نتایج جستجو برای: ultraviolet detector
تعداد نتایج: 98559 فیلتر نتایج به سال:
A liquid-xenon-jet laser-plasma source for extreme-ultraviolet ~EUV! and soft-x-ray generation has been characterized. Being a source candidate for EUV lithography ~EUVL!, we especially focus on parameters important for the integration of the source in EUVL systems. The deep-ultraviolet ~DUV! out-of-band radiation ~l5120–400 nm! was quantified, to within a factor of two, using a flying-circus t...
Topical gels containing extracts of Schinus terebinthifolius have been used to treat bacterial vaginosis. It has been reported that this species has antimicrobial, anti-inflammatory and anti-ulcerogenic properties, which can be attributed to the presence of phenolic compounds. In this work, a sensitive and selective reversed-phase HPLC-UV/DAD method for the simultaneous assay of six polyphenols...
A recent application of a simple, all-dry, abrasive transfer 2D materials on paper demonstrates the potential two-dimensional tungsten disulfide (WS2) as sensitive material flexible photoconductive detector. The devices show really good responsivity over bandwidth spanning from near infrared to ultraviolet and could open new avenues towards disposable optoelectronics systems.
We describe the calibration status and data products pertaining to the GR2 and GR3 data releases of the Galaxy Evolution Explorer (GALEX ). These releases have identical pipeline calibrations that are significantly improved over the GR1 data release.GALEX continues to survey the sky in the far-ultraviolet (FUV, 154 nm) and near-ultraviolet (NUV, 232 nm) bands, providing simultaneous imaging wit...
We describe the calibration status and data products pertaining to the GR2 and GR3 data releases of the Galaxy Evolution Explorer (GALEX). These releases have identical pipeline calibrations that are significantly improved over the GR1 data release. GALEX continues to survey the sky in the Far Ultraviolet (FUV, ∼ 154 nm) and Near Ultraviolet (NUV, ∼ 232 nm) bands, providing simultaneous imaging...
A series of miniature photometers has been developed for use as on-stream detectors in systems for liquid chromatography. All of the detectors feature dual-beam, dual-wavelength operation without mechanical or electrical switching of either wavelength or signal. The two types of detectors originally developed-ultraviolet (254 and 280 nm) and colorimetric (any two choices of visible wavelengths)...
In the last decade, ultraviolet detectors have received significant attention due to their widespread use in civil and military fields. this work, we studied effect of radiation different ranges (UV visible) on spectral properties CdTe quantum dots wide-gap graphene QDs. The results obtained can be used create an integrated UV detector based new physical principles
In recent years, there is an urgent demand for high-performance ultraviolet photodetectors with high photosensitivity, fast responsivity, and excellent spectral selectivity. In this letter, we report a self-powered photoelectrochemical cell-type UV detector using the ZnO/ZnS core-shell nanorod array as the active photoanode and deionized water as the electrolyte. This photodetector demonstrates...
Array detector-based instruments are now fundamental to measurements of ozone and other atmospheric trace gases from space in the ultraviolet, visible, and infrared. The present generation of such instruments suffers, to a greater or lesser degree, from undersampling of the spectra, leading to difficulties in the analysis of atmospheric radiances. We provide extended analysis of the undersampli...
To compare the calibration capabilities for the spectral responsivity in the vacuum-ultraviolet spectral region between 135 nm and 250 nm, PTB and NIST agreed on a bilateral comparison. Calibrations of semiconductor photodiodes as transfer detectors were performed using monochromatized synchrotron radiation and cryogenic electrical substitution radiometers as primary detector standards. Great i...
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