Abstract
Computational results show that the conical emission and Rabi sidebands observed when a nearly resonant laser pulse propagates through an atomic vapor are the result of pulse breakup into temporal-spatial (2-D) solitary waves. The temporal modulation associated with pulse breakup appears as Rabi sidebands in the spectrum. Because the process of pulse breakup depends on the pulse area, the 2-D solitary waves are curved in the time-radius plane due to the transverse profile of the pulse. The curvature of the solitary waves in the time-radius plane results in a transverse spatial oscillation and a corresponding transverse wave vector that leads to conical emission in the far field.
© 1989 Optical Society of America
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