Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optics Communications

A new kind of heterodyne measurement of coherent population trapping in an atomic beam

G Müller, Andreas Wicht, R.-H. Rinkleff, K. Danzmann

Published Jun 1, 1996• 38 citations
Publisher
DOI
10.1016/0030-4018(96)00134-4

Related papers

Collimation of Atomic Beams Under Coherent Population Trapping

D.V. Kolsachjov, Boris G. Matisov, Yu. Rozhdestvensky +2 more

•Jan 1, 1992•0 citations

Subkilohertz linewidths measured by heterodyne-detected coherent population trapping in sodium vapor

Koji Motomura, 隆典 越水, Ken-ichi Harada +2 more

Subkilohertz spectroscopy by coherent population trapping (CPT) has been performed in Na atomic vapor. The system employs a frequency-swept acousto-optic modulator for bichromatic excitation as well as a heterodyne-lock-in detection technique that permits the direct measurement of the CPT dispersion curves at a good signal-to-noise ratio. A CPT linewidth of -400 Hz was measured as well as a steep refractive-index dispersion of as much as 3.3 x 10(-10) Hz(-1), corresponding to a group velocity of 1800 m/s.

Optics Letters•May 14, 2004•10 citations

COHERENT TRAPPING OF THE ATOMIC POPULATION

WORLD SCIENTIFIC eBooks•Jul 1, 1998•0 citations

Polarization orthogonalizer for a pair of laser beams with nearly equal frequencies

Sin Hyuk Yim, Tai Hyun Yoon, D. Cho

We have demonstrated a device to produce an overlapping pair of orthogonally polarized laser beams with a 3 GHz frequency offset out of a single laser beam containing the two frequency components with the same linear polarization. Our design is based on a Michelson interferometer formed by a polarizing beam splitter and two quarter-waveplates. Such a device can be used to make the polarization states of a carrier and a sideband produced through modulation mutually orthogonal. An orthogonally polarized pair of coherent laser beams can be used for an interferometric measurement of a small displacement in a heterodyne scheme or to produce a large-contrast coherent population trapping signal from alkali metal atoms. As a demonstration we used the device to achieve 40% contrast for a coherent population trapping signal from a rubidium vapor cell.

Review of Scientific Instruments•Dec 1, 2008•13 citations

Coherent trapping of the atomic population in a noncollinear-wave field

Yu. V. Rozhdestvenskiǐ

Optics and Spectroscopy•Jan 1, 1991•0 citations

Coherent population trapping and Ramsey interrogations in a cold atomic beam apparatus

G. S. Pati, Renu Tripathi, Gustavo Acosta +1 more

We are investigating coherent population trapping (CPT) and Ramsey-CPT interrogations in a cold atom system where the atomic beam originates from a pushed two-dimensional magneto-optical trap (2D+-MOT). Our results show promise for improving the performance of atomic clock using a cold atomic beam apparatus.

Optical and Quantum Sensing and Precision Metrology II•Mar 13, 2024•0 citations
Subkilohertz spectroscopy by coherent population trapping (CPT) has been performed in Na atomic vapor. The system employs a frequency-swept acousto-optic modulator for bichromatic excitation as well as a heterodyne-lock-in detection technique that permits the direct measurement of the CPT dispersion curves at a good signal-to-noise ratio. A CPT linewidth of -400 Hz was measured as well as a steep refractive-index dispersion of as much as 3.3 x 10(-10) Hz(-1), corresponding to a group velocity of 1800 m/s.
We have demonstrated a device to produce an overlapping pair of orthogonally polarized laser beams with a 3 GHz frequency offset out of a single laser beam containing the two frequency components with the same linear polarization. Our design is based on a Michelson interferometer formed by a polarizing beam splitter and two quarter-waveplates. Such a device can be used to make the polarization states of a carrier and a sideband produced through modulation mutually orthogonal. An orthogonally polarized pair of coherent laser beams can be used for an interferometric measurement of a small displacement in a heterodyne scheme or to produce a large-contrast coherent population trapping signal from alkali metal atoms. As a demonstration we used the device to achieve 40% contrast for a coherent population trapping signal from a rubidium vapor cell.