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Terahertz generation and power limits in In{sub 0.53}Ga{sub 0.47}As photomixer coupled to transverse-electromagnetic-horn antenna driven at 1.55 {mu}m wavelengths

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.3505341· OSTI ID:21464523
; ;  [1]; ; ;  [2]
  1. IEF, UMR CNRS 8622, Universites Paris-Sud, 91405 Orsay Cedex (France)
  2. UMR CNRS 8520, IEMN, Cite Scientifique, 59652 Villeneuve d'Ascq Cedex (France)
We report continuous wave generation at frequencies up to 2 THz using ion-irradiated In{sub 0.53}Ga{sub 0.47}As photomixers coupled to transverse-electromagnetic-horn antennae driven at {approx}1.55 {mu}m wavelength. Output powers up to 0.1 {mu}W at 700 GHz have been achieved. The dependence of the output power on incident optical power and the bias voltage is analyzed in the both regimes of Ohmic transport and recombination-limited transport. The fundamental limitations of the performance of the photomixer devices based on photoconductive phenomenon in recombination-limited transport are analyzed.
OSTI ID:
21464523
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 16 Vol. 97; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English