Abstract

The radiation efficiency and physical mechanism for the generation of subpicosecond electromagnetic pulses from large-aperture photoconducting antennas are evaluated. The rise time of the photocurrent is found to be more important than the fall time in determining the relative sensitivity of photoconducting materials. Indium phosphide is found to be almost 10 times more sensitive than radiation-damaged silicon-on-sapphire.

© 1990 Optical Society of America

Modeling of femtosecond electromagnetic pulses from large-aperture photoconductors

A. J. Taylor, P. K. Benicewicz, and S. M. Young
Opt. Lett. 18(16) 1340-1342 (1993)

Intense THz Pulses with large ponderomotive potential generated from large aperture photoconductive antennas

X. Ropagnol, M. Khorasaninejad, M. Raeiszadeh, S. Safavi-Naeini, M. Bouvier, C. Y. Côté, A. Laramée, M. Reid, M. A. Gauthier, and T. Ozaki
Opt. Express 24(11) 11299-11311 (2016)

Near-field propagation of terahertz pulses from a large-aperture antenna

Edward Budiarto, Nen-Wen Pu, Seongtae Jeong, and Jeffrey Bokor
Opt. Lett. 23(3) 213-215 (1998)

Gigahertz planar photoconducting antenna activated by picosecond optical pulses

D. W. Liu, J. B. Thaxter, and D. F. Bliss
Opt. Lett. 20(14) 1544-1546 (1995)

Enhancement of narrow-band terahertz radiation from photoconducting antennas by optical pulse shaping

Yongqian Liu, Sang-Gyu Park, and A. M. Weiner
Opt. Lett. 21(21) 1762-1764 (1996)