Optical schemes of spectrographs with a diffractive optical element in a converging beam

Muslimov, Eduard; Pavlycheva, N. K.

doi:10.2971/jeos.2015.15011

Cited by 2 publications

(1 citation statement)

References 14 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Outside of this region most of the incident flux is transmitted to the 0th order of diffraction. This feature can be used to couple several spectral and/or imaging channels in a single instrument as was shown, for instance, by Muslimov & Pavlycheva (2015). Particularly, if several VPH gratings are mounted one after the other in a cascade, each of them can create a spectral image in a dedicated narrow spectral range without affecting the beam propagation at other wavelengths.…”

Section: Concept Of the Instrument And Optical Designmentioning

confidence: 99%

Experimental Study of an Advanced Concept of Moderate-resolution Holographic Spectrographs

Muslimov¹,

Valyavin²,

Fabrika³

et al. 2018

PASP

View full text Add to dashboard Cite

We present the results of an experimental study of an advanced moderateresolution spectrograph based on a cascade of narrow-band holographic gratings. The main goal of the project is to achieve a moderately high spectral resolution with R up to 5000 simultaneously in the 4300-6800Å visible spectral range on a single standard CCD, together with an increased throughput. The experimental study consisted of (1) resolution and image quality tests performed using the solar spectrum; and (2) a total throughput test performed for a number of wavelengths using a calibrated lab monochromator. The measured spectral resolving power reaches values over R>4000 while the experimental throughput is as high as 55%, which is in good agreement with the modeling results. Comparing the obtained characteristics of the spectrograph under consideration with the best existing spectrographs, we conclude that the used concept can be considered a very competitive and cheap alternative to the existing spectrographs of the given class. We propose several astrophysical applications for the instrument and discuss the prospect of creating its full-scale version.

show abstract

Section: Concept Of the Instrument And Optical Designmentioning

confidence: 99%