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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 3 — Feb. 1, 2010
  • pp: 2296–2301

Next generation 1.5 µm terahertz antennas: 
mesa-structuring of 
InGaAs/InAlAs photoconductive layers

H. Roehle, R. J. B. Dietz, H. J. Hensel, J. Böttcher, H. Künzel, D. Stanze, M. Schell, and B. Sartorius  »View Author Affiliations


Optics Express, Vol. 18, Issue 3, pp. 2296-2301 (2010)
http://dx.doi.org/10.1364/OE.18.002296


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Abstract

Mesa-structuring of InGaAs/InAlAs photoconductive layers is performed employing a chemical assisted ion beam etching (CAIBE) process. Terahertz photoconductive antennas for 1.5 µm operation are fabricated and evaluated in a time domain spectrometer. Order-of-magnitude improvements versus planar antennas are demonstrated in terms of emitter power, dark current and receiver sensitivity.

© 2010 OSA

OCIS Codes
(260.5150) Physical optics : Photoconductivity
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Spectroscopy

History
Original Manuscript: December 18, 2009
Revised Manuscript: January 15, 2010
Manuscript Accepted: January 15, 2010
Published: January 21, 2010

Citation
H. Roehle, R. J. B. Dietz, H. J. Hensel, J. Böttcher, H. Künzel, D. Stanze, M. Schell, and B. Sartorius, "Next generation 1.5 µm terahertz antennas: 
mesa-structuring of 
InGaAs/InAlAs photoconductive layers," Opt. Express 18, 2296-2301 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-3-2296


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References

  1. M. Suzuki and M. Tonouchi, “Fe-implanted InGaAs photoconductive terahertz detectors triggered by 1.56 µm femtosecond optical pulses,” Appl. Phys. Lett. 86(16), 163504 (2005). [CrossRef]
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  3. B. Sartorius, H. Roehle, H. Künzel, J. Böttcher, M. Schlak, D. Stanze, H. Venghaus, and M. Schell, “All-fiber terahertz time-domain spectrometer operating at 1.5 microm telecom wavelengths,” Opt. Express 16(13), 9565–9570 (2008). [CrossRef] [PubMed]
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  5. L. Duvillaret, F. Garet, J.-F. Roux, and J.-L. Coutaz, “Analytical modeling and optimization of terahertz time-domain spectroscopy experiments, using photoswitches as antennas,” IEEE J. Sel. Top. Quantum Electron. 7(4), 615–623 (2001). [CrossRef]

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