Rights statement: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Photonics, copyright © 2016 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [URL]
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Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Fast room temperature detection of terahertz quantum cascade lasers with graphene loaded bow-tie plasmonic antenna arrays
AU - Degl'innocenti, Riccardo
AU - Xiao, Long
AU - Jessop, David S
AU - Kindness, Stephen J.
AU - Ren, Yuan
AU - Lin, Hungyen
AU - Zeitler, J. Axel
AU - Alexander-Webber, Jack
AU - Joyce, Hannah
AU - Braeuninger-Weimer, Philipp
AU - Hofmann, Stephan
AU - Beere, Harvey E.
AU - Ritchie, David A.
PY - 2016/10/19
Y1 - 2016/10/19
N2 - We present a fast room temperature terahertz detector based on interdigitated bow-tieantennas contacting graphene. Highly efficient photodetection was achieved by using two metalswith different work functions as the arms of a bow-tie antenna contacting graphene. Arrays of thebow-ties were fabricated in order to enhance the responsivity and coupling of the incoming light tothe detector realizing an efficient imaging system. The device has been characterized and testedwith a terahertz quantum cascade laser emitting in single frequency around 2 THz yielding aresponsivity of ~ 34 A/W and a noise-equivalent-power of ~1.5E-7W/Hz1/2
AB - We present a fast room temperature terahertz detector based on interdigitated bow-tieantennas contacting graphene. Highly efficient photodetection was achieved by using two metalswith different work functions as the arms of a bow-tie antenna contacting graphene. Arrays of thebow-ties were fabricated in order to enhance the responsivity and coupling of the incoming light tothe detector realizing an efficient imaging system. The device has been characterized and testedwith a terahertz quantum cascade laser emitting in single frequency around 2 THz yielding aresponsivity of ~ 34 A/W and a noise-equivalent-power of ~1.5E-7W/Hz1/2
KW - graphene
KW - photodetection
KW - terahertz
KW - quantum cascade laser
KW - optical modulator
U2 - 10.1021/acsphotonics.6b00405
DO - 10.1021/acsphotonics.6b00405
M3 - Journal article
VL - 3
SP - 1747
EP - 1753
JO - ACS Photonics
JF - ACS Photonics
SN - 2330-4022
IS - 10
ER -