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Summary: Ultrafast linear kinetic inductive photoresponse of YBa2Cu3O7-
meander-line structures by photoimpedance measurements
Haig A. Atikian,1,a
Behnood G. Ghamsari,2
Steven M. Anlage,2
and A. Hamed Majedi1
1
Department of Electrical and Computer Engineering and the Institute for Quantum Computing, University of
Waterloo, Waterloo, Ontario N2L 3G1, Canada
2
Department of Physics, Center for Nanophysics and Advanced Materials, University of Maryland,
College Park, Maryland 20742-4111, USA
Received 19 October 2010; accepted 8 February 2011; published online 25 February 2011;
publisher error corrected 3 March 2011
We report the experimental demonstration of the linear kinetic-inductive photoresponse of thin-
film YBa2Cu3O7- meander line structures, where the photoresponse amplitude,
full-width-half-maximum, and rise time are bilinear in the incident optical power and bias current.
This bilinear behavior reveals a trade-off between obtaining high responsivity and high speed
photodetection. We also report a rise time as short as 29 ps in our photoimpedance measurements.
© 2011 American Institute of Physics. doi:10.1063/1.3561742
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