Correlation spectroscopy with squeezed light

V. V. Batygin; D. V. Kupriyanov; I. M. Sokolov

doi:10.1117/12.239843

6 May 1996 Correlation spectroscopy with squeezed light

V. V. Batygin, D. V. Kupriyanov, I. M. Sokolov

Proceedings Volume 2799, Atomic and Quantum Optics: High-Precision Measurements; (1996) https://doi.org/10.1117/12.239843
Event: International Conference on Coherent and Nonlinear Optics, 1995, St. Petersburg, Russian Federation

Abstract

We have discussed the possibilities of correlation spectroscopy (light beating spectroscopy) technique if squeezed light is used as a probe radiation for medium monitoring. The dispersion of the fluctuation of photocurrent spectrum measured in this method is expressed in terms of fourth order photocurrent correlation function. This correlation function is considered and evaluated in assumptions of photodetection theory developed by Glauber in first nonvanishing orders in interaction of probe light with the atoms of a photodetector. We show that fourth order correlation function is determined by all field TN-ordered amplitude correlation functions up to the fourth order. In case of heterodyne detection, when the light incident on photodetector surface is the mix of strong coherent modes of local oscillator wave and weak non-coherent (squeezed) modes, the observable (photocurrent spectrum) as well as its fluctuation (noise of photocurrent spectrum) is expressed in terms of spectrum-dependent Mandel parameter. We have discussed possible improvement of sensitivity limit for correlation spectroscopy in this case.

Citation Download Citation

V. V. Batygin, D. V. Kupriyanov, and I. M. Sokolov "Correlation spectroscopy with squeezed light", Proc. SPIE 2799, Atomic and Quantum Optics: High-Precision Measurements, (6 May 1996); https://doi.org/10.1117/12.239843

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