TY  - JOUR
AU  - Lindgren, M.
AU  - Trifonov, V.
AU  - Zorin, M.
AU  - Danerud, M.
AU  - Winkler, D.
AU  - Karasik, B. S.
AU  - Gol’tsman, G. N.
AU  - Gershenzon, E. M.
PY  - 1994
DA  - 1994//
TI  - Transient resistive photoresponse of YBa[sub:2]Cu[sub:3]O[sub:7−δ] films using low power 0.8 and 10.6 μm laser radiation
T2  - Appl. Phys. Lett.
JO  - Appl. Phys. Lett.
SP  - 3036
EP  - 3038
VL  - 64
IS  - 22
KW  - YBCO HTS HEB
KW  - nonequilibrium
AB  - Thin YBa2Cu3O7−δ laser deposited films were patterned into devices consisting of ten parallel 1 μm wide strips. Nonequilibrium picosecond and bolometric photoresponses were studied by the use of 17 ps full width at half‐maximum laser pulses and amplitude modulated radiation from an AlGaAs laser up to 10 GHz and from a CO2 laser up to 1 GHz. The time and frequency domain measurements were in agreement. The fast response can be explained by electron heating. The use of low optical power and a sensitive measurement system excluded any nonlinear transient processes and kinetic inductance changes in the superconducting state. At 1 GHz modulation frequency, the responsivity was ∼1.2 V/W both for 0.8 and 10.6 μm wavelengths. The sensitivity of a fast and spectrally broadband infrared detector is discussed.
SN  - 0003-6951
UR  - http://aip.scitation.org/doi/10.1063/1.111398
UR  - https://doi.org/10.1063/1.111398
DO  - 10.1063/1.111398
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1639), last updated on Wed, 26 May 2021 20:53:41 -0500
ID  - Lindgren_etal1994
ER  -