Articles with "volume bragg" as a keyword



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Improving the spatial resolution of volume Bragg grating two-dimensional monochromatic images.

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Published in 2018 at "Applied optics"

DOI: 10.1364/ao.57.003159

Abstract: Higher spatial resolution indicates sharper recognition ability in applications. To improve the spatial resolution of volume Bragg grating spectral imagers, quantitative wave vector theory is used to elucidate the formation mechanism of diffraction blur, and… read more here.

Keywords: resolution; resolution volume; volume bragg; two dimensional ... See more keywords
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Actively Q-switched tunable single-longitudinal-mode 2 µm Tm:YAP laser using a transversally chirped volume Bragg grating.

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Published in 2020 at "Optics express"

DOI: 10.1364/oe.384499

Abstract: A pulsed, single longitudinal mode, wavelength-tunable Tm:YAP laser is reported. We demonstrate 1 kHz stable operation with 230 µJ, 50 ns pulses and a spectrum linewidth narrowed below 4 pm (FWHM) close to the Fourier… read more here.

Keywords: volume bragg; yap laser; longitudinal mode; single longitudinal ... See more keywords
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Bromide photo-thermo-refractive glass for volume Bragg gratings and waveguide structure recording

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Published in 2017 at "Optical Materials Express"

DOI: 10.1364/ome.7.002280

Abstract: In the present research, a new class of bromine-containing photo-thermo-refractive (PTR) glass in which the UV irradiation and subsequent heat treatment cause the precipitation of silver nanoparticles with a shell consisting of silver bromides is… read more here.

Keywords: thermo refractive; photo thermo; volume bragg; waveguide structure ... See more keywords
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Angular filtering by volume Bragg grating in photothermorefractive glass for nanosecond laser pulse

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Published in 2019 at "Chinese Optics Letters"

DOI: 10.3788/col201917.040501

Abstract: The two-dimensional angular filter based on volume Bragg gratings in photothermorefractive glass for a nanosecond (ns) laser pulse is demonstrated. The experimental results show that the near-field beam quality of the laser pulse was effectively… read more here.

Keywords: volume bragg; nanosecond laser; photothermorefractive glass; laser ... See more keywords