Title :
Simulation of spatiotemporal terahertz pulse shaping in 3-D using conductive apertures of finite thickness
Author :
Nekkanti, Sunil ; Sullivan, Dennis ; Citrin, David S.
Author_Institution :
Intel Corp., Folsom, CA, USA
fDate :
9/1/2001 12:00:00 AM
Abstract :
The need for short, high-frequency pulses for spectroscopy and imaging has motivated the search for methods to shape these pulses. Conductive apertures are used for spatiotemporal shaping of terahertz pulses. Computer simulation can facilitate the design of such apertures by allowing one to evaluate different configurations and their related parameters. Three-dimensional simulations using the finite-difference time-domain method with techniques described make this possible without the need for extraordinary computer resources. The accuracy of this method is confirmed by comparison with previously published experimental data. The versatility of the method is demonstrated by the simulation of apertures of various shapes and sizes
Keywords :
finite difference time-domain analysis; optical design techniques; optical elements; optical pulse generation; optical pulse shaping; spatial filters; 3D terahertz pulse shaping; accuracy; aperture shape; aperture size; computer simulation; conductive apertures; configurations; design; experimental data; finite thickness; finite thickness conductive apertures; finite-difference time-domain method; imaging; related parameters; short high-frequency pulses; simulation; spatiotemporal shaping; spatiotemporal terahertz pulse shaping; spectroscopy; terahertz pulses; three-dimensional simulations; versatility; Apertures; Computational modeling; Computer simulation; Finite difference methods; Optical imaging; Pulse shaping methods; Shape; Spatiotemporal phenomena; Spectroscopy; Time domain analysis;
Journal_Title :
Quantum Electronics, IEEE Journal of
