Título

Optical Spectrometer with Acousto-Optical Dynamic Grating for Guillermo Haro Astrophysical Observatory

Autor

ALEXANDER SHCHERBAKOV

Adán Omar Arellanes Bernabe

Vahram Chavushyan

Nivel de Acceso

Acceso Abierto

Resumen o descripción

Optical spectrometer of the Guillermo Haro astrophysical observatory (Mexico) realizes investigations in the visible and near-infrared range 350 - 800 nm and exploits mechanically removable traditional static diffraction gratings as dispersive elements. There is a set of the static gratings with slit-densities 150 - 600 lines/mm and optical apertures 9 cm × 9 cm that provide the first order spectral resolution from 0.8 to 3.2 Å/pixel, respectively. However, the needed mechanical manipulations, namely, replacing the static diffraction gratings with various resolutions and following recalibration of spectrometer within studying even the same object are practically inconvenient and lead to wasting rather expensive observation time. We suggest exploiting an acousto-optical cell, i.e. the dynamic diffraction grating tunable electronically, as dispersive element in that spectrometer. Involving the acousto-optical technique, which can potentially provide electronic control over the spectral resolution and the range of observations, leads to eliminating the above-mentioned demerits and improving the efficiency of analysis

Editor

International Journal of Astronomy and Astrophysics

Fecha de publicación

19 de septiembre de 2013

Tipo de publicación

Artículo

Versión de la publicación

Versión aceptada

Formato

application/pdf

Idioma

Inglés

Audiencia

Estudiantes

Investigadores

Público en general

Sugerencia de citación

Shcherbakov, Alexandre S., et al., (2013). Optical Spectrometer with Acousto-Optical Dynamic Grating for Guillermo Haro Astrophysical Observatory, International Journal of Astronomy and Astrophysics, Vol. 3(4):376-384

Repositorio Orígen

Repositorio Institucional del INAOE

Descargas

152

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