Objective spectrometer for exoplanets based on nulling polarization interferometry

Naoshi Baba; Naoshi Murakami; Youko Tate; Yoichiro Sato; Motohide Tamura

doi:10.1117/12.615623

31 August 2005 Objective spectrometer for exoplanets based on nulling polarization interferometry

Naoshi Baba, Naoshi Murakami, Youko Tate, Yoichiro Sato, Motohide Tamura

Proceedings Volume 5905, Techniques and Instrumentation for Detection of Exoplanets II; 590512 (2005) https://doi.org/10.1117/12.615623
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

The light from exoplanets is expected to be partially polalized and the image intensity becomes different with the polarization direction. Based on this expectation we have reported the laboratory experiment of two-channel nulling stellar coronagraph for direct imaging of exoplanets, where a differential imaging with respect to mutually orthogonally polarized light is conducted. We show that this differential technique is also useful for obtaining objective spectra of exoplanets. Several experimental results on the differential objective spectrometer are reported.

Citation Download Citation

Naoshi Baba, Naoshi Murakami, Youko Tate, Yoichiro Sato, and Motohide Tamura "Objective spectrometer for exoplanets based on nulling polarization interferometry", Proc. SPIE 5905, Techniques and Instrumentation for Detection of Exoplanets II, 590512 (31 August 2005); https://doi.org/10.1117/12.615623

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