Abstract
This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).
The presence of multiple bipartite entangled modes in squeezed states generated by four-wave mixing enables ultra-trace sensing, imaging, and metrology applications that are impossible to achieve with single-spatial-mode squeezed states. For Gaussian seed beams, the spatial distribution of these bipartite entangled modes, or coherence areas, across each beam is largely dependent on the spatial modes present in the pump beam, but it has proven difficult to map the distribution of these coherence areas in frequency and space. We demonstrate an accessible method to map the distribution of the coherence areas within these twin beams. We also show that the pump shape can impart different noise properties to each coherence area, and that it is possible to select and detect coherence areas with optimal squeezing with this approach.
Original language | English |
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Pages (from-to) | 989-994 |
Number of pages | 6 |
Journal | Journal of Modern Optics |
Volume | 63 |
Issue number | 10 |
DOIs | |
State | Published - May 30 2016 |
Funding
Acknowledgements This work was supported in part by the U.S. Department of Energy, Office of Science, Office ofWorkforce Development for Teachers and Scientists (WDTS) under the SULI program. B.L. and R.C.P acknowledge support from the Laboratory Directed Research and Development program.
Keywords
- coherence areas
- quantum optics
- squeezed states