Index and density changes induced by proton radiation in lanthanum crown glass

A. Gusarov; D. Doyle; A. Hermanne; F. Berghmans

doi:10.1063/1.1373411

Index and density changes induced by proton radiation in lanthanum crown glass

A. Gusarov, D. Doyle, A. Hermanne, F. Berghmans

Research output › peer-review

Abstract

We studied the refractive index and density changes in cerium-doped lanthanum crown glass irradiated in air with 38.5 MeV protons. At a low proton fluence, the index change is linear with dose, and reaches 2.4 × 10^-5 at 2.7 × 10¹² p/cm² (0.65 Mrad dose). The rate of index change decreases with the proton fluence, but at high total dose (10¹⁴p/cm²) radiation-induced surface dilatation and birefringence start to appear. Our results show that the present concept of radiation-hard optical glass should be revised and that a high dose of proton radiation can produce index changes sufficient for the fabrication of integrated optical devices.

Original language	English
Pages (from-to)	3196-3198
Number of pages	3
Journal	Applied Physics Letters
Volume	78
Issue number	21
DOIs	https://doi.org/10.1063/1.1373411
State	Published - 21 May 2001

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.1373411

Cite this

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title = "Index and density changes induced by proton radiation in lanthanum crown glass",

abstract = "We studied the refractive index and density changes in cerium-doped lanthanum crown glass irradiated in air with 38.5 MeV protons. At a low proton fluence, the index change is linear with dose, and reaches 2.4 × 10-5 at 2.7 × 1012 p/cm2 (0.65 Mrad dose). The rate of index change decreases with the proton fluence, but at high total dose (1014p/cm2) radiation-induced surface dilatation and birefringence start to appear. Our results show that the present concept of radiation-hard optical glass should be revised and that a high dose of proton radiation can produce index changes sufficient for the fabrication of integrated optical devices.",

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AU - Gusarov, A.

AU - Doyle, D.

AU - Hermanne, A.

AU - Berghmans, F.

PY - 2001/5/21

Y1 - 2001/5/21

N2 - We studied the refractive index and density changes in cerium-doped lanthanum crown glass irradiated in air with 38.5 MeV protons. At a low proton fluence, the index change is linear with dose, and reaches 2.4 × 10-5 at 2.7 × 1012 p/cm2 (0.65 Mrad dose). The rate of index change decreases with the proton fluence, but at high total dose (1014p/cm2) radiation-induced surface dilatation and birefringence start to appear. Our results show that the present concept of radiation-hard optical glass should be revised and that a high dose of proton radiation can produce index changes sufficient for the fabrication of integrated optical devices.

AB - We studied the refractive index and density changes in cerium-doped lanthanum crown glass irradiated in air with 38.5 MeV protons. At a low proton fluence, the index change is linear with dose, and reaches 2.4 × 10-5 at 2.7 × 1012 p/cm2 (0.65 Mrad dose). The rate of index change decreases with the proton fluence, but at high total dose (1014p/cm2) radiation-induced surface dilatation and birefringence start to appear. Our results show that the present concept of radiation-hard optical glass should be revised and that a high dose of proton radiation can produce index changes sufficient for the fabrication of integrated optical devices.

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