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   Articles with "visible spectral" as a keyword



Experiments with the laser-ablation-made modified uniformly redundant array coded aperture performed in the visible spectral range

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recommendations! Published in 2019 at "Optical Engineering"

DOI: 10.1117/1.oe.58.11.113103

Abstract: Abstract. We describe the process of preparing an experimental study of a coded aperture in the visible spectral range. In the experiments, shadowgrams are supposed to be recorded with a conventional imaging sensor. A feature… read more here.

Keywords: aperture; spectral range; laser ablation; coded aperture ... See more keywords

Study of the Water Vapor Absorption Spectrum in the Visible Spectral Region from 19480 to 20500 cm−1

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recommendations! Published in 2018 at "Atmospheric and Oceanic Optics"

DOI: 10.1134/s1024856018040115

Abstract: The vibrational-rotational absorption spectrum of water vapor was recorded and analyzed in the visible spectral region from 19480 to 20500 cm−1. The measurements were carried out using an IFS-125M Fourier spectrometer with a resolution of… read more here.

Keywords: visible spectral; absorption spectrum; water vapor; spectrum ... See more keywords

Applications of visible spectral imaging technology for pigment identification of colored relics

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recommendations! Published in 2024 at "Heritage Science"

DOI: 10.1186/s40494-024-01434-8

Abstract: Identifying pigments from colored relics is essential for their color restoration and for facsimile creation. A workflow for identifying pigment information is constructed based on visible spectral imaging technology, aligned with the drawing process of… read more here.

Keywords: visible spectral; colored relics; identification; spectral imaging ... See more keywords

Low loss GaN waveguides at the visible spectral wavelengths for integrated photonics applications.

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recommendations! Published in 2017 at "Optics express"

DOI: 10.1364/oe.25.031758

Abstract: We perform comprehensive studies on the fundamental loss mechanisms in III-nitride waveguides in the visible spectral region. Theoretical analysis shows that free carrier loss dominates for GaN under low photon power injection. When optical power… read more here.

Keywords: visible spectral; gan waveguides; integrated photonics; photonics ... See more keywords

Tb,Y:SrF2 crystal for efficient laser operation in the visible spectral region.

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recommendations! Published in 2022 at "Optics letters"

DOI: 10.1364/ol.448898

Abstract: A Tb,Y:SrF2 crystal with high optical quality is grown using the temperature gradient technique. The spectroscopic and laser properties of the crystal in the visible spectral region are studied. A fluorescence lifetime of 5.6 ms… read more here.

Keywords: laser operation; laser; srf2 crystal; spectral region ... See more keywords