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The Subaru Seminar is usually held in Room 104 of the Hilo Base Facility, adjacent to the main lobby. Everyone is welcome to attend. If you are interested in giving a seminar, please contact Subaru seminar organizers (Tae-Soo Pyo, Sherry Yeh, Nagayoshi Ohashi) by email : (please change"_at" to @).

September 17, Tuesday, at 11:00 am

" Recent progress of photonic-crystal focal-plane coronagraph masks for direct detection of exoplanets "

Naoshi Murakami

(Hokkaido University/JPL)

Photonic crystal, artificial periodic nanostructure of high and low refractive indices, is an attracting device for manufacturing focal-plane coronagraph masks. We have been developing an eight-octant phase mask (8OPM) and vector vortex mask based on the photonic-crystal technology. In this seminar, I will present laboratory demonstrations of the photonic-crystal coronagraph masks aimed at direct imaging of Earth-like exoplanets. In addition, I will also present our recent activities for installing the 8OPM coronagraph into the Subaru Coronagraphic Extreme AO (SCExAO).

Seminars are also held at JAC, CFHT, and IfA.

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