Modification of refractive index in Ag/Na ion-exchanged glasses by vacuum-ultraviolet pulse laser irradiation

Laser-induced refractive index modification in Ag+ ion exchanged waveguides on glass substrates was observed. Waveguiding effects were measured, and an increase in refractive index of more than 2×10−3 was deduced. Refractive index profiles show that the maximum radiation-induced difference is attain...

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Bibliographic Details
Published in:Applied physics letters 2001-03, Vol.78 (13), p.1844-1846
Main Authors: Ruschin, S., Sugioka, K., Yarom, G., Akane, T., Midorikawa, K.
Format: Article
Language:English
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Summary:Laser-induced refractive index modification in Ag+ ion exchanged waveguides on glass substrates was observed. Waveguiding effects were measured, and an increase in refractive index of more than 2×10−3 was deduced. Refractive index profiles show that the maximum radiation-induced difference is attained 4–5 μm below the surface. Possible mechanisms for the material modification are discussed.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1357216