Optical switching and bistability in four-level atomic systems
نویسندگان
چکیده
منابع مشابه
Controlling optical bistability in a three-level atomic system
We have experimentally studied the optical bistable behavior in an optical ring cavity filled with a collection of three-level L-type rubidium atoms, interacting with two collinearly propagating laser beams. The bistability so observed is very sensitive to the induced atomic coherence in this electromagnetically induced transparency system or consequently to the altered nonlinearity in the syst...
متن کاملControlled shift of optical bistability hysteresis curve and storage of optical signals in a four-level atomic system.
The dependence of the shift of an optical bistability hysteresis curve on the nonlinear phase shift induced by a controlling light is observed in a four-level atomic system of 87 Rb inside an optical ring cavity. In the process the intensity of the coupling beam keeps constant and the atomic system is operated at near conditions of coherent population trapping due to atomic coherence. The refra...
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Stochastic resonance SR is experimentally demonstrated in an atomic optical bistable system consisting of three-level atoms in -type configuration confined in an optical ring cavity. The optical bistable system with enhanced Kerr nonlinearity due to atomic coherence is driven by a periodic signal and a Gaussian white noise source with variable amplitude, and displays an improved output signal-t...
متن کاملMultiplicative noise-induced probability distributions in three-level atomic optical bistability
Effects of multiplicative noise on optical bistability in a three-level atomic medium in a ring cavity are investigated experimentally and theoretically. Steady-state intensity distributions as well as switching and dwell times have been measured as functions of noise strength. System response to an external periodic signal is also explored. It is found that the probability for the system to st...
متن کاملCoherent control of optical bistability in an open Λ-type three-level atomic system
Received June 13, 2012; revised August 17, 2012; accepted August 27, 2012; posted August 28, 2012 (Doc. ID 170277); published September 24, 2012 We analyze the hybrid absorptive-dispersive optical bistability (OB) behavior in an open Λ-type three-level atomic system by using a microwave field to drive the hyperfine transition between two lower states, along with the consideration of incoherent ...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2016
ISSN: 2469-9926,2469-9934
DOI: 10.1103/physreva.94.023851