Manipulating the phase of a single-mode micromaser by polarized
three-level atoms |
| |
Authors: | W-H Sun S-D Du X-S Chen |
| |
Institution: | (1) Department of Physics, Fudan University, Shanghai, 200433, P.R. China;(2) National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu-Tian Road, Shanghai, 200083, P.R. China |
| |
Abstract: | We investigate the phase probability distribution (PPD) of a single-mode
micromaser pumped by atoms injected in the most general case, i.e. in the
superposition of the upper, intermediate and lower states by the Monte
Carlo wave function approach. The phase properties of the cavity mode are
greatly influenced by the relative phases and the amplitudes of the
polarized atoms, and the detunings between the atom and cavity. The cavity
field has a single preferred phase if the cavity is pumped by the atoms in
the superposition of the upper and intermediate states or of the
intermediate and lower states. However, a double-peak feature appears in the
PPD of the cavity field when the cavity is pumped by the atoms in the
superposition of the upper and lower states. With appropriate detunings, the
double peaks become narrower and more remarkable, which shows the better
defined phase of the cavity field, as compared to the resonant case. The PPD
displays complicated characteristics when the cavity is pumped by the atoms
in the superposition of the upper, intermediate and lower states. The phase
distribution changes from a single peak to double peaks and to another
single peak when we modulate the phase of the intermediate state, which has
been explained in the semi-classical radiation theory. |
| |
Keywords: | 42 50 Pq Cavity quantum electrodynamics micromasers 42 50 Ar Photon statistics and coherence theory 42 50 Gy Effects of atomic coherence on propagation absorption and amplification of light electromagnetically induced transparency and absorption |
本文献已被 SpringerLink 等数据库收录! |
|