The conventional spectrometers rely on one-to-one spectral-to-spatial mapping. Such mapping is necessary for a wavelength demultiplexer but not a spectrometer. Complex spectral to spatial mapping has been explored with disordered photonic crystals, thin scattering media, and random polychromat, for spectrometer application. The disorder-induced scattering of light produces wavelength-dependent ...

A low-cost Commercial-Off-The-Shelf (COTS) 4H-SiC 0.06 mm2 UV p-n photodiode was coupled to a low-noise charge-sensitive preamplifier and used as photon counting X-ray spectrometer. The photodiode/spectrometer was investigated at X-ray energies from 4.95 keV to 21.17 keV: a Mo cathode X-ray tube was used to fluoresce eight high-purity metal foils to produce characteristic X-ray emission lines w...

This paper reviews the current research on the speciation and determination of mercury by various analytical instruments such as, atomic absorption spectrometer (AAS), voltammeter, inductively coupled plasma optical emission spectrometer (ICP-OES), ICP-atomic emission spectrometer (AES), ICP-mass spectrometer (MS), atomic fluorescence spectrometer (AFS), spectrophotometer, spectrofluorometer, a...

Thanks to the new satellite technology, global scenes of the dynamical and chemical processes of the atmospheric compounds can be drawn. Ground-based equipments have to be used for comparison/validation of the satellite retrievals. The SPATRAM (SPectrometer for Atmospheric TRacers and Aerosol Measurement) is a UV-Vis spectrometer allowing for the measurements of spectral sky radiance along the ...

VAMOS (VAriable MOde Spectrometer) is a large solid angle ray-tracing spectrometer employing numerical methods for reconstructing the particle trajectory. Complete identification of reaction products has been achieved by trajectory reconstruction. Equipped with a versatile detection system, VAMOS is capable of identifying reaction products from diverse reactions using beams at GANIL. The techni...