TY  - JOUR
AU  - Gol'tsman, G.
AU  - Kouminov, P.
AU  - Goghidze, I.
AU  - Gershenzon, E.
PY  - 1995
DA  - 1995//
TI  - Nonequilibrium kinetic inductive response of YBCO thin films to low power laser pulses
T2  - IEEE Trans. Appl. Supercond.
JO  - IEEE Trans. Appl. Supercond.
SP  - 2591
EP  - 2594
VL  - 5
IS  - 2
KW  - YBCO HTS KID
AB  - We have discovered a transient nonequilibrium kinetic inductive voltage response of YBCO thin films to 20 ps pulses of YAG:Nd laser radiation with 0.63 /spl mu/m and 1.54 /spl mu/m wavelength. By increasing the sensitivity of the read-out system with 100 ps resolution time and diminishing the light intensity (fluence 0.1-2 /spl mu/J/cm/sup 2/) and transport current (density /spl les/10/sup 5/ A/cm/sup 2/) we were able to observe a peculiar bipolar signal form with nearly equal amplitudes for each sign. The integration of the kinetic inductive response over time gives the result which is qualitatively, of the same form as the response in the resistive and normal states: the nonequilibrium picosecond scale component is followed by the bolometric nanosecond component. The nonequilibrium response is interpreted as suppression of the order parameter by excess quasiparticles followed by a change both in resistance (for the resistive state) and in kinetic inductance (for the superconducting state).
SN  - 1051-8223
UR  - http://ieeexplore.ieee.org/document/403120/
UR  - https://doi.org/10.1109/77.403120
DO  - 10.1109/77.403120
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1621), last updated on Wed, 26 May 2021 14:13:44 -0500
ID  - Goltsman_etal1995
ER  -