TY  - GEN
TI  - Sensitivity and Noise in THz Photoconductive Metasurface Detectors
Y1  - 2022/09/26/
SN  - 2162-2027
PB  - IEEE
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
ID  - discovery10158201
KW  - Optical fibers
KW  -  Optical fiber sensors
KW  -  Sensitivity
KW  -  Absorption
KW  -  Detectors
KW  -  Logic gates
KW  -  Optical detectors
CY  - Delft, Netherlands
UR  - https://doi.org/10.1109/IRMMW-THz50927.2022.9895560
A1  - Hale, LL
A1  - Jung, H
A1  - Sarma, R
A1  - Harris, CT
A1  - Luk, TS
A1  - Addamane, SJ
A1  - Reno, JL
A1  - Mitrofanov, O
A1  - Brener, I
N2  - Photoconductive antenna THz detectors based on highly absorbing LT-GaAs metasurfaces enable high sensitivity and high signal-to-noise ratio (> 106) at optical gate powers as low as 5 ?W. By investigating the dependence of detector performance on optical gate power, we compare several metasurface detectors with standard PCAs and develop a general model for quantifying the sensitivity and optimal gate power for detector operation. We also show that the LT-GaAs metasurface can even enhance sub bandgap absorption, enabling the use of these detectors in telecom wavelength systems.
AV  - public
ER  -