Development of highly advanced soft x-ray lasers for biomedical and nano-laser medicine applications

H. Kuroda; Rashid A. Ganeev; M. Suzuki; Motoyoshi Baba; J. Zhang; T. Ozaki

doi:10.1117/12.639108

11 September 2006 Development of highly advanced soft x-ray lasers for biomedical and nano-laser medicine applications

H. Kuroda, Rashid A. Ganeev, M. Suzuki, Motoyoshi Baba, J. Zhang, T. Ozaki

Proceedings Volume 5967, 2004 Shanghai International Conference on Laser Medicine and Surgery; 596708 (2006) https://doi.org/10.1117/12.639108
Event: 2004 Shanghai international Conference on Laser Medicine and Surgery, 2004, Shanghai, China

Abstract

Current activities on our research of soft X-ray lasers and higher harmonic generations using intense, subpicosecond lasers are reviewed. Especially for soft X-ray lasers we experimentally demonstrate that by longitudinally pumping 2-mm-long molybdenum preformed plasma with high-intensity 475 fs duration laser pulse, a highly directive soft-X-ray laser at 18.9 nm wavelength is generated. The divergence of the beam is evaluated to be of the submillirad order, and only requires pump laser energy of 150 mJ. Simulations show that the pedestal in the main pump pulse can generate electron density and gain profiles with large spatial gradients, which result in the selective amplification of low-order transverse modes. The present result is the demonstration of an efficient and alternative method of improving the spatial coherence of X-ray lasers with amplified spontaneous emission medium, with possibilities of becoming an excellent tool to explore various application experiments. In higher harmonic generation, topics related to observation of blue shift due to collisionless absorption process is described.

Citation Download Citation

H. Kuroda, Rashid A. Ganeev, M. Suzuki, Motoyoshi Baba, J. Zhang, and T. Ozaki "Development of highly advanced soft x-ray lasers for biomedical and nano-laser medicine applications", Proc. SPIE 5967, 2004 Shanghai International Conference on Laser Medicine and Surgery, 596708 (11 September 2006); https://doi.org/10.1117/12.639108

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available