Enhanced Kerr nonlinearity in a four-level EIT medium
M Sahrai, SH Asadpour, R Sadighi - Journal of Nonlinear Optical …, 2010 - World Scientific
M Sahrai, SH Asadpour, R Sadighi
Journal of Nonlinear Optical Physics & Materials, 2010•World ScientificThe linear and nonlinear response of a four-level EIT system driven by three coherent fields
is investigated. It is found that at appropriate atomic parameters, the Kerr nonlinearity can
clearly be enhanced. It is also demonstrated that the maximal Kerr nonlinearity enters the
EIT window, and the corresponding linear and nonlinear absorption suppress. Moreover, we
show that nonlinear absorption and Kerr nonlinearity can also be changed via relative
phase between driving fields.
is investigated. It is found that at appropriate atomic parameters, the Kerr nonlinearity can
clearly be enhanced. It is also demonstrated that the maximal Kerr nonlinearity enters the
EIT window, and the corresponding linear and nonlinear absorption suppress. Moreover, we
show that nonlinear absorption and Kerr nonlinearity can also be changed via relative
phase between driving fields.
The linear and nonlinear response of a four-level EIT system driven by three coherent fields is investigated. It is found that at appropriate atomic parameters, the Kerr nonlinearity can clearly be enhanced. It is also demonstrated that the maximal Kerr nonlinearity enters the EIT window, and the corresponding linear and nonlinear absorption suppress. Moreover, we show that nonlinear absorption and Kerr nonlinearity can also be changed via relative phase between driving fields.
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