paper

Two photon absorption and coherent control with broadband down-converted light

arXiv:quant-ph/0401088 · doi:10.1103/PhysRevLett.93.023005

Abstract

We experimentally demonstrate two-photon absorption (TPA) with broadband down-converted light (squeezed vacuum). Although incoherent and exhibiting the statistics of a thermal noise, broadband down-converted light can induce TPA with the same sharp temporal behavior as femtosecond pulses, while exhibiting the high spectral resolution of the narrowband pump laser. Using pulse-shaping methods, we coherently control TPA in Rubidium, demonstrating spectral and temporal resolutions that are 3-5 orders of magnitude below the actual bandwidth and temporal duration of the light itself. Such properties can be exploited in various applications such as spread-spectrum optical communications, tomography and nonlinear microscopy.

5 pages, 3 figures, submitted to Phys. Rev. Lett

Cited by in corpus (74)