Results 161 to 170 of about 7,202 (193)
Some of the next articles are maybe not open access.
Echelle spectrometer for single shot elemental analysis
SPIE Proceedings, 1990The paper presents a spectrometer combining echelles with imaging detectors and optimizing the echelle design to match the behavior of the detector, to be used for simultaneous high-resolution multiwavelength observations of a variety of discharges. The instrument utilizes a dual Czerny-Turner mount, with compensation of astigmatism generated in the ...
Alexander Scheeline +3 more
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources
High-Throughput, High-Resolution Echelle Deep-UV Raman Spectrometer
Applied Spectroscopy, 2013We constructed an ultrahigh-throughput, high-resolution ultraviolet (UV) Raman spectrograph that utilizes a high-efficiency filter-stage monochromator and a high-dispersion Echelle spectrograph. The spectrograph utilizes a total of six mirrors and two gratings, with an overall efficiency at 229 nm of ∼18%.
Sergei V, Bykov +2 more
openaire +2 more sources
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
openaire +1 more source
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.
openaire +1 more source
High resolution stellar spectroscopy with VBT echelle spectrometer
Journal of Astrophysics and Astronomy, 2005The optical design and performance of the recently commissioned fiber fed echelle spectrometer of 2.34 meter Vainu Bappu Telescope are described. The use of it for stellar spectroscopic studies is discussed.
N. Kameswara Rao +3 more
openaire +1 more source
Imaging spectrometers based on waveguide echelle diffraction gratings
2016 Progress in Electromagnetic Research Symposium (PIERS), 2016A method to integrate the spectroscopic system of the push-broom scanning imaging spectrometer onto a single chip is proposed using echelle diffraction grating to split the light in the near infrared range according to different wavelengths. The on-chip spectrometer consists of an optical on-off switch array, a multi-input echelle diffraction grating ...
null Minyue Yang +3 more
openaire +1 more source
Optimization of a direct-current plasma emission echelle spectrometer
Analytica Chimica Acta, 1987Abstract Simplex optimization and Box-Behnken partial factorial experimental design techniques were used to optimize the quantitative performance of a direct-current plasma system. Argon pressure and plasma position were selected as variables. The simplex optimization located the region of optimum sensitivity, and the partial factorial design ...
Martha S. Hendrick, Robert G. Michel
openaire +1 more source
Grazing incidence echelle spectrometers using varied line-space gratings
Applied Optics, 1985Quantitative estimates are provided of the imaging performance expected from a varied line-space echelle spectrometer.
openaire +2 more sources