Title :
Near cutoff behaviors of high-order harmonic generation from molecular gases
Author :
Bing Shan ; Chun Wang ; Zenghu Chang
Author_Institution :
Dept. of Phys., Kansas State Univ., Manhattan, KS, USA
Abstract :
The near cutoff behaviors of high-order harmonic generation (HHG) from molecular gases is investigated. Results reveal that harmonic cutoff is extended only for molecules that show ionization suppression. Another interesting result is that the HHG intensity drops slower in N/sub 2/ and O/sub 2/, while in Ar there is a sharp drop at the cutoff. This phenomena could be induced by the molecule orientation in the laser field.
Keywords :
argon; molecular orientation; nitrogen; optical harmonic generation; oxygen; photoionisation; Ar; N/sub 2/; O/sub 2/; harmonic cutoff; high-order harmonic generation; ionization suppression; laser field; molecular gases; molecule orientation; near cutoff behaviors; Argon; Frequency conversion; Gas lasers; Gases; Ionization; Laser beam cutting; Laser theory; Physics; Power harmonic filters; Pulse measurements;
Conference_Titel :
Quantum Electronics and Laser Science, 2003. QELS. Postconference Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-749-0
DOI :
10.1109/QELS.2003.238156
