Picosecond photoresponse of epitaxial YBa[sub 2]Cu[sub 3]O[sub 7-delta] thin films

Hegmann, F.A.; Hughes, R.A.; Preston, J.S.
June 1994
Applied Physics Letters;6/6/1994, Vol. 64 Issue 23, p3172
Academic Journal
Examines the picosecond (ps) photoresponse signals from epitaxial YBa[sub 2]Cu[sub 3]O[sub 7-thickness] thin films using five ps and 820 nanometer laser pulses. Appearance of slow component in signal at higher bias currents; Observation of fast transients of 20 ps wide with film thickness of 200 nanometer; Link of fast response to bolometric mechanism.


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