@Article{Lindgren_etal1994, author="Lindgren, M. and Trifonov, V. and Zorin, M. and Danerud, M. and Winkler, D. and Karasik, B. S. and Gol{\textquoteright}tsman, G. N. and Gershenzon, E. M.", title="Transient resistive photoresponse of YBa$_{2}$Cu$_{3}$O$_{7-$\delta$}$ films using low power 0.8 and 10.6 $\mu$m laser radiation", journal="Appl. Phys. Lett.", year="1994", volume="64", number="22", pages="3036--3038", optkeywords="YBCO HTS HEB; nonequilibrium", abstract="Thin YBa2Cu3O7-$\delta$ laser deposited films were patterned into devices consisting of ten parallel 1 $\mu$m 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 $\mu$m wavelengths. The sensitivity of a fast and spectrally broadband infrared detector is discussed.", optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1639), last updated on Wed, 26 May 2021 20:53:41 -0500", issn="0003-6951", doi="10.1063/1.111398", opturl="http://aip.scitation.org/doi/10.1063/1.111398", opturl="https://doi.org/10.1063/1.111398" }