Work

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

Year: 2006

Type: article

Abstract: We demonstrate the excitation and low-noise differential detection of a coherent population trapping (CPT) resonance with two modulated optical fields with orthogonal circular polarizations. When a microwave phase delay of lambda/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. The differential detection allows a high degree of suppression of laser-induced noise and will enable nearly shot-noise-limited operation of atomic frequency references and magnetometers based on CPT.

Source: Optics Express

DOI: 10.1364/oe.14.006588

Authors: Michael Rosenbluh, Vishal Shah, Svenja Knappe, John Kitching

Institutions: Bar-Ilan University, University of Colorado Boulder, National Institute of Standards and Technology

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: Defense Advanced Research Projects Agency