Document Type
Article
Publication Date
5-2012
Publication Source
Physical Review A
Abstract
We study second and third harmonic generation in centrosymmetric semiconductors at visible and UV wavelengths in bulk and cavity environments. Second harmonic generation is due to a combination of spatial symmetry breaking, the magnetic portion of the Lorentz force, and quadrupolar contributions from inner core electrons. The material is assumed to have a nonzero, third-order nonlinearity that gives rise to most of the third harmonic signal. Using the parameters of bulk silicon we predict that cavity environments modify the dependence of second harmonic generation on incident angle, while improving third harmonic conversion efficiency by several orders of magnitude relative to bulk silicon. This occurs despite the fact that the harmonic signals may be tuned to a wavelength range where the dielectric function of the material is negative: A phase-locking mechanism binds the generated signals to the pump and inhibits their absorption. These results point the way to alternative uses and flexibility of materials such as silicon as nonlinear media in the visible and UV ranges.
Inclusive pages
053809-1 to 053809-11
ISBN/ISSN
1050-2947
Document Version
Published Version
Copyright
Copyright © 2012, American Physical Society
Publisher
American Physical Society
Volume
85
Peer Reviewed
yes
Issue
5
eCommons Citation
Scalora, Michael; Vincenti, Maria Antonietta; de Ceglia, Domenico; Akozbek, N.; Roppo, Vito; Bloemer, M. J.; and Haus, Joseph W., "Dynamical Model of Harmonic Generation in Centrosymmetric Semiconductors at Visible and UV Wavelengths" (2012). Electrical and Computer Engineering Faculty Publications. 281.
https://ecommons.udayton.edu/ece_fac_pub/281
Included in
Computer Engineering Commons, Electrical and Electronics Commons, Electromagnetics and Photonics Commons, Optics Commons, Other Electrical and Computer Engineering Commons, Systems and Communications Commons
Comments
This document is provided for download in compliance with the publisher's policy on self-archiving. Permission documentation is on file.