Title :
Highly coherent high-order harmonic generation by macroscopic phase matching
Author :
Tamaki, Y. ; Itatani, Jiro ; Midorikawa, Katsumi ; Obara, M.
Author_Institution :
Dept. of Electron. & Elec. Eng, Keio Univ., Yokohama, Japan
Abstract :
Summary form only given. A laser pulse is produced from a Ti:sapphire laser based on a chirped-pulse amplification technique. A Michelson interferometer is set before a pulse compressor, and a reflecting mirror in one arm is slanted by 80 /spl mu/rad. Laser pulses are divided into two, and then compressed to have a pulse width of 30 fs. The phase matching is achieved by controlling the medium density to 30 torr. The generated high harmonics are overlapped in the far field, forming an interference pattern.
Keywords :
light interferometers; optical harmonic generation; optical phase matching; optical pulse compression; sapphire; solid lasers; titanium; 30 fs; 30 torr; Gaussian profile; Michelson interferometer; Ti:sapphire laser; beam quality; chirped-pulse amplification; far-field spatial profiles; generated high harmonics; highly coherent high-order harmonic generation; interference pattern; laser pulse; macroscopic phase matching; phase-induced phase mismatch; phase-matched propagation; pulse compressor; reflecting mirror; Frequency conversion; Laser mode locking; Nonlinear optics; Optical frequency conversion; Optical harmonic generation; Optical pulse generation; Optical pulses; Pulse measurements; Ultrafast optics; X-ray lasers;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-662-1
DOI :
10.1109/CLEO.2001.947441
