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http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/887| Developing an advanced prototype of acousto-optical radio spectrometer | |
| SANDRA ELOISA BALDERAS MATA ALEXANDER SHCHERBAKOV DANIEL SANCHEZ LUCERO ABRAHAM LUNA CASTELLANOS LUIS CARRASCO BAZUA | |
| EDUARDO TEPICHIN RODRIGUEZ GUILLERMO HERRERA MARTINEZ | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Within this technical report, an opportunity of developing just an advanced prototype of the acousto-optic spectrometer for radio-astronomy is practically touched. The proclaimed advances mean in fact that the presented approach intends potential progress in this area based mainly on involving new physical phenomena, modern algorithms for signal processing, and novel acousto-optical materials. In connection with these, this technical report can be considered as the first attempt for presenting the corresponding efforts. In any prototype of similar spectrometer, a high-frequency radio signal is injected into a large-aperture acousto-optical cell via a piezo-electric transducer. In fact, this signal produces numerous sets of dynamic acoustic gratings (each corresponds to a partial frequency contribution of the initial highfrequency radio signal), which modulate the incident widely expanded light beam of a fixed wavelength. In so doing, the incident light beam becomes to be divided into the sets of the corresponding partial beams arranging the independent parallel frequency channels and being scanned at the angles depending on the partial acoustic frequencies. The intensities of partial light beams are determined by the amplitudes of partial frequency components inherent in the initial high-frequency radio-signal. Later, these partial light beams are focused by the Fourier transforming lens system on a linear CCD-array for the further computer processing. Thus, similar prototype of a radio spectrometer consists of different optical sub-systems, namely the beam shaper and Fourier transform system, pooled by an acousto-optical cell, which represents by itself a separate opto-electronic sub-system, see Fig.1.1. | |
| Instituto Nacional de Astrofísica, Óptica y Electrónica | |
| 2010 | |
| Reporte | |
| Inglés | |
| Estudiantes Investigadores Público en general | |
| ÓPTICA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Reportes Técnicos de Óptica |
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| Fichero | Tamaño | Formato | |
|---|---|---|---|
| BalderasMSE.pdf | 1.18 MB | Adobe PDF | Visualizar/Abrir |