Dual-wavelengths filter operating at visible wavelength region using subwavelength grating on waveguide structure
Sign Up to like & getrecommendations! Published in 2019 at "Optical Review"
DOI: 10.1007/s10043-019-00541-3
Abstract: A dual-wavelength filter was experimentally demonstrated using subwavelength grating (SWG)/waveguide structure. We designed the structural parameters of the SWG and the waveguide to find the reflection peaks in the visible wavelength region. To investigate the… read more here.
Keywords: visible wavelength; subwavelength grating; using subwavelength; waveguide structure ... See more keywords
Experimental Investigation of the Hyperfine Structure of Tm I with Fourier Transform Spectroscopy, Part A: in the visible wavelength range (400 nm – 700 nm)
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Quantitative Spectroscopy and Radiative Transfer"
DOI: 10.1016/j.jqsrt.2022.108195
Abstract: The spectra emitted by a thulium hollow-cathode discharge lamp with argon or neon as inert gases have been recorded with a Bruker IFS 125 HR Fourier Transform spectrometer in the visible wavelength region from 400… read more here.
Keywords: spectroscopy; hyperfine structure; structure; fourier transform ... See more keywords
Visible Wavelength Planar Metalenses Based on Titanium Dioxide
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Journal of Selected Topics in Quantum Electronics"
DOI: 10.1109/jstqe.2016.2616447
Abstract: We present recent advances in metasurface-based photonics, which enables the realization of high performance planar lenses (metalenses) in the visible spectrum. They are enabled by a technique based on atomic layer deposition of titanium dioxide… read more here.
Keywords: planar; titanium dioxide; visible wavelength; wavelength planar ... See more keywords
Visible-Wavelength All-Fiber Vortex Laser
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2019.2934150
Abstract: We report the first demonstration of a compact all-fiber visible-wavelength laser directly emitting cylindrical vector or vortex beams. The visible all-fiber cavity is constructed by a few-mode Pr/Yb-codoped ZBLAN fiber pumped by a 850 nm… read more here.
Keywords: tex math; inline formula; visible wavelength; fiber ... See more keywords
Fast quantum-enhanced imaging with visible-wavelength entangled photons.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.471429
Abstract: Quantum resources can provide supersensitive performance in optical imaging. Detecting entangled photon pairs from spontaneous parametric down conversion (SPDC) with single-photon avalanche diode (SPAD) image sensor arrays (ISAs) enables practical wide-field quantum-enhanced imaging. However, matching… read more here.
Keywords: quantum; enhanced imaging; visible wavelength; quantum enhanced ... See more keywords
Design of Polarization-Independent Reflective Metalens in the Ultraviolet–Visible Wavelength Region
Sign Up to like & getrecommendations! Published in 2021 at "Nanomaterials"
DOI: 10.3390/nano11051243
Abstract: Flat lens or metalens, as one of the most important application branches of metasurfaces, has recently been attracting significant research interest. Various reflective and transmissive metalenses have been demonstrated in the terathertz, infrared and visible… read more here.
Keywords: visible wavelength; reflective metalens; wavelength range; wavelength region ... See more keywords
2D Saturable Absorbers for Potential Pulse Generation in the Visible-Wavelength Band
Sign Up to like & getrecommendations! Published in 2023 at "Photonics"
DOI: 10.3390/photonics10050543
Abstract: Implementing compact, efficient, and reliable passive pulsed lasers at visible wavelengths is attractive. This paper systematically investigated the thickness-dependent optical absorption characteristics of two-dimensional materials, including graphene, transition-metal dichalcogenides, and dye films at the 532… read more here.
Keywords: band; pulsed lasers; visible wavelength; wavelength band ... See more keywords