Exact calculation of the optical path difference and description of a new birefringent interferometer

Stephanie Prunet; Bernard A. Journet; Gerard Fortunato

doi:10.1117/1.602139

1 June 1999 Exact calculation of the optical path difference and description of a new birefringent interferometer

Stephanie Prunet, Bernard A. Journet, Gerard Fortunato

Optical Engineering, Vol. 38, Issue 6, (June 1999). https://doi.org/10.1117/1.602139

A new Fourier transform spectrometer is presented. The novelty of this work comes from the interferometer designed with two identical Wollaston prisms. Thus, the interferogram, formed at infinity in the spatial domain, is independent of the size of the source and of its position. In order to know the characteristics of the apparatus and especially its resolution, we propose the complete calculation of the optical path difference introduced by such an interferometer. Then, by associating the birefringent interferometer with a lens and a linear CCD sensor, we realize a spectrometer with a theoretical resolution about 230 cm-1. Finally, an experimental result is presented, proving the feasibility of the system.

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Stephanie Prunet, Bernard A. Journet, and Gerard Fortunato "Exact calculation of the optical path difference and description of a new birefringent interferometer," Optical Engineering 38(6), (1 June 1999). https://doi.org/10.1117/1.602139

Published: 1 June 1999

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