A robust and powerful green light photoemission source: The ferroelectric ceramics

Authors
Doria, A Gallerano, GP Giannessi, L Giovenale, E Boscolo, I Parafioriti, R Porcari, A Scurati, A Castellano, M Catani, L Ferrario, M Patteri, P Tazzioli, F Handerek, J
Citation
A. Doria et al., A robust and powerful green light photoemission source: The ferroelectric ceramics, APPL PHYS L, 74(6), 1999, pp. 859-861
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
74
Issue
6
Year of publication
1999
Pages
859 - 861
Database
ISI
SICI code
0003-6951(19990208)74:6<859:ARAPGL>2.0.ZU;2-8
Abstract
The photoemission characteristics of ceramic disks of lead zirconate titana te lanthanum doped (PLZT), have been investigated. We observe 1 nC of extra cted charge under an accelerating field of 20 kV/cm in poor vacuum conditio ns. The emission is clearly limited by space charge effects. The extrapolat ed quantum efficiency results in approximate to 10(-6). The yield of a PLZT ceramic in the ferroelectric state and its slope versus light intensity ha ve turned out higher than those of antiferroelectric ceramic. Samples in di fferent experimental configurations have shown different nonlinear yields. (C) 1999 American Institute of Physics. [S0003-6951(99)03504-4].