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

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