Abstract

We report observation and control of the spatial–spectral distributions of coherent, dynamic Rabi sideband radiation. The Rabi sidebands result from the interaction of a shaped picosecond probe laser of intensity ${10}^{10}\mathrm{W}{\mathrm{cm}}^{-2}$, with neutral excited atomic oxygen generated in a laser-induced microplasma. The spatial–spectral distribution is measured and compared for picosecond laser pulses having either an asymmetric temporal shape or a Gaussian temporal shape. The resulting spatial–spectral distributions are in quantitative agreement with theoretical predictions that account for the radial intensity distribution of the picosecond probe pulse.

© 2011 Optical Society of America

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