Journal
OPTICS LETTERS
Volume 39, Issue 10, Pages 3030-3033Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.39.003030
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Funding
- DARPA Quasar program through ARO [60181-PH-DRP]
- AFOSR [FA9550-12-1-0282]
- NSF [PHY-1104424]
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We have recently shown [Nat. Phys. 8, 819 (2012)] that Alkali atoms contained in a vapor cell can serve as a highly accurate standard for microwave (MW) electric field strength as well as polarization. Here we show for the first time that Rydberg atom electromagnetically induced transparency can be used to imageMW electric fields with unprecedented precision. The spatial resolution of the method is far into the subwavelength regime similar to lambda/650 or 66 mu m at 6.9 GHz. The electric field resolutions are similar to those we have already demonstrated similar to 50 mu V cm(-1). Our experimental results agree with finite element calculations of test electric-field patterns. (C) 2014 Optical Society of America
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