Published April 20, 2015 | Version v1
Journal article Metadata-only

Patch antenna terahertz photodetectors

Creators

  • 1. Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Diderot, Sorbonne Paris Cité, CNRS-UMS 7162, 75013 Paris (France)
  • 2. School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT (United Kingdom)

Description

We report on the implementation of 5 THz quantum well photodetector exploiting a patch antenna cavity array. The benefit of our plasmonic architecture on the detector performance is assessed by comparing it with detectors made using the same quantum well absorbing region, but processed into a standard 45° polished facet mesa. Our results demonstrate a clear improvement in responsivity, polarization insensitivity, and background limited performance. Peak detectivities in excess of 5 × 1012 cmHz1/2/W have been obtained, a value comparable with that of the best cryogenic cooled bolometers

Additional details

Identifiers

DOI
10.1063/1.4918983;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
106
Journal Issue
16
Journal Page Range
p. 161102-161102.5
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46104613
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S77: NANOSCIENCE AND NANOTECHNOLOGY;
Descriptors DEI
ABSORPTION; ANTENNAS; BOLOMETERS; COMPARATIVE EVALUATIONS; IMPLEMENTATION; PERFORMANCE; PHOTODETECTORS; PLASMONS; POLARIZATION; QUANTUM WELLS; THZ RANGE
Descriptors DEC
ELECTRICAL EQUIPMENT; EQUIPMENT; EVALUATION; FREQUENCY RANGE; MEASURING INSTRUMENTS; NANOSTRUCTURES; QUASI PARTICLES; SORPTION

Optional Information

Notes
(c) 2015 Author(s)