Generation of infrared and extreme-ultraviolet radiation in krypton with picosecond irradiation at 193 nm

Journal Article · Tue Nov 01 00:00:00 EST 1988 · J. Opt. Soc. Am. B: Opt. Phys.; (United States)

DOI:https://doi.org/10.1364/JOSAB.5.002386· OSTI ID:6884000

Shahidi, M; Luk, T S; Rhodes, C K

The nonlinear interaction of neutral krypton atoms with picosecond 193-nm radiation with intensities less than or equal to0/sup 13/ W/cm/sup 2/ has been studied. Because of the relatively high intensity of the applied radiation field and the two-photon resonance of the 4p--6p transition, several competing nonlinear processes were observed that result in the generation of coherent radiation. Amplified spontaneous emission (ASE) from the two-photon-resonant level was observed in the IR frequency at /similar to/ ..mu..m. Additionally, a tunable IR wave, in the same frequency range, was generated by stimulated hyper-Raman scattering of the incident laser. The observed self-generated IR waves induced other nonlinear interactions, which resulted in the generation of extreme-ultraviolet (XUV) radiation in the same medium. Tunable XUV frequency was shown to be generated by four-wave sum mixing of the laser and the hyper-Raman wave. Vacuum-ultraviolet frequency was shown to be generated by four-wave oscillation, and other nontunable XUV frequencies resulted from anti-Stokes Raman scattering of the ASE IR waves.

• Research Organization: Laboratory for Atomic, Molecular, and Radiation Physics, Department of Physics, University of Illinois at Chicago, P.O. Box 4348, Chicago, Illinois 60680
• OSTI ID: 6884000
• Journal Information: J. Opt. Soc. Am. B: Opt. Phys.; (United States), Vol. 5:11
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
EXTREME ULTRAVIOLET RADIATION
LIGHT SOURCES
INFRARED RADIATION
KRYPTON
HARMONIC GENERATION
RAMAN EFFECT
ENERGY-LEVEL TRANSITIONS
MULTI-PHOTON PROCESSES
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
FREQUENCY MIXING
GASES
NONMETALS
RADIATION SOURCES
RADIATIONS
RARE GASES
ULTRAVIOLET RADIATION
420300* - Engineering- Lasers- (-1989)