JST 光の創成・操作と展開

Takashige
Omatu


	URL:	http://physics.tp.chiba-u.jp/~omatsu/index.html

　Curriculum Vitae

【 Academic Experience 】

Research Associate, Department of Image Science, Chiba University, Japan 1992-1996
Associate Professor, ibid, 1996- 2007
Professor, ibid, 2007-to the present time
External Research Fellow, Institute of Industrial Science, University of Tokyo, 2000-to the present time

【 International Collaboration 】

Japanese-Australian Joint Research Program supported by Japan Society for the Promotion of Science 2002.2-2004.1. (Center for Laser and Applications, Macquarie University, Australia)
Japanese-English Joint Research Program supported by Japan Society for the Promotion of Science 2004.2-to the present time. (Department of Physics, Imperial College, London, United Kingdom)

Qualifications :
B.E (1983) awarded from University of Tokyo.
M.E.(1989) awarded from University of Tokyo.
PhD of Engineering (1992) awarded from University of Tokyo

－ Research interests －
Laser physics, Nonlinear Optics, Optical phase conjugation, Adaptive optics, Beam shaping

－Ｈｏｂｂｉｅｓ－
Photographs, Cooking, Playing the guitar

　Introduction of the project

Optical vortices are unique in that they show an orbital angular momentum (topological charge). They can be used for extending capabilities of optical twizeer, coherent quantum control, etc..

Recently, high intensity fields produced by pico-second or femto-second lasers have been attracting a lot of interest in high field physics including coherent extra ultra-violet generation, above threshold ionization, chemical quantum control, and atto-second physics, etc.. If high intensity and high quality optical vortices are created efficiently, the orbital angular momentum of the optical vortices will open up new applications in high field laser physics.

In recent years, we have successfully demonstrated direct production of a high power vortex mode (>10W) from a diode-pumped Nd:YVO4 bounce amplifier with an asymmetric cavity configuration. This laser system will explore new applications in high field laser physics, as well as nonlinear optics.

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