Optimizing high-harmonic-generation in absorbing gases

Author

Constant, Eric ; Mevel, E. ; Salin, F. ; Garzella, D. ; Breger, P. ; Agostini, Philippe ; Dorrer, Ch. ; Le Blanc, C.

Author_Institution

Centre de Phys. Moleculaire Optique et Hertzienne, Bordeaux I Univ., Talence, France

fYear

1992

fDate

23-28 May 1992

Firstpage

153

Lastpage

154

Abstract

Summary form only given. The efficiency of high-harmonic-generation (HHG) depends on the single atom response, on phase matching and on defocusing of the fundamental laser beam. The single atom response can be optimized and, in the loose focus/short pulse regime, phase matching can be achieved. Self defocusing is prevented here by using short pulses. As high harmonics can now coherently built up over long interaction lengths, we show that re-absorption of the harmonics by the emitting gas becomes a major limitation for HHG.

Keywords

laser beams; light absorption; optical harmonic generation; optical self-focusing; optimisation; absorbing gases; defocusing; emitting gas; fundamental laser beam; high-harmonic-generation optimisation; long interaction lengths; phase matching; short pulses; single atom response; Charge carrier processes; Charge coupled devices; Copper; Crystallization; Gallium arsenide; Gases; Optical pulse generation; Spectroscopy; X-ray diffraction; X-ray lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-576-X

Type

conf

DOI

10.1109/QELS.1999.807459

Filename

807459