Third-harmonic generation with no signal at 3{omega}
- Physics Department, International Laser Center, M. V. Lomonosov Moscow State University, 119992 Moscow (Russian Federation)
Phase matching of a spectrally broadened pump pulse and its group-velocity-mismatched third harmonic gives rise to a frequency-shifted peak, dominating the spectrum of the third harmonic, with no signal produced at the frequency 3{omega}{sub 0},{omega}{sub 0} being the carrier frequency of the pump field. The central frequency of this peak, controlled by the phase and group-velocity mismatch of the pump and third-harmonic pulses, as well as the spectral broadening of the pump field, may considerably deviate from the frequency 3{omega}{sub 0}, dictated by the standard energy-conservation relation for third-harmonic generation. This non-3{omega} third-harmonic generation is shown to result in interesting and practically significant spectral-transformation phenomena in photonic-crystal fibers.
- OSTI ID:
- 20718804
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 72; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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