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Title: Antenna-boosted mixing of terahertz and near-infrared radiation

Abstract

Using moderate terahertz intensities of approximately 20 kW/cm{sup 2} near 0.6 THz, together with simple antennas, we have observed up to 12 sidebands on a near IR laser. The high-order sidebands were generated at room temperature in a membrane containing GaAs/AlGaAs quantum wells. The antennas were rectangular apertures ∼0.2 mm long in a gold film evaporated onto the membrane. Comparing the intensities required to generate comparable sideband spectra with and without antennas, we estimate the local terahertz field was enhanced by a factor of 5 ± 1, in agreement with finite difference time domain calculations.

Authors:
;  [1];  [2];  [1];  [2];  [3]; ;  [4]
  1. Physics Department, University of California, Santa Barbara, California 93106 (United States)
  2. (United States)
  3. (Switzerland)
  4. Materials Department, University of California, Santa Barbara, California 93106 (United States)
Publication Date:
OSTI Identifier:
22311016
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM COMPOUNDS; ANTENNAS; APERTURES; COMPUTERIZED SIMULATION; FILMS; GALLIUM ARSENIDES; GOLD; MEMBRANES; NEAR INFRARED RADIATION; QUANTUM WELLS; SPECTRA; TEMPERATURE RANGE 0273-0400 K

Citation Formats

Banks, Hunter B., Sherwin, Mark S., Institute for Terahertz Science and Technology, University of California, Santa Barbara, California 93106, Hofmann, Andrea, Institute for Terahertz Science and Technology, University of California, Santa Barbara, California 93106, Swiss Federal Institute of Technology, Zurich, 8093 Zurich, Mack, Shawn, and Gossard, Arthur C. Antenna-boosted mixing of terahertz and near-infrared radiation. United States: N. p., 2014. Web. doi:10.1063/1.4894634.
Banks, Hunter B., Sherwin, Mark S., Institute for Terahertz Science and Technology, University of California, Santa Barbara, California 93106, Hofmann, Andrea, Institute for Terahertz Science and Technology, University of California, Santa Barbara, California 93106, Swiss Federal Institute of Technology, Zurich, 8093 Zurich, Mack, Shawn, & Gossard, Arthur C. Antenna-boosted mixing of terahertz and near-infrared radiation. United States. doi:10.1063/1.4894634.
Banks, Hunter B., Sherwin, Mark S., Institute for Terahertz Science and Technology, University of California, Santa Barbara, California 93106, Hofmann, Andrea, Institute for Terahertz Science and Technology, University of California, Santa Barbara, California 93106, Swiss Federal Institute of Technology, Zurich, 8093 Zurich, Mack, Shawn, and Gossard, Arthur C. Mon . "Antenna-boosted mixing of terahertz and near-infrared radiation". United States. doi:10.1063/1.4894634.
@article{osti_22311016,
title = {Antenna-boosted mixing of terahertz and near-infrared radiation},
author = {Banks, Hunter B. and Sherwin, Mark S. and Institute for Terahertz Science and Technology, University of California, Santa Barbara, California 93106 and Hofmann, Andrea and Institute for Terahertz Science and Technology, University of California, Santa Barbara, California 93106 and Swiss Federal Institute of Technology, Zurich, 8093 Zurich and Mack, Shawn and Gossard, Arthur C.},
abstractNote = {Using moderate terahertz intensities of approximately 20 kW/cm{sup 2} near 0.6 THz, together with simple antennas, we have observed up to 12 sidebands on a near IR laser. The high-order sidebands were generated at room temperature in a membrane containing GaAs/AlGaAs quantum wells. The antennas were rectangular apertures ∼0.2 mm long in a gold film evaporated onto the membrane. Comparing the intensities required to generate comparable sideband spectra with and without antennas, we estimate the local terahertz field was enhanced by a factor of 5 ± 1, in agreement with finite difference time domain calculations.},
doi = {10.1063/1.4894634},
journal = {Applied Physics Letters},
number = 9,
volume = 105,
place = {United States},
year = {Mon Sep 01 00:00:00 EDT 2014},
month = {Mon Sep 01 00:00:00 EDT 2014}
}