학술논문
Investigating electromagnetically induced transparency spectral lineshape distortion due to non-uniform fields in Rydberg-atom electrometry.
Document Type
Article
Author
Rotunno, Andrew P.; Holloway, Christopher L.; Prajapati, Nikunjkumar; Berweger, Samuel; Artusio-Glimpse, Alexandra B.; Brown, Roger; Simons, Matthew; Robinson, Amy K.; Kayim, Baran N.; Viray, Michael A.; Jones, Jasmine F.; Sawyer, Brian C.; Wyllie, Robert; Walker, Thad; Ziolkowski, Richard W.; Jefferts, Steven R.; Geibel, Steven; Wheeler, Jonathan; Imhof, Eric
Source
Subject
*BEER-Lambert law
*ATOMIC spectra
*SPECTRAL lines
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Language
ISSN
0021-8979
Abstract
We investigate the effects of spatially non-uniform radio-frequency electric (E) field amplitudes on the spectral line shapes of electromagnetically induced transparency (EIT) signals in Rydberg atomic systems used in electrometry (i.e., the metrology of E-field strengths). Spatially non-uniform fields distort the EIT spectra from that of an ideal case, and understanding this distortion is important in the development of Rydberg atom-based sensors, as these distortions can limit accuracy and sensitivity. To characterize this distortion, we present a model that approximates the atom vapor as multi-layered media and then uses Beer's law to combine the absorption through its many discrete thin segments. We present a set of expected line distortions caused by various RF electric-field distributions found in practice. This provides an intuitive diagnostic tool for experiments. We compare this model to measured experimental atomic spectra in both two-photon and three-photon excitation schemes in the presence of non-uniform radio-frequency fields. We show that we can accurately model and reproduce the EIT lineshape distortion observed in these experimental data. [ABSTRACT FROM AUTHOR]