Simulation of the focusing optics of a crossed Czerny-Turner spectrograph for prototypes adjustments

Ruben Sánchez, Guillermo Baldwin, Rafael Coello

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

It has been prototyped the basic optics and electronics of a crossed Czerny-Turner spectrograph to work at different wavelengths. The optical system of the spectrograph prototype has been simulated using OSLO software in order to optimize the capture of the light spectrum. The study that is presented in this paper is based on the optimization of the focusing optics orientation that would obtain the smallest y-spot width onto a linear CCD, for different central wavelengths. It has been changed the orientation of the focusing optics trough the simulation, and changes in the spot diagram has been observed and plotted. Finally, we have obtained recommendations using these results, how to adjust the focusing optics in real spectrographs for different central wavelengths. Simulated spectrograph had about 0.25 nm mean resolution with a focusing optics of 100 mm focal length.

Original languageEnglish
Title of host publication22nd Congress of the International Commission for Optics
Subtitle of host publicationLight for the Development of the World
DOIs
StatePublished - 2011
Event22nd Congress of the International Commission for Optics: Light for the Development of the World - Puebla, Mexico
Duration: 15 Aug 201119 Aug 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8011
ISSN (Print)0277-786X

Conference

Conference22nd Congress of the International Commission for Optics: Light for the Development of the World
Country/TerritoryMexico
CityPuebla
Period15/08/1119/08/11

Keywords

  • focusing optics
  • linear CCD
  • optical simulation
  • prototype
  • spectrograph
  • spot diagram

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