Suppression of photon fluctuations in the coherent radiation of a cw laser

John E. Bjorkholm, Richard R. Freeman, Arthur Ashkin +1 more

We experimentally demonstrate that quantum fluctuations of the photon–atom interaction have a limiting influence on the focusing of neutral atomic beams by the dipole resonance-radiation pressure of a superimposed and co-propagating cw laser beam.

K. V. Vladimirskii, A. A. Norvaishas

A. P. Kazantsev

Н. Н. Рубцова, Решетов Владимир Александрович, Хворостов Евгений Борисович

Possibilities for the control of the parameters of free-polarization decay (FPD), optical nutation, and photon echo (PE) using the dressing field are studied. Coherent transients are generated with the Stark switching technique and are detected in the radiation of the probe field polarized orthogonally to the dressing field. The evolution-operator technique is employed in the calculations. The experiments are performed at the R (4, 3) transition of the 0 ↔ 1 v 3 13 CH 3 F vibrational band with the radiation of a cw CO 2 laser. It is theoretically and experimentally demonstrated that FPD and PE are suppressed upon an increase in the intensity of the dressing field. The observed shapes of the transient FPD and PE signals and their variations with the dressing field intensity are in qualitative agreement with the results of the calculations.

Horace P. Yuen

V. T. Nguyen, E. G. Burkhardt

We have succeeded in generating cw laser sidebands at wavelengths tunable from ∼5.5 to ∼6.5 μm. The behavior of the power output of the generated radiation is described quantitatively by using the equivalence between four-photon mixing and Raman scattering from coherent spin motion in a spin-flip Raman laser.