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Title:
Ordinary and extraordinary complex refractive index of the lead tungstate (PbWO 4) crystal
Authors:
Baccaro, S.; Barone, L. M.; Borgia, B.; Castelli, F.; Cavallari, F.; Dafinei, I.; de Notaristefani, F.; Diemoz, M.; Festinesi, A.; Leonardi, E.; Longo, E.; Montecchi, M.; Organtini, G.
Affiliation:
AA(INFN Sezione di Roma, Italy), AB(INFN Sezione di Roma, Italy), AC(INFN Sezione di Roma, Italy), AD(INFN Sezione di Roma, Italy), AE(INFN Sezione di Roma, Italy), AF(INFN Sezione di Roma, Italy), AG(INFN Sezione di Roma, Italy), AH(INFN Sezione di Roma, Italy), AI(INFN Sezione di Roma, Italy), AJ(INFN Sezione di Roma, Italy), AK(INFN Sezione di Roma, Italy), AL(INFN Sezione di Roma, Italy), AM(INFN Sezione di Roma, Italy)
Publication:
Nuclear Inst. and Methods in Physics Research, A, Volume 385, Issue 2, p. 209-214.
Publication Date:
01/1997
Origin:
ELSEVIER
Abstract Copyright:
(c) 1997 Elsevier Science B.V. All rights reserved.
DOI:
10.1016/S0168-9002(96)01016-9
Bibliographic Code:
1997NIMPA.385..209B

Abstract

The ordinary and the extraordinary complex refractive index of PbWO 4 together with the crystal optical axis orientation are determined on the basis of transmittance and reflectance measurements at normal incidence with polarised light and the measurement of the separation angle between the ordinary and the extraordinary ray at various laser wavelengths. The real part of the extraordinary complex refractive index is lower than the ordinary one (i.e. PbWO 4 is a negative uniaxial crystal) and they seem not to be affected by a 30 ppm Nb 5+ doping.
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