Title:	Phase-sensitive microwave optical double resonance in an N system
Authors:	Preethi, T.M. Manukumara, M. Asha, K. Vijay, J. Roshi, Anish D. Narayanan, Andal
Keywords:	Electromagnetically Induced Transparency Nonlinearities Transitions States Light Field
Issue Date:	Aug-2011
Publisher:	EPL Association
Citation:	Europhysics Letters, 2011, Vol.95, p34005
Abstract:	An experimental investigation of a Microwave Optical Double Resonance (MODR) phenomenon is carried out in a four level N system of (85)Rb atoms, at room temperature. This N system consists of a closed three level. subsystem irradiated with two optical fields and one microwave field. The MODR response is investigated in a separate probe field which drives a resonant transition from one of the ground states of the. system to a fourth level. We find that, under two-photon resonance condition for the optical fields, the MODR becomes a function of the relative phase between the beat frequency envelop of the optical fields and the microwave field. The variation in MODR is shown to be correlated with the phase-sensitive variation of the EIT phenomenon seen in such microwave-connected closed. systems. We envisage that this phase-sensitive variation in the MODR, can be utilized for a phase-sensitive manipulation of non-linear optical phenomena in N systems.
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/4100
ISSN:	0295-5075 1286-4854 (Online)
Alternative Location:	http://dx.doi.org/10.1209/0295-5075/95/34005
Copyright:	2011 EPL Association
Appears in Collections:	Research Papers (LAMP)

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