Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Biexcitonic fingerprint in the nondegenerate four-wave-mixing signal of weakly confined cadmium sulfur quantum dots

Not Accessible

Your library or personal account may give you access

Abstract

Nondegenerate four-wave mixing is analyzed with respect to biexcitonic contributions in the third-order nonlinear susceptibility χ3. The presence of biexcitons causes a distinct asymmetry in the frequency dependence of self-diffraction. By measurement of the dependence of the intensity of the self-diffracted signal on detuning between the two incident laser beams, the biexciton binding energy is determined to be EXX=7.8 meV for cadmium sulfur quantum dots of R=7.5 nm embedded in glass. Thus, even for weakly confined II–VI quantum dots with R2.7aB, a confinement-induced enhancement of EXX was found.

© 1998 Optical Society of America

Full Article  |  PDF Article
More Like This
Coherent response of individual weakly confined exciton–biexciton systems

Jacek Kasprzak and Wolfgang Langbein
J. Opt. Soc. Am. B 29(7) 1766-1771 (2012)

Nondegenerate four-wave mixing in a double-? system under the influence of coherent population trapping

Baolong Lü, W. H. Burkett, and Min Xiao
Opt. Lett. 23(10) 804-806 (1998)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved