Laser-driven high-current-density pulsed electron emission from lead zirconium titanate ferroelectric ceramic

Citation
A. Moorti et al., Laser-driven high-current-density pulsed electron emission from lead zirconium titanate ferroelectric ceramic, APPL PHYS L, 79(8), 2001, pp. 1163-1165
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
0003-6951 → ACNP
Volume
79
Issue
8
Year of publication
2001
Pages
1163 - 1165
Database
ISI
SICI code
0003-6951(20010820)79:8<1163:LHPEEF>2.0.ZU;2-D
Abstract
Laser driven high current density pulsed electron emission is observed from a lead zirconium titanate (PZT, Zr/Ti: 53/47) ferroelectric ceramic disk u sing second harmonic of neodium: glass laser (wavelength similar to 527 nm, pulse duration similar to3 ns, laser fluence similar to5-40 mJ/cm(2)) in t he presence of a dc extraction field. Apart from electron current pulses of similar to 100 A/cm(2) [full width at half maximum (FWHM) similar to 400 n s] obtained from laser irradiation of the surface towards the positive end of the polarization vector, electron current pulses of similar to 30 A/cm(2 ) (FWHM similar to1.1 mus) are also emitted from laser irradiation of the o pposite surface. Dependencies of various characteristics of the electron pu lse on laser fluence in the two configurations are presented. (C) 2001 Amer ican Institute of Physics.