We have studied the nonlinear absorption and refractive index in CdTe quantum dots in glass. We find that the nonlinearities differ from those of bulk CdTe. An ultrafast polarization-rotation switch with on-off ratio of 42:1 is demonstrated. We showed that quantum confinement lowers the two-photon absorption coefficient and raises the nonlinear refraction index, both of which are good for all-optical switching devices.
Optical nonlinearities in CdTe quantum-dot doped glass for optical switching
(CLEO). Conference on Lasers and Electro-Optics, 2005. ; 1 ; 651-653 Vol. 1
2005-01-01
418288 byte
Conference paper
Electronic Resource
English
Optical Nonlinearities in CdTe Quantum-Dot Doped Glass for Optical Switching
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