Atomic spectroscopy with squeezed light
Squeezed light employed in atomic physics and spectroscopy provides measurement precision beyond the quantum limit and causes a variety of dramatic changes in atomic dynamics as predicted in numerous theoretical works. We have built a source delivering light with 6 dB of stable observed squeezing with frequency tunability of two GHz around Cs resonance transition. Using this source in FM spectroscopy we have demonstrated about 4dB enhancement in the sensitivity of a weak atomic absorption measurement beyond the limit set by the shot noise. The potential tunability range of 850-1050 nm in the degenerate case and even broader tunability in the nondegenerate case suggests a variety of applications in atomic physics. Our progress in investigation of a two-photon excitation process with quantum correlated photons of squeezed light will be reported. Other perspectives will be reviewed, including altering atomic dissipation processes by squeezed light in free space and in cavities and using this nonclassical light as a driving field for a three level atom.
- OSTI ID:
- 281280
- Report Number(s):
- CONF-9305421-; ISSN 0003-0503; TRN: 96:019205
- Journal Information:
- Bulletin of the American Physical Society, Vol. 38, Issue 3; Conference: 1993 American Physical Society annual meeting on atomic, molecular, and topical physics, Reno, NV (United States), 16-19 May 1993; Other Information: PBD: May 1993
- Country of Publication:
- United States
- Language:
- English
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