Scheduled System Maintenance:
On Wednesday, July 29th, IEEE Xplore will undergo scheduled maintenance from 7:00-9:00 AM ET (11:00-13:00 UTC). During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

Fourth-harmonic Generation at Crystalline Si(001) Interfaces

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Lee, Y.-S. ; Dept. of Phys., Texas Univ., Austin, TX, USA ; Downer, M.C.

Summary form only given. We previously reported optical fourth-harmonic generation (FHG) in reflection from a GaAs(001) surface using 200-fs pulses, well below the damage threshold.' The data revealed a strong fourfold anisotropic surface-specific polarization that is not present in second-harmonic generation (SHG) and that, surprisingly, was nearly as strong as the dipole-allowed, twofold anisotropic contribution from the noncentrosymmetric bulk. The unusual relative strength of the surface FH contribution suggested that surface-specific FHG could be observed by itself in reflection from a centrosymmetric crystal. In this work, we demonstrate azimuthally anisotropic FHG from a crystalline Si(OO1) interface using 5-pJ, 200-fs pulses at fluences >5X below the damage threshold. Our data indicate that the surface dipole FH contribution dominates over the bulk quadrupole FH contribution much more strongly than for the corresponding SHG contributions, thus making FHG from Si(OO1) one of the most purely surface-specific optical probes ever reported.

Published in:

Quantum Electronics Conference, 1998. IQEC 98. Technical Digest. Summaries of papers presented at the International

Date of Conference:

8-8 May 1998