High-contrast dark resonances in s+ -s- optical field

Published

October 1, 2004

Author(s)

S. Kargapoltsev, John Kitching, Leo W. Hollberg, A. V. Taichenachev, V L. Velichanski, V. I. Yudin

Abstract

For application to atomics clocks, it is important to have large amplitude and small width of the CPT resonance. In this paper, we show that the contrast and amplitude of the dark resonance can be significantly increased in a miniature buffer gas cell by the use of a sigma _+-sigma d- field configuration and excitation of Dl line of alkali-metal atoms. First experiments carried out with Cs vapor confmn the theoretical predictions and show that the contrast of the resonance in the CPT-based chip-scale atomic clock can be greatly increased with only minor design modifications of the device.

Citation

Laser Physics Letters

Volume

1

Issue

10

Pub Type

Journals

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Keywords

atomic clock, chip-scale, coherent population trapping, compact, frequency reference, MEMS, micromachining

Citation

Kargapoltsev, S. , Kitching, J. , Hollberg, L. , Taichenachev, A. , Velichanski, V. and Yudin, V. (2004), High-contrast dark resonances in s+ -s- optical field, Laser Physics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50033 (Accessed October 28, 2025)