Ultrafast photoresponse of an YBa(2)Cu(3)O(7-delta) film to far-infrared radiation pulses.
We report the observation of an ultrafast photoresponse of a high-T(c), film to far-infrared radiation pulses. The response of a sample, consisting of a current-carrying structured YBa(2)Cu(3)O(7-delta) film cooled to liquid-nitrogen temperature, was studied by use of ultrashort laser pulses from an optically pumped far-infrared laser in the frequency range from 0.7 to 7 THz. We found that the response time was limited by the time resolution, 120 ps, of our electronic registration equipment.
Nebosis
R S
RS
Heusinger
M A
MA
Semenov
A D
AD
Lang
P T
PT
Schatz
W
W
Steinke
R
R
Renk
K F
KF
Gol'tsman
G N
GN
Karasik
B S
BS
Gershenzon
E M
EM