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Enhanced Terahertz Receiver Using a Distributed Bragg Reflector Coupled to a Photoconductive Antenna

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8 Author(s)
Faulks, R. ; Cavendish Lab., Univ. of Cambridge, Cambridge, UK ; Evans, M. ; Page, H. ; Malik, S.
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We report the use of a terahertz (THz) receiver fabricated using a photoconductive antenna mounted upon a distributed Bragg reflector (DBR). It is shown that the relative performance of the device is in accordance with the reflectivity curves of the DBR. At maximum reflectivity the device improved upon the reference THz signal by up to 30%. In addition, we characterize the saturation of the device with laser pump power and it is shown that the device exhibits an improved optical efficiency when compared to the reference receiver.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 21 )

Date of Publication:

Nov.1, 2009

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