Nulling interferometer with geometric phase modulator

Naoshi Baba; Naoshi Murakami; Tsuyoshi Ishigaki

doi:10.1117/12.458082

21 February 2003 Nulling interferometer with geometric phase modulator

Naoshi Baba, Naoshi Murakami, Tsuyoshi Ishigaki

Proceedings Volume 4838, Interferometry for Optical Astronomy II; (2003) https://doi.org/10.1117/12.458082
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

Geometric phase modulation is used to realize achromatic phase shift in nulling interferometer, where Fresnel rhombs are key components of the geometric phase modulator. Experimental results show high extinction ratio in visible region. Extension of our scheme to the infrared region is also discussed.

Citation Download Citation

Naoshi Baba, Naoshi Murakami, and Tsuyoshi Ishigaki "Nulling interferometer with geometric phase modulator", Proc. SPIE 4838, Interferometry for Optical Astronomy II, (21 February 2003); https://doi.org/10.1117/12.458082

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