the door to new techniques in stellar coronagraphy and optical communications, but the performance of currently available…”
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Polarization insensitive imaging through polarization gratings by Nersisyan, Sarik R, Tabiryan, Nelson V, Hoke, Landa, Steeves, Diane M, Kimball, Brian R

“…Liquid crystal polarization gratings exhibit high diffraction efficiency (approximately 100%) in thin material layers comparable to the radiation wavelength…”
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All-optical diffractive/transmissive switch based on coupled cycloidal diffractive waveplates by Serak, Svetlana V, Hakobyan, Rafael S, Nersisyan, Sarik R, Tabiryan, Nelson V, White, Timothy J, Bunning, Timothy J, Steeves, Diane M, Kimball, Brian R

“…Pairs of cycloidal diffractive waveplates can be used to doubly diffract or collinearly propagate laser radiation of the appropriate wavelength. The use of a…”
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Broadband waveplate lenses by Tabiryan, Nelson V, Serak, Svetlana V, Nersisyan, Sarik R, Roberts, David E, Zeldovich, Boris Ya, Steeves, Diane M, Kimball, Brian R

“…We report on lenses that operate over the visible wavelength band from 450 nm to beyond 700 nm, and other lenses that operate over a wide region in the…”
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Vector Vortex Waveplates with Tunable Spectrum and Switchable Topological Charge by Nersisyan, Sarik R., Sigley, Justin, Liao, Zhi, Roberts, David E., Ouskova, Olena, Pshenichnii, Andrii, Tabiryan, Nelson V., Serabyn, Eugene

“…The contrast of astronomical coronagraphs based on vector vortex waveplates (VWs) depends critically on precision of fulfilment of half-wave retardation…”
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Transparent thin film polarizing and optical control systems by Tabiryan, Nelson V., Nersisyan, Sarik R., White, Timothy J., Bunning, Timothy J., Steeves, Diane M., Kimball, Brian R.

“…We show that a diffractive waveplate can be combined with a phase retardation film for fully converting light of arbitrary polarization state into a polarized…”
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Polarization Imaging Components Based on Patterned Photoalignment by Nersisyan, Sarik R., Tabiryan, Nelson V.

“…The photoalignment technique was used for creating liquid crystal (LC) and LC polymer based polarization imaging components comprising areas of different…”
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Microvibration-enhanced transparency of electrically aligned liquid crystals in nanoparticle networks by Nersisyan, Sarik R., Tabiryan, Nelson V.

“…We study the process of orienting nanoparticle dispersed liquid crystals (NPD-LCs) with the aid of low-frequency (1-100 Hz) shearing microvibrations (1-10 µm…”
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The effect of low-frequency microvibrations on nanoparticle networks embedded in liquid crystals by Nersisyan, Sarik R., Tabiryan, Nelson V.

“…We describe an opportunity of orienting liquid crystals in nanoparticle networks (LCNNs) which considerably enhances the transmission of the material and makes…”
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The Influence of Interface Controlled Effects on the Processes in Semiconductor-Liquid Crystal Structures by Arakelyan, Artsrun H., Aroutiounian, Vladimir M., Meliksetyan, Vachagan A., Nersisyan, Sarik R.

“…We discuss peculiarities of nonlinear and electrooptical processes caused by the influence of an external electric field acting along the interface between a…”
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