TY - JOUR
T1 - Electronically-induced-transparency-enhanced Kerr nonlin- earity: Beyond steady-state treatment
T2 - Beyond steady-state treatment
AU - Deng, L.
AU - Payne, M. G.
AU - Garrett, W. R.
PY - 2001/7/9
Y1 - 2001/7/9
N2 - A time-dependent perturbation calculation for a four-level system is presented. A resonantly enhanced Kerr nonlinearity is produced with a combination of long, short, and delayed laser pulses in the presence of electromagnetically induced transparency. We show the enhanced Kerr nonlinearity and vanishingly small linear susceptibility due to the induced transparency, both are favorable for cross-phase modulation. In addition, we show that possible constructive and destructive interference between different excitation pathways could also lead to enhancement and suppression of the Kerr nonlinearity.
AB - A time-dependent perturbation calculation for a four-level system is presented. A resonantly enhanced Kerr nonlinearity is produced with a combination of long, short, and delayed laser pulses in the presence of electromagnetically induced transparency. We show the enhanced Kerr nonlinearity and vanishingly small linear susceptibility due to the induced transparency, both are favorable for cross-phase modulation. In addition, we show that possible constructive and destructive interference between different excitation pathways could also lead to enhancement and suppression of the Kerr nonlinearity.
UR - http://www.scopus.com/inward/record.url?scp=0035435499&partnerID=8YFLogxK
UR - https://digitalcommons.georgiasouthern.edu/physics-facpubs/182
UR - https://doi.org/10.1103/PhysRevA.64.023807
U2 - 10.1103/physreva.64.023807
DO - 10.1103/physreva.64.023807
M3 - Article
AN - SCOPUS:0035435499
SN - 1050-2947
VL - 64
SP - 1
EP - 8
JO - Physical Review A
JF - Physical Review A
IS - 2
M1 - 023807
ER -