Title :
Fine spectral structure of high order harmonics generated by multi-terawatt femtosecond lasers focused to gas jet targets
Author :
Ogura, Kanayo ; Kando, M. ; Esirkepov, T.Zh. ; Pikuz, T.A. ; Faenov, A.Ya. ; Hayashi, Yasuhiro ; Kotaki, Hideyuki ; Ragozin, E.N. ; Neely, David ; Kiriyama, H. ; Shimomura, Takaaki ; Tanoue, M. ; Nakai, Yoko ; Okamoto, Mitsuo ; Kondo, Satoshi ; Kanazawa,
Author_Institution :
Adv. Beam Technol. Div., Japan Atomic Energy Agency, Kizugawa, Japan
fDate :
June 30 2013-July 4 2013
Abstract :
We measured high-resolution spectra of high-order harmonics generated in the interaction of relativistic-irradiance (>1018 W/cm2) multi-terawatt femtosecond lasers with gas jets. The spectra exhibit very fine structures on the sub-eV scale, indicating temporal coherence of a few tens of femtoseconds.
Keywords :
high-speed optical techniques; light coherence; optical harmonic generation; fine spectral structure; gas jet targets; high order harmonics; high-resolution spectra; multiterawatt femtosecond lasers; relativistic-irradiance; temporal coherence; very fine structures; Atom lasers; Gas lasers; Harmonic analysis; Laser theory; Measurement by laser beam; Photonics; Power harmonic filters;
Conference_Titel :
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on
Conference_Location :
Kyoto
DOI :
10.1109/CLEOPR.2013.6600032
