Characterization of layered dielectrics with short electromagnetic pulses

Author

Carin, L. ; Agi, K. ; Kralj, D. ; Leung, K.M. ; Garetz, B.A.

Author_Institution

Weber Res. Inst., Polytech Univ., Brooklyn, NY, USA

Volume

29

Issue

7

fYear

1993

fDate

7/1/1993 12:00:00 AM

Firstpage

2141

Lastpage

2144

Abstract

The use of picosecond duration bursts of electromagnetic radiation to study short-pulse wave propagation in layered dieletric materials is discussed. The radiation is generated using planar antennas that are switched photoconductively. The measurements are compared with time- and frequency-domain theoretical data. Issues associated with the windowing of time-domain results for highly resonant structures are addressed, as well as how the derived frequency domain data are influenced by the windowed Fourier transform. The accuracy of the time-domain results suggest that this technique may be a useful tool for characterizing layered materials

Keywords

antennas; dielectric devices; dielectric thin films; electromagnetic pulse; measurement by laser beam; photoconducting devices; 76 MHz; electromagnetic radiation; frequency-domain theoretical data; highly resonant structures; layered dielectrics; picosecond duration bursts; planar antennas; short electromagnetic pulses; short-pulse wave propagation; switched photoconductively; time-domain results; windowed Fourier transform; Antenna measurements; Dielectric materials; Dielectric measurements; Electromagnetic propagation; Electromagnetic radiation; Frequency measurement; Photoconducting materials; Photoconductivity; Planar arrays; Time domain analysis;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.237487

Filename

237487