Výsledky vyhledávání - "Shivashankar R."

Akademický článek

Angle and Polarization Insensitive Mid-Infrared Optical Filters Using Dense 2D Array of Nanophotonic Cavity Resonators

Autor: Matthew Klein, Shivashankar R. Vangala, Joshua R. Hendrickson, Ivan Avrutsky

Publikováno v: IEEE Photonics Journal, Vol 16, Iss 2, Pp 1-6 (2024)

We report on the design and experimental verification of angle and polarization insensitive mid-infrared filters based on dense arrays of dielectric resonators embedded into a metallic film. We experimentally show filters with 60% peak transmission f

Externí odkaz: https://doaj.org/article/bb02cf6b89e5444fb437ca8fe9863c3b

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Akademický článek

Transmission and nanohardness studies of ternary GaAs1-xPx layers grown from the vapor phase by heteroepitaxy

Autor: Valentin Petrov, Li Wang, Ginka Exner, Shivashankar R. Vangala, Aleksandar Grigorov, Elizabeth Ivanova, Peter G. Schunemann, Vladimir L. Tassev

Publikováno v: Optical Materials: X, Vol 22, Iss , Pp 100313- (2024)

Transmission measurements in the 0.5–25-μm spectral range are performed on thin (

Externí odkaz: https://doaj.org/article/b9ebc2f17b8e43f1b11943adc30ac449

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Akademický článek

Investigation of OP-GaP Grown on OP-GaAs Templates Using Nondestructive Reciprocal Space Mapping

Autor: Balaji Manavaimaran, Axel Strömberg, Vladimir L. Tassev, Shivashankar R. Vangala, Myriam Bailly, Arnaud Grisard, Bruno Gérard, Sebastian Lourdudoss, Yan-Ting Sun

Publikováno v: Crystals, Vol 13, Iss 2, p 168 (2023)

Orientation-patterned gallium phosphide (OP-GaP) has been grown heteroepitaxially on OP gallium arsenide (GaAs) templates using hydride vapor phase epitaxy (HVPE). The effect of OP-GaAs template fabrication methods of epitaxial-inversion and wafer bo

Externí odkaz: https://doaj.org/article/a93ca5e0fdbf457795cb5a58e31d11b6

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Akademický článek

Thick Hydride Vapor Phase Heteroepitaxy: A Novel Approach to Growth of Nonlinear Optical Materials

Autor: Vladimir L. Tassev, Shivashankar R. Vangala

Publikováno v: Crystals, Vol 9, Iss 8, p 393 (2019)

At the time when many nonlinear optical (NLO) materials for frequency conversion of laser sources in the mid and long-wave infrared have achieved their fundamental or technological limits, we propose heteroepitaxy as a solution to develop novel NLO m

Externí odkaz: https://doaj.org/article/54f455ec0a944344865026e69bdf8c13

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