Measurement of the penetration depth of superconducting thin films by optoelectronic sampling techniques

Author

Shinho Cho ; Erlig, H. ; Shamino Wang ; Fetterman, H.R.

Author_Institution

Optoelectron. Lab., California Univ., Los Angeles, CA, USA

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

1612

Lastpage

1615

Abstract

The magnetic penetration depth of YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// (YBCO) thin films has been determined as a function of temperature by using picosecond optoelectronic sampling techniques. Electrical pulses of 8 ps full width at half maximum were generated on photoconductive switches by a mode-locked Nd:YAG pumped dye laser and propagated on superconducting delay lines which were 250 mm in length. The measured behavior at low temperature (T\n\n\t\t

Keywords

barium compounds; electro-optical effects; high-speed optical techniques; high-temperature superconductors; penetration depth (superconductivity); superconducting thin films; yttrium compounds; 250 mm; 8 ps; YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta//; YBa/sub 2/Cu/sub 3/O/sub 7/; electrical pulses; mode-locked Nd:YAG pumped dye laser; optoelectronic sampling; pairing mechanism; penetration depth; photoconductive switches; picosecond optoelectronic sampling; superconducting delay lines; superconducting thin films; temperature dependence; Magnetic films; Optical pulse generation; Photoconductivity; Sampling methods; Space vector pulse width modulation; Superconducting magnets; Superconducting thin films; Switches; Temperature; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.620885

Filename

620885