[19p-A302-1~23] 3.4 Biomedical optics

[19p-A302-7] Compact, Highly Stable Implementation of Ultrafast Confocal Microscopy by In-Line Interferometry

〇(B)Hiroshi Kanno¹, Hideharu Mikami¹, Yasuyuki Ozeki², Keisuke Goda^1,3 (1.School of Sci., Univ. of Tokyo, 2.School of Eng., Univ. of Tokyo, 3.JST)

Keywords:confocal fluorescence microscopy, frequency-division multiplexing, interferometry

We present compact and stable implementation of ultrafast frequency-division-multiplexed confocal microscopy. The compactness is realized by using beaem splitting devices such as Wollaston prisms and acousto-optic deflectors having small (1-2 degrees) splitting angles, and by combining the split beams throght relay lenses. As a proof-of-concept demonstration, we obtained a transmission image of a test target at a speed of 15,000 frames/sec.