Joshua E. Rothenberg
Optics Letters
We have observed polarization beats by simultaneously exciting both the D1 (589.6-nm) and the D2 (589-nm) lines of sodium in a vapor with a 0.4-psec resonant laser pulse. This impact excitation of both D lines produces two oscillating macroscopic polarizations, which interfere with each other and procedure a beat note at their difference frequency in the intensity of the light emitted from the cell. The beat period of 1.9 psec is the fastest ever observed optically. © 1985, Optical Society of America.
Joshua E. Rothenberg
Optics Letters
Joshua E. Rothenberg, D. Grischkowsky, et al.
IQEC 1984
Joshua E. Rothenberg
Optics Letters
Joshua E. Rothenberg, Roger Kelly
Nuclear Inst. and Methods in Physics Research, B