ENHANCED SUBPICOSECOND ELECTROMAGNETIC-RADIATION FROM YBA2CU3O7-DELTATHIN-FILM BOW-TIE ANTENNAS EXCITED WITH FEMTOSECONDS LASER-PULSES

Authors
TANI M TONOUCHI M WANG Z SAKAI K HANGYO M TOMOZAWA S MURAKAMI Y
Citation
M. Tani et al., ENHANCED SUBPICOSECOND ELECTROMAGNETIC-RADIATION FROM YBA2CU3O7-DELTATHIN-FILM BOW-TIE ANTENNAS EXCITED WITH FEMTOSECONDS LASER-PULSES, JPN J A P 2, 35(9B), 1996, pp. 1184-1187
Citations number
10
Categorie Soggetti
Physics, Applied
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS → ACNP
Volume
35
Issue
9B
Year of publication
1996
Pages
1184 - 1187
Database
ISI
SICI code
Abstract
We demonstrate the emission of sub-picosecond electromagnetic Naves fr om YBa2Cu3O7-delta thin-film bow-tie antennas. Femtosecond laser-pulse irradiation creates a radiative supercurrent transient in the films, and freely propagated radiation is detected and characterized. The low -frequency component of the radiation was greatly enhanced by using bo w-tie antennas instead of dipole antennas. We discuss the antenna effe cts on both the radiation spectra and the radiation power.