ORDINARY AND EXTRAORDINARY COMPLEX REFRACTIVE-INDEX OF THE LEAD TUNGSTATE (PBWO4) CRYSTAL

Citation
S. Baccaro et al., ORDINARY AND EXTRAORDINARY COMPLEX REFRACTIVE-INDEX OF THE LEAD TUNGSTATE (PBWO4) CRYSTAL, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 385(2), 1997, pp. 209-214
Citations number
13
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
ISSN journal
01689002
Volume
385
Issue
2
Year of publication
1997
Pages
209 - 214
Database
ISI
SICI code
0168-9002(1997)385:2<209:OAECRO>2.0.ZU;2-R
Abstract
The ordinary and the extraordinary complex refractive index of PbWO4 t ogether with the crystal optical axis orientation are determined on th e basis of transmittance and reflectance measurements at normal incide nce with polarised light and the measurement of the separation angle b etween the ordinary and the extraordinary ray at various laser wavelen gths. The real part of the extraordinary complex refractive index is l ower than the ordinary one (i.e. PbWO4 is a negative uniaxial crystal) and they seem not to be affected by a 30 ppm Nb5+ doping.