Impact of overmodulation on spectral response in high efficient transmission gratings

Vojtíšek, Petr; Květoň, Milan

doi:10.1117/12.2086801

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2016

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“…Hwang et al [20] stacked three holograms recorded each with a different wavelength to obtain a autostereoscopic display system. Vojtíšek et al [21] analyzed the over-modulation of transmission gratings recorded on this material.…”

Section: Introductionmentioning

confidence: 99%

Characterization of volume holographic optical elements recorded in Bayfol HX photopolymer for solar photovoltaic applications

Marín-Sáez¹,

Atencia²,

Chemisana³

et al. 2016

Opt. Express

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Volume Holographic Optical Elements (HOEs) present interesting characteristics for photovoltaic applications as they can select spectrum for concentrating the target bandwidth and avoiding non-desired wavelengths, which can cause the decrease of the performance on the cell, for instance by overheating it. Volume HOEs have been recorded on Bayfol HX photopolymer to test the suitability of this material for solar concentrating photovoltaic systems. The HOEs were recorded at 532 nm and provided a dynamic range, reaching close to 100% efficiency at 800 nm. The diffracted spectrum had a FWHM of 230 nm when illuminating at Bragg angle. These characteristics prove HOEs recorded on Bayfol HX photopolymer are suitable for concentrating solar light onto photovoltaic cells sensitive to that wavelength range.

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Section: Introductionmentioning

confidence: 99%