TY  - CONF
AU  - Seliverstov, S. V.
AU  - Rusova, A. A.
AU  - Kaurova, N. S.
AU  - Voronov, B. M.
AU  - Goltsman, G. N.
PY  - 2016
DA  - 2016//
TI  - Attojoule energy resolution of direct detector based on hot electron bolometer
T2  - J. Phys.: Conf. Ser.
BT  - J. Phys.: Conf. Ser.
SP  - 012165 (1 to 5)
VL  - 741
PB  - IOP Publishing
KW  - NbN HEB detector
AB  - We characterize superconducting antenna-coupled NbN hot-electron bolometer (HEB) for direct detection of THz radiation operating at a temperature of 9.0 K. At signal frequency of 2.5 THz, the measured value of the optical noise equivalent power is 2.0×10-13 W-Hz-0.5. The estimated value of the energy resolution is about 1.5 aJ. This value was confirmed in the experiment with pulsed 1.55-μm laser employed as a radiation source. The directly measured detector energy resolution is 2 aJ. The obtained risetime of pulses from the detector is 130 ps. This value was determined by the properties of the RF line. These characteristics make our detector a device-of-choice for a number of practical applications associated with detection of short THz pulses.
UR  - https://doi.org/10.1088/1742-6596/741/1/012165
DO  - 10.1088/1742-6596/741/1/012165
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1337), last updated on Wed, 12 May 2021 00:33:51 -0500
ID  - Seliverstov_etal2016
ER  -