NDLI: Higher-order squeezing and sub-poissonian photon statistics in CARS and CAHRS

Content Provider	Springer Nature Link
Author	Giri, D. K. Gupta, P. S. Mahan, M. K. Prasad, Ajay
Copyright Year	2011
Abstract	The Squeezing and sub-poissonian photon statistics of an optical field are a purely quantum mechanical phenomenon and has been accepted as means of achieving noise below the quantum shot-noise limit. The effect of higher-order squeezing and sub-poissonian nature of an optical field in coherent anti-Stokes Raman scattering (CARS) and coherent anti-Stokes hyper Raman scattering (CAHRS) are investigated under short-time approximation. The coupled Heisenberg equations of motion involving real and imaginary parts of the quadrature operators are established and solved under short-time scale. The dependence of squeezing on the number of photons is also investigated. It is also shown that higher-order squeezing allows a much larger fractional noise reduction than lower-order squeezing. The occurrence of amplitude squeezing effects of the radiation field in the fundamental mode is investigated in both the processes. The present work shows that squeezing is greater in CAHRS than the corresponding squeezing in CARS. It is also shown that squeezing is greater in stimulated process than corresponding squeezing in spontaneous interaction. The conditions for obtaining maximum and minimum squeezing are obtained. The photon statistics of the pump mode in the processes has also been investigated and found to be sub-poissonian in nature.
Starting Page	215
Ending Page	229
Page Count	15
File Format	PDF
ISSN	03068919
Journal	Optical and Quantum Electronics
Volume Number	42
Issue Number	4
e-ISSN	1572817X
Language	English
Publisher	Springer US
Publisher Date	2011-03-31
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Higher-order Squeezing of radiation Sub-poissonian photon statistics CARS CAHRS Photon-number operator Optics, Optoelectronics, Plasmonics and Optical Devices Characterization and Evaluation of Materials Computer Communication Networks Electrical Engineering
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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