Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Differentially detected coherent population trapping resonances excited by orthogonally polarized laser fields

Published

Author(s)

V Shah, Svenja A. Knappe, Michael Rosenbluh, John E. Kitching

Abstract

We demonstrate the excitation and low-noise detection of coherent population trapping (CPT) resonances with two modulated optical fields with orthogonal circular polarizations. When a microwave phase delay of λ/4 is introduced in the optical path of one of the fields, the difference in the power transmitted through the cell in each polarization shows a narrow, dispersive resonance that can be used, for example, to stabilize the frequency of an external oscillator. The differential detection allows a high degree of suppression of laser-induced noise.
Citation
Optics Express
Volume
14
Issue
15

Keywords

atomic clock, coherent population trapping, differential detection, magnetometer, optical pumping

Citation

Shah, V. , Knappe, S. , Rosenbluh, M. and Kitching, J. (2006), Differentially detected coherent population trapping resonances excited by orthogonally polarized laser fields, Optics Express, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50265 (Accessed June 23, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created July 24, 2006, Updated February 17, 2017