PENZKOFER, A and BEIDOUN, A and LEHMEIER, HJ (1993) SPECTRAL SUPERBROADENING OF SELF-FOCUSED PICOSECOND LASER-PULSES IN D2O. OPTICAL AND QUANTUM ELECTRONICS, 25 (5). pp. 317-349. ISSN 0306-8919, 1572-817X
Full text not available from this repository.Abstract
Intense picosecond light pulses of a mode-locked Nd : glass laser at lambda(L) = 1054 nm (fundamental wavelength) and lambda(SH) = 527 nm (second harmonic wavelength) are passed through a sample of D2O under self-focusing conditions. Spectrally structured superbroadened, spatially bell-shaped emission in the forward direction is obtained. Primary generation processes are pump-pulse-degenerate stimulated parametric four-photon interaction (omega1 + omega1 --> omega3 + omega4) and stimulated Raman scattering (omega1 --> omega(R) + omega(upsilon)), which occur concurrently (omega1 = omega(L) or omega(SH) angular pump frequency, omega(R) = first Stokes frequency, omega(upsilon) = vibrational frequency, omega3 = signal frequency, omega4 = idler frequency). The parametric four-photon interaction occurs under collinear non-phase-matched conditions and under longitudinally phase-matched, transversally non-phase-matched (Cerenkov-like) conditions. Subsequent interaction processes are pump-pulse-nondegenerate four-photon interaction of the type omega1 + omega(R) --> omega3' + omega4', coherent antiStokes Raman scattering (CARS, oemga1 + omega1 -omega4 --> omega3), inverse Raman scattering (omega(A) --> omega1 + omega(upsilon)), and cascading light up-conversion of the type omega1 + omega(i) - omega(R) --> omega(i + 1).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | STIMULATED RAMAN-SCATTERING; SUPERCONTINUUM GENERATION; CONICAL EMISSION; OPTICAL FIBERS; CERENKOV-RADIATION; PHASE MODULATIONS; ULTRASHORT PULSES; LIGHT CONTINUA; MU-M; GLASS; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/53985 |
Actions (login required)
 |
View Item |
