Direct single-shot observation of millimeter-wave superradiance in Rydberg-Rydberg transitions
Name
PRA_95_p043818.pdf
Size
656.07 KB
Format
Adobe PDF
Checksum (MD5)
5340c5f781d5cae55a9987542b4dcb89
Author(s)
Zhou, Yan
Yelin, Susanne F.
Grimes, David Darrah
Coy, Stephen
Barnum, Timothy James
Field, Robert W
Date Issued
April 2017
Journal
Physical Review A
Publisher
American Physical Society
Citation
Grimes, David D. et al. “Direct Single-Shot Observation of Millimeter-Wave Superradiance in Rydberg-Rydberg Transitions.” Physical Review A 95, 4 (April 2017): 043818 ©2017 American Physical Society
Version
Final published version
Abstract
We have directly detected millimeter-wave (mm-wave) free-space superradiant emission from Rydberg states (principal quantum number n∼30) of barium atoms in single-shot experiments. We trigger the cooperative effects with a weak initial pulse and detect the time-dependent amplitude and phase of the emitted radiation with single-shot sensitivity and 20 ps time resolution. This allows measurement and shot-by-shot analysis of the statistical distribution of decay rates, time delays, and time-dependent frequency shifts. Cooperative line shifts and decay rates are observed that exceed the 250 kHz Doppler width by a factor of 20 and the 50 Hz spontaneous emission rate by a factor of 10⁵.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevA.95.043818
