Femtosecond pulse propagation near a two-photon transition in a semiconductor quantum-dot waveguide
- 1 May 1996
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 21 (9) , 659-661
- https://doi.org/10.1364/ol.21.000659
Abstract
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.Keywords
This publication has 11 references indexed in Scilit:
- Third-order nonlinearity of semiconductor doped glasses at frequencies below band gapApplied Physics Letters, 1995
- CdS quantum dot materials by the sol-gel methodPublished by SPIE-Intl Soc Optical Eng ,1994
- Two-photon absorption in semiconductor-doped glassesJournal of the Optical Society of America B, 1993
- Below-band-gap third-order optical nonlinearity of nanometer-size semiconductor crystallitesPhysical Review Letters, 1992
- Confinement-induced valence-band mixing in CdS quantum dots observed by two-photon spectroscopyPhysical Review B, 1992
- Optical nonlinearities in CdSxSe_1-x-doped glass waveguidesJournal of the Optical Society of America B, 1989
- Quantum confinement effects of semiconducting microcrystallites in glassJournal of Applied Physics, 1987
- Energy band-gap dependence of two-photon absorptionOptics Letters, 1985
- Degenerate four-wave mixing in semiconductor-doped glassesJournal of the Optical Society of America, 1983
- Adiabatic following model for two-photon transitions: Nonlinear mixing and pulse propagationPhysical Review A, 1975