Ramsey-Bordé matter-wave interferometry for laser frequency stabilization at \(10^{-16}\) frequency instability and below

We demonstrate Ramsey-Bordé (RB) atom interferometry for high performance laser stabilization with fractional frequency instability \(<2 \times 10^{-16}\) for timescales between 10 and 1000s. The RB spectroscopy laser interrogates two counterpropagating \(^{40}\)Ca beams on the \(^1\)S\(_0\) -- \...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Olson, Judith, Fox, Richard W, tier, Tara M, Sheerin, Todd F, Brown, Roger C, Leopardi, Holly, Stoner, Richard E, Oates, Chris W, Ludlow, Andrew D
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 15.07.2019
Subjects
Atom interferometry
Fluorescence
Frequency stability
Frequency stabilization
Interference fringes
Interferometry
Laser beams
Lasers
Shielding
Online AccessGet full text

Cover

More Information
Summary:We demonstrate Ramsey-Bordé (RB) atom interferometry for high performance laser stabilization with fractional frequency instability \(<2 \times 10^{-16}\) for timescales between 10 and 1000s. The RB spectroscopy laser interrogates two counterpropagating \(^{40}\)Ca beams on the \(^1\)S\(_0\) -- \(^3\)P\(_1\) transition at 657 nm, yielding 1.6 kHz linewidth interference fringes. Fluorescence detection of the excited state population is performed on the (4s4p) \(^3\)P\(_1\) -- (4p\(^2\)) \(^3\)P\(_0\) transition at 431 nm. Minimal thermal shielding and no vibration isolation are used. These stability results surpass performance from other thermal atomic or molecular systems by one to two orders of magnitude, and further improvements look feasible.
ISSN:2331-8422
DOI:10.48550/arxiv.1907.06774