Results 151 to 160 of about 200,551 (195)
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Single-pixel echelle spectrometer based on compressive sensing
Optik, 2021Abstract In this paper, a single pixel echelle spectrometer system based on compressed sensing theory is proposed. The Digital Micromirror Devices (DMD) is used as the Coding board, and the photomultiplier of high sensitivity point detector is used as the signal receiver.
Wenyi Ren, Jiangang Jiang
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Compressive Sensing Echelle Spectrometer
Frontiers in Optics 2009/Laser Science XXV/Fall 2009 OSA Optics & Photonics Technical Digest, 2009A compressive sensing echelle spectrometer has been built. By employing compression, we reconstructed the two dimensional echelle spectrums using the single photodetector with far fewer measurements when compared to raster scanning.
Lina Xu, Ting Sun, Kevin Kelly
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A uniform dispersion design method for echelle spectrometer
Optics CommunicationsLu Yin
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Some characteristics of a commercial echelle spectrometer
Spectrochimica Acta Part B: Atomic Spectroscopy, 1986Spectrometre a reseau echelette utilise en spectrometrie d'emission atomique a plasma couple ...
H. Kawaguchi, K. Yoshimura, A. Mizuike
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An Echelle Spectrometer–Spectrograph for Astronomical Use
Applied Optics, 1967A compact echelle spectrometer-spectrograph has been designed for use at the Cassegrain focus of the University of Wisconsin 91-cm telescope at Pine Bluff. Laboratory results obtained with this instrument show that it has great potential for both stellar and nebular studies. Typical photographs and photoelectric scans of laboratory spectra are shown. A
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An echelle diffraction grating for imaging spectrometer
SPIE Proceedings, 2016We demonstrate an echelle diffraction grating (EDG) of 17 input waveguides and 33 output waveguides. For each input waveguide, only 17 of 33 output waveguides are used, receiving light ranging from 1520 nm to 1600 nm wavelength. The channel spacing of the EDG is 5 nm, with loss of -6dB and crosstalk of -17dB for center input waveguide and -15dB for ...
Minyue Yang +3 more
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Considerations for Designing an Echelle Spectrometer
2014After we had “captured” the echelle grating and the corresponding collimator mirror from the internet, these parts were still not sufficient for the construction of a complete echelle spectrograph. The cross-disperser, the camera optics and the slit assembly at the grating rack were missing. The seller was called.
Thomas Eversberg, Klaus Vollmann
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Simple spectral reduction algorithm used for the echelle spectrometer
Applied Optics, 2018The structure of the echelle spectrometer equipped with a prism cross-dispersion element is very complex because of the nonlinear interaction between the prism and the echelle grating, which makes it difficult to extract the wavelength information from the two-dimensional spectrogram.
Fajie Duan +5 more
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A design cycle for echelle spectrometers
International Optical Design Conference 2017, 2017Echelle spectroscopy is a mature technique that was introduced over 60 years ago. However, the process of determining all of the physical parameters of an echelle spectrometer, especially the main parameters of the echelle grating itself (the groove density, the blaze angle, and the grating’s size), is not easily found in the literature.
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A Low Cost Spectrographic Attachment for an Echelle Spectrometer
Applied Spectroscopy, 1983The report describes a simple, low cost photographic attachment for an echelle spectrometer. The crossed dispersion prism/echelle grating system provides a high resolution spectrum in a compact two dimensional format. It has been estimated that the echelle spectrum obtained on a 4 by 5 in.
John M. Brackett +2 more
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