Lamellar grating interferometer based compact FT spectrometers

O. Ferhanoglu*, H. R. Seren, H. Urey

*Corresponding author for this work

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

Abstract

Lamellar grating interferometers (LGI) offer compact spectrometer architecture with high spectral resolution and large clear aperture. This study investigates the diffraction based inherent limitations of LGI spectrometers in contrary to conventional Michelson type spectrometer architecture. Simulations and experiments were conducted to demonstrate and explain periodic nature of the interferogram envelope due to Talbot image formation. Simulations reveal that grating period should be chosen large enough to avoid Talbot phase reversal at the expense of mixing diffraction orders. Overall optimization effort on the LGI system reveals that it is possible to build compact spectrometers to be used directly in the field without any performance degradation in contrary to bulky FTIR systems.

Original languageEnglish
Title of host publication2009 IEEE LEOS Annual Meeting Conference Proceedings, LEOS '09
Pages326-327
Number of pages2
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 IEEE LEOS Annual Meeting Conference, LEOS '09 - Belek-Antalya, Turkey
Duration: 4 Oct 20098 Oct 2009

Publication series

NameConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
ISSN (Print)1092-8081

Conference

Conference2009 IEEE LEOS Annual Meeting Conference, LEOS '09
Country/TerritoryTurkey
CityBelek-Antalya
Period4/10/098/10/09

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