High Power Generation of THz From 1550-nm Photoconductive Emitters

A. Mingardi, W. D. Zhang, E. R. Brown, A. D. Feldman, T. E. Harvey, And R.P. Mirin

Research output: Contribution to journalArticlepeer-review

Abstract

Two photoconductive emitters - one with a self-complementary square spiral antenna, and the other with a resonant slot antenna - were fabricated on a GaAs epilayer embedded with ErAs quantum dots. Driven with 1550 nm mode-locked lasers, ~117 μW broadband THz power was generated from the device with the spiral antenna, and ~1.2 μW from the device with resonant slot antenna. The optical-to-THz conversion is through extrinsic photoconductivity.
Original languageEnglish
Pages (from-to)14472-14478
Number of pages7
JournalOptics Express
Volume26
Issue number11
DOIs
StatePublished - May 28 2018

ASJC Scopus Subject Areas

  • Atomic and Molecular Physics, and Optics

Keywords

  • Optics
  • Optics and photonics

Disciplines

  • Optics

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