Constructive, Destructive and Differential Detection of Coherent Population Trapping Resonance

SummaryWe propose and demonstrate constructive, destructive and differential detection of coherent population trapping resonance (CDD CPT), in which a CPT dark state is constructively and destructively detected by a bi-chromatic light field with proper polarization and timing setting. Electromagneti...

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Bibliographic Details
Main Authors: Yun, Peter, Yang, Tenghui, Boudot, Rodolphe, De Clercq, Emeric
Format: Conference Proceeding
Language:English
Subjects:
Absorption
coherent population trapping (CPT)
differential detection
electromagnetically induced absorption (EIA)
electromagnetically induced transparency (EIT)
Light fields
Resonant frequency
Sociology
Spectroscopy
Time-frequency analysis
Timing
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Summary:SummaryWe propose and demonstrate constructive, destructive and differential detection of coherent population trapping resonance (CDD CPT), in which a CPT dark state is constructively and destructively detected by a bi-chromatic light field with proper polarization and timing setting. Electromagnetically induced transparency (EIT) and electromagnetically induced absorption (EIA) resonances are simultaneously observed in a vapor cell. A differential-CPT (diff-CPT) signal, with doubled amplitude and suppression of common-mode noise of light and of the atomic ensemble, is then obtained by subtracting EIT and EIA resonances. This approach might be of great interest for the development of high-performance atomic clocks, sensors, or high-resolution spectroscopy.
ISSN:2327-1949
DOI:10.1109/EFTF/IFCS57587.2023.10272194