Ultrahigh-frequency interference beats in transient, incoherent-light four-wave mixing
- 1 July 1986
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 11 (7), 431-433
- https://doi.org/10.1364/ol.11.000431
Abstract
An angled-beam, transient four-wave mixing experiment is described in which nanosecond-duration, broad-bandwidth excitation pulses are employed to measure picosecond collisional dephasing and subpicosecond interference beats in atomic Rb vapor. The 7.2-THz interference beat, which corresponds to a 237 cm−1 Rb fine-structure splitting, is apparently the fastest material-specific beat yet observed. We discuss practical limitations on the time resolution attainable with this technique and propose means of circumventing them by using broad-bandwidth collinear excitation beams and an angled narrow-bandwidth probe.Keywords
This publication has 11 references indexed in Scilit:
- Studies of picosecond collisional dephasing in atomic sodium vapor using broad-bandwidth transient four-wave mixingJournal of the Optical Society of America B, 1986
- Broadband excitation and inhomogeneous broadening in photon-echo experimentJournal of the Optical Society of America B, 1986
- Ultrafast Modulation SpectroscopyPhysical Review Letters, 1986
- Three-pulse scattering for femtosecond dephasing studies: theory and experimentJournal of the Optical Society of America B, 1985
- Subpicosecond photon echoes by using nanosecond laser pulsesOptics Communications, 1984
- Ultrahigh-time-resolution coherent transient spectroscopy with incoherent lightPhysical Review A, 1984
- Accumulated photon echoes with incoherent light in-doped silicate glassPhysical Review A, 1984
- Folded BOXCARS for rotational Raman studiesOptics Letters, 1980
- Collisional relaxation of atomic excited states, line broadening and interatomic interactionsPhysics Reports, 1980
- Echoes in gaseous media: A generalized theory of rephasing phenomenaPhysical Review A, 1979