Home

Publications

Presentations

Tutorials

Images

Animations

Group Members

Diversions

Links


Institute of Optics

bar_yell

Spatiotemporal shaping of half-cycle terahertz pulses
by diffraction through conductive apertures of finite thickness

Jake Bromage, Stojan Radic, G. P. Agrawal, C. R. Stroud, Jr.,
P. M. Fauchet and Roman Sobolewski

JOSA B 15, 1953 (1998).


We demonstrate a simple quasi-optical technique for spatiotemporal shaping of half-cycle terahertz-radiation pulses. We show, both experimentally and theoretically, that properly polarized half-cycle pulses can be modulated temporally by diffraction through a conductive aperture of finite thickness. We use the finite-difference time-domain method to solve Maxwell's equations for such a geometry and show that it can explain all the experimentally observed features. In the case of a thick aperture, a planar waveguide model can also be used to describe the propagation of the pulse through the aperture, with excellent agreement with the experimental results.


Click here to download the .pdf version of the paper bromage981.pdf (475 KB)


Previous Abstract

Publications List

Next Abstract


Return to Image Gallery





Web page maintained by
Hideomi Nihira ( nihira@optics.rochester.edu ).
Last modified 13 September 2006