Pushing PbS/Metal‐Halide‐Perovskite Core/Epitaxial‐Ligand‐Shell Nanocrystal Photodetectors beyond 3 µm Wavelength
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Functional Materials"
DOI: 10.1002/adfm.201807964
Abstract: PbS nanocrystals have been proven to be highly suitable for photodetector fabrication by facile solution processing, and have been successfully tested as photosensitive material in imaging devices. So far, their spectral response has been blue‐shifted… read more here.
Keywords: metal halide; halide perovskite; wavelength; ligand shell ... See more keywords
Wavelength‐Controlled Photocurrent Polarity Switching in BP‐MoS 2 Heterostructure
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202112696
Abstract: Layered two-dimensional van der Waals (vdW) semiconductors and their heterostructures have been shown to exhibit positive photoconductance (PPC) in many studies. A few recent reports have demonstrated negative photoconductance (NPC) as well that can enable… read more here.
Keywords: npc ppc; wavelength controlled; reversible switching; wavelength ... See more keywords
Linear Dichroism Conversion in Quasi-1D Perovskite Chalcogenide.
Sign Up to like & getrecommendations! Published in 2019 at "Advanced materials"
DOI: 10.1002/adma.201902118
Abstract: Anisotropic photonic materials with linear dichroism are crucial components in many sensing, imaging, and communication applications. Such materials play an important role as polarizers, filters, and waveplates in photonic devices and circuits. Conventional crystalline materials… read more here.
Keywords: dichroism; linear dichroism; dichroism conversion; perovskite chalcogenide ... See more keywords
Accurate Wavelength Tracking by Exciton Spin Mixing
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202205015
Abstract: Wavelength‐discriminating systems typically consist of heavy benchtop‐based instruments, comprising diffractive optics, moving parts, and adjacent detectors. For simple wavelength measurements, such as lab‐on‐chip light source calibration or laser wavelength tracking, which do not require polychromatic… read more here.
Keywords: accurate wavelength; tracking exciton; wavelength tracking; spin mixing ... See more keywords
Generating Focused 3D Perfect Vortex Beams By Plasmonic Metasurfaces
Sign Up to like & getrecommendations! Published in 2018 at "Advanced Optical Materials"
DOI: 10.1002/adom.201701228
Abstract: DOI: 10.1002/adom.201701228 from the Fourier transformation of the Bessel–Gauss (BG) beam,[13,14] by utilizing a series of free-space bulky optical components including axicon, spiral phase plate, Fourier transform lens, and spatial light modulator. This fact greatly… read more here.
Keywords: optical components; phase; bulky optical; plasmonic metasurfaces ... See more keywords
Optical-Resolution Photoacoustic Microscopy with Ultrafast Dual-Wavelength Excitation.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of biophotonics"
DOI: 10.1002/jbio.201960229
Abstract: Fast functional and molecular photoacoustic microscopy requires pulsed laser excitations at multiple wavelengths with enough pulse energy and short wavelength-switching time. Recent development of stimulated Raman scattering in optical fiber offers a low-cost laser source… read more here.
Keywords: microscopy; ultrafast dual; dual wavelength; wavelength excitation ... See more keywords
Single-wavelength sO2 measurement based on Grüneisen-relaxation photoacoustic effect.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of biophotonics"
DOI: 10.1002/jbio.202300084
Abstract: The photoacoustic effect-based sO2 measurement is attracting more and more attention due to its non-invasiveness and accuracy. Compared with the linear dual-wavelength method, the sO2 measurement based on single-wavelength excitation can be potentially applied with… read more here.
Keywords: wavelength; photoacoustic effect; so2 measurement; single wavelength ... See more keywords
Wavelength-dependent near-infrared microbolometer for short-wavelength infrared light with gold nanowire grating optical absorber
Sign Up to like & getrecommendations! Published in 2020 at "Microsystem Technologies"
DOI: 10.1007/s00542-020-05004-3
Abstract: Near-infrared (NIR) imaging has been used for nondestructive and non-contact inspections in various areas, such as food and medicine inspections and medical diagnoses. The short-wavelength infrared light (SWIR) sensor currently used requires a Peltier cooler… read more here.
Keywords: near infrared; wavelength dependent; nanowire grating; wavelength ... See more keywords
Wavelength-dependent light transmittance in resin composites: practical implications for curing units with different emission spectra
Sign Up to like & getrecommendations! Published in 2019 at "Clinical Oral Investigations"
DOI: 10.1007/s00784-019-02896-y
Abstract: ObjectivesTo evaluate light transmittance as a function of wavelength for eight composite materials and compare the transmittance for blue light produced from two curing units with different emission spectra.Materials and methodsLight transmittance through 2- and… read more here.
Keywords: units different; light transmittance; transmittance; curing units ... See more keywords
Calibration of Near-Infrared Detectors Using a Wavelength Tunable Light Source
Sign Up to like & getrecommendations! Published in 2020 at "Optical Review"
DOI: 10.1007/s10043-020-00586-9
Abstract: This paper presents the spectral responsivity calibrations of two indium gallium arsenide (InGaAs) and one germanium based near-infrared photovoltaic detectors using a wavelength tunable laser source based on a supercontinuum laser developed at the Metrology… read more here.
Keywords: wavelength tunable; using wavelength; light source; wavelength ... See more keywords
Effect of wavelength and beam width on penetration in light-tissue interaction using computational methods
Sign Up to like & getrecommendations! Published in 2017 at "Lasers in Medical Science"
DOI: 10.1007/s10103-017-2317-4
Abstract: Penetration depth of ultraviolet, visible light and infrared radiation in biological tissue has not previously been adequately measured. Risk assessment of typical intense pulsed light and laser intensities, spectral characteristics and the subsequent chemical, physiological… read more here.
Keywords: penetration; beam width; tissue; geometry ... See more keywords