Text Only Queen's U. Directory Contact: Queen's  |  Physics
 queensu.ca   physics.queensu.ca    


Home

............................................

  General Information

............................................
 
Contact Us

.....................................
 
Maps and Directions

.....................................
 
Colloquia and Talks

.....................................
 
Department News

.....................................
 
Employment

.....................................
 
Facilities

.....................................
 
IT Support

.....................................
 
About Queen's

.....................................
 
About Kingston

.....................................

Undergrad Studies

............................................

Graduate Studies

............................................

Research Groups

............................................

Faculty & Staff

............................................

Alumni & Friends

............................................

Visitors & Residents

............................................

Queen's Observatory

............................................

 
 Upcoming Talks        Past Talks        Calendar View

Condensed Matter Physics Seminar


Applications of quasi-phase-matching in semiconductor waveguides

CMP Seminar: Professor David Hutchings
University of Glasgow, Scotland

Time
 
Tue. May 15, 2007     12:30 PM     Stirling 261 (or 201)

Abstract
 
Quasi-phase-matching is a technique to maintain a coherent interaction between two modes which have different propagation constants by spatially patterning the medium. I will describe two current projects where we make use of this technique. The first is optical frequency conversion where we spatially pattern the second-order optical susceptibility by a process called quantum well intermixing. We demonstrate second-harmonic generation in superlattice waveguides and show how this technique could be used for near- and mid-IR generation using difference frequency or parametric generation with an integrated pump laser. Second, we demonstrate quasi-phase-matching of Faraday rotation and develop the related technology that would allow a waveguide optical isolator to be realised on the same semiconductor chip as the laser source.

List of upcoming talks and colloquia

Calendar for the current month



  Back to top
©2013 Department of Physics, Engineering Physics & Astronomy
Queen's University
Kingston, Ontario
K7L 3N6 Canada
Web Inquiries
webmaster@physics.queensu.ca
Departmental Inquiries
dept@physics.queensu.ca