Analysis of photo-excited thin superconducting films for optoelectronic device applications

Author

Majedi, A. Hamed ; Chaudhuri, S.K.

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

Volume

11

Issue

3

fYear

2001

fDate

9/1/2001 12:00:00 AM

Firstpage

4095

Lastpage

4101

Abstract

This paper introduces a steady state photoresponse analysis in superconducting thin films. A model is developed for investigating the capability of superconductors for potential optoelectronic applications. First, we consider the thermodynamical variation under the application of continuous optical radiation in superconducting state. Then, the photo-induced changes in electrical parameters are evaluated from thermodynamical variations using the electrodynamics based on the BCS theory. All variations are considered as a function of optical characteristics along with the material properties. The numerical simulation gives us the optimum range of applied optical frequency and absorbed radiation intensity required for sensitive control of superconducting properties for optoelectronic and microwave applications.

Keywords

BCS theory; microwave photonics; optoelectronic devices; superconducting microwave devices; superconducting thin films; BCS theory; absorbed radiation intensity; applied optical frequency; continuous optical radiation; electrical parameters; optoelectronic device applications; photo-excited thin superconducting films; steady state photoresponse analysis; thermodynamical variation; Electrodynamics; Material properties; Optical films; Optical sensors; Optoelectronic devices; Steady-state; Superconducting films; Superconducting microwave devices; Superconducting thin films; Superconductivity;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2001.962261

Filename

962261