Femtosecond pulse propagation near a two-photon transition in a semiconductor quantum-dot waveguide.
We have studied femtosecond pulse propagation in CdS quantum-dot-doped waveguides produced by the solgel and ion-exhange methods. The observed two-photon absorption and asymmetric spectral modulation of the transmitted pulses are explained by our theoretical model, which incorporates a near-resonant two-photon transition.
Guerreiro
P T
PT
Lee
S G
SG
Rodrigues
A S
AS
Hu
Y Z
YZ
Wright
E M
EM
Najafi
S I
SI
Mackenzie
J
J
Peyghambarian
N
N