نتایج جستجو برای: spectrometer
تعداد نتایج: 21758 فیلتر نتایج به سال:
We report on the application of a silicon micromachined lamellar grating interferometer in a Fourier Transform Infrared (FTIR) spectrometer for the detection of gases in the mid-infrared (MIR) region. The FTIR spectrometer was equipped with MIR optical fibers for light coupling. Gas measurements in the MIR region were focused on specific gases (CO2, CH4) in order to determine the limit of detec...
Speckle patterns produced by a disordered medium or a multimode fiber can be used as a fingerprint to uniquely identify the input light frequency. Reconstruction of a probe spectrum from the speckle pattern has enabled the realization of compact, low-cost, and high-resolution spectrometers. Here we investigate the effects of experimental noise on the accuracy of the reconstructed spectra. We co...
We replace the traditional grating used in a dispersive spectrometer with a multiplex holographic grating to increase the spectral range sensed by the instrument. The multiplexed grating allows us to measure three different, overlapping spectral bands on a color digital focal plane. The detector's broadband color filters, along with a computational inversion algorithm, let us disambiguate measu...
The Multi-Slit Offner Spectrometer (MOS) is a spatial multiplexing imaging spectrometer directed at geostationary remote sensing of coastal ocean color. Simultaneously generating hyperspectral data cubes from multiple locations enables a smaller sensor with faster revisit times compared to traditional spectrometer concepts. The GEO-CAPE Oceans mission embodied in the Event Imager benefits from ...
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