Doughnut Mode Beams

Formation of a doughnut laser beam for super-resolving microscopy using a phase spatial light modulator

[+] Author Affiliations
Takeshi Watanabe

Tokyo Institute of Technology, Chemical Resources Laboratory, 4259 Nagatsuta, Midori-ku, Yokohama?226-8503, Japan

Yasunori Igasaki, Norihiro Fukuchi

Hamamatsu Photonics K.K., 5000 Hirakuchi, Hamakita-shi?434-8601, Japan

Makoto Sakai

Tokyo Institute of Technology, Chemical Resources Laboratory, 4259 Nagatsuta, Midori-ku, Yokohama?226-8503, Japan

Shun-ichi Ishiuchi

Tokyo Institute of Technology, Chemical Resources Laboratory, 4259 Nagatsuta, Midori-ku, Yokohama?226-8503, Japan

Japan Science and Technology, Corporation, PRESTO, 4-1-8, Hon-cho, Kawaguchi-shi?332-0012, Japan

Masaaki Fujii

Tokyo Institute of Technology, Chemical Resources Laboratory, 4259 Nagatsuta, Midori-ku, Yokohama?226-8503, Japan

Takashige Omatsu

Chiba University, Department of Engineering, 1-33 Yayoi-cho, Inage-ku, Chiba-shi?263-0022, Japan

Kimihisa Yamamoto

Keio University, Department of Chemistry, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama-shi?223-8522, Japan

Yoshinori Iketaki

Olympus Optical Company, Limited, 2-3 Kuboyama-cho, Hachioji-shi?192-8512, JapanE-mail: y_iketaki@ot.olympus.co.jp

Opt. Eng. 43(5), 1136-1143 (May 01, 2004). doi:10.1117/1.1690767
History: Received Aug. 5, 2003; Revised Nov. 19, 2003; Accepted Nov. 19, 2003; Online April 19, 2004
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The formation of a doughnut-shaped laser beam is presented. To generate the beam, we use an optically addressed parallel-aligned nematic liquid-crystal phase spatial light modulator (PAL-SLM), and observe the shape of the focused beam. By using a compensating technique for wave aberration, the beam has a symmetric doughnut shape with a hole size of 1 μmϕ on the focal plane. The experimental result shows that the generated beam can be expected to be applicable to super-resolving microscopy based on the fluorescence depletion process. © 2004 Society of Photo-Optical Instrumentation Engineers.

© 2004 Society of Photo-Optical Instrumentation Engineers

Citation

Takeshi Watanabe ; Yasunori Igasaki ; Norihiro Fukuchi ; Makoto Sakai ; Shun-ichi Ishiuchi, et al.
"Formation of a doughnut laser beam for super-resolving microscopy using a phase spatial light modulator", Opt. Eng. 43(5), 1136-1143 (May 01, 2004). ; http://dx.doi.org/10.1117/1.1690767


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