Design and performance of singular electric field terahertz photoconducting antennas

被引:110
作者
Cai, Y
Brener, I
Lopata, J
Wynn, J
Pfeiffer, L
Federici, J
机构
[1] AT&T BELL LABS,LUCENT TECHNOL,MURRAY HILL,NJ 07974
[2] NEW JERSEY INST TECHNOL,DEPT PHYS,NEWARK,NJ 07102
关键词
D O I
10.1063/1.119346
中图分类号
O59 [应用物理学];
学科分类号
摘要
We present new designs of more efficient terahertz (THz) radiation emitters and detectors enhanced by electric field singularities using sharp and laterally offset electrodes. Mie compare the performances of the terahertz emission and different polarization properties resulting from these structures. An average THz radiation power of 3 mu W is achieved under 20 mW excitation, calibrated by free space electro-optic sampling. We also study the gap size dependence of the THz radiation, and find an absence of a positive electrode effect in the small gap limit. (C) 1997 American Institute of Physics.
引用
收藏
页码:2076 / 2078
页数:3
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