title: Raman lasing and cascaded coherent anti-Stokes Raman scattering of a two-phonon Raman band.
abstract: Raman lasing of a two-phonon Raman band in the anti-Stokes side is demonstrated. Two femtosecond light pulses with identical wavelengths are irradiated onto a SrTiO3 crystal in a cross-beam configuration. Under low excitation power, several wave-mixing signals with identical wavelengths are emitted. When the power exceeds a critical value, cascaded coherent anti-Stokes Raman scattering (CARS) signals are emitted, the frequency step of which is coincident with that of the strongest two-phonon Raman band of 2TO2.
authors.affiliation: Japan Science and Technology Agency (ERATO), Tsukuba, Ibaraki, Japan. takajun@joy.ocn.ne.jp
authors.forename: Takahashi
authors.initials: T
authors.lastname: Jun-ichi
authors.forename: Mano
authors.initials: M
authors.lastname: Keisuke
authors.forename: Yagi
authors.initials: Y
authors.lastname: Toshirou