Pressure control of phase matching in high-order harmonic generation in hollow fibers filled with an absorbing weakly ionizing gas

Journal Article · Fri Jun 01 00:00:00 EDT 2001 · Journal of the Optical Society of America B

DOI:https://doi.org/10.1364/JOSAB.18.000811· OSTI ID:40203226

Naumov, A N; Zheltikov, A M; Fedotov, A B; Sidorov-Biryukov, D A; Tarasevitch, A P; Zhou, Ping; von der Linde, D

High-order harmonic generation in a hollow fiber filled with a weakly ionizing gas is theoretically analyzed within the framework of the slowly varying envelope approximation. The gas pressure that corresponds to maximum efficiency of frequency conversion, the absorption coefficient, the phase mismatch owing to gas dispersion, and the enhancement of harmonic-generation efficiency owing to waveguide phase matching are estimated for 27th-harmonic generation in hollow fibers filled with helium, neon, argon, krypton, or xenon. As a result of the ionization-induced self-phase modulation of the pump pulse in a hollow fiber filled with a weakly ionizing gas, the phase mismatch changes within the pump pulse, decreasing the overall efficiency of harmonic generation and making the harmonic-generation efficiency less sensitive to the gas pressure in the hollow fiber. {copyright} 2001 Optical Society of America

• Sponsoring Organization: (US)
• OSTI ID: 40203226
• Journal Information: Journal of the Optical Society of America B, Vol. 18, Issue 6; Other Information: Othernumber: JOBPDE000018000006000811000001; 006103JOB; PBD: Jun 2001; ISSN 0740-3224
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
ARGON
EFFICIENCY
FIBERS
HARMONIC GENERATION
HELIUM
KRYPTON
MODULATION
NEON
PRESSURE CONTROL
WAVEGUIDES
XENON