NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Impact of photo-assisted collisions on superradiant light scattering with Bose-condensates
Published
Author(s)
Lu Deng, Xinyu Luo, Edward W. Hagley, Ruquan Wang, Kuiyi Gao
Abstract
We present experimental evidence supporting the postulation that the secondary effects of light assisted collisions are the main reason that the superradiant light scattering efficiency in condensates is asymmetric with respect to the sign of the pump-laser detuning. In addition, we argue that pump laser polarization-dependent effects can drastically alter the rate of We present experimental evidence supporting the postulation that the secondary effects of light- assisted collisions are the main reason that the superradiant light scattering efficiency in condensates is asymmetric with respect to the sign of the pump-laser detuning. Contrary to recent experimental study, however, we observe severe and comparable heating with all three pump-laser polarizations. We also perform two- color, doublepulse measurements to directly study the degradation of condensate coherence and the resulting impact on the superradiant scattering efficiency.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Deng, L.
, Luo, X.
, Hagley, E.
, Wang, R.
and Gao, K.
(2012),
Impact of photo-assisted collisions on superradiant light scattering with Bose-condensates, Physical Review A (Atomic, Molecular and Optical Physics), [online], https://doi.org/10.1103/PhysRevA.86.043603
(Accessed October 10, 2025)