Design and performance of singular electric field terahertz photoconducting antennas

Y. Cai, I. Brener, J. Lopata, J. Wynn, L. Pfeiffer, J. Federici

Research output: Contribution to journalArticlepeer-review

116 Scopus citations

Abstract

We present new designs of more efficient terahertz (THz) radiation emitters and detectors enhanced by electric field singularities using sharp and laterally offset electrodes. We compare the performances of the terahertz emission and different polarization properties resulting from these structures. An average THz radiation power of 3 μW 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.

Original languageEnglish (US)
Pages (from-to)2076-2078
Number of pages3
JournalApplied Physics Letters
Volume71
Issue number15
DOIs
StatePublished - Oct 13 1997

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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