Refractive-Index Changes Caused by Proton Radiation in Silicate Optical Glasses
Applied Optics, Vol. 41, Issue 4, pp. 678-684 (2002)
http://dx.doi.org/10.1364/AO.41.000678
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Abstract
We have studied experimentally, by using a differential interferometric technique, the effect of proton radiation on the refractive index of commercial (Schott) silicate crown glasses, BK7 and LaK9, and their radiation-resistant counterparts. The strongest effect was observed for the radiation-hard lanthanum crown LaK9G15: At a 0.65-Mrad dose the index change was approximately 3 × 10−5. Radiation-hard glasses are used in optical systems operating in radiation environments because they prevent spectral transmission degradation in the visible. However, such glasses are not protected against radiation-induced refractive-index perturbations, and a diffraction-limited optical system based on such glasses may fail owing to radiation-induced aberrations.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(350.5610) Other areas of optics : Radiation
(350.6090) Other areas of optics : Space optics
Citation
Andrei I. Gusarov, Dominic Doyle, Alex Hermanne, Francis Berghmans, Michel Fruit, Gerd Ulbrich, and Michel Blondel, "Refractive-Index Changes Caused by Proton Radiation in Silicate Optical Glasses," Appl. Opt. 41, 678-684 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-4-678
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