Abstract
We present a comprehensive study on femtosecond laser-induced refractive index modification in a wide variety of multicomponent glasses grouped as borosilicate, aluminum–silicate, and heavy-metal oxide glasses along with lanthanum–borate and sodium–phosphate glasses. By using high-spatial resolution refractive index profiling techniques, we demonstrate that under a wide range of writing conditions the refractive index modification in multicomponent glasses can be positive, negative, or nonuniform, and exhibits a strong dependence on the glass composition. With the exception of some aluminum–silicate glasses all other glasses exhibited a negative/nonuniform index change. We also demonstrate direct writing of waveguides in photosensitive Foturan® glass with a femtosecond laser without initiating crystallization by thermal treatment. Upon ceramization of lithium–aluminum–silicate glasses such as Foturan®, Zerodur®, and Robax® we observe switching of laser-induced refractive index change from being positive to negative. The measured transmission losses in the waveguides at 1550nm agree with the index profile measurements in alkali-free aluminum–silicate glasses.
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Dates
Type | When |
---|---|
Created | 20 years, 5 months ago (March 31, 2005, 6:33 p.m.) |
Deposited | 2 years ago (Aug. 4, 2023, 4:55 p.m.) |
Indexed | 3 weeks, 5 days ago (Aug. 5, 2025, 9:09 a.m.) |
Issued | 20 years, 4 months ago (April 4, 2005) |
Published | 20 years, 4 months ago (April 4, 2005) |
Published Online | 20 years, 4 months ago (April 4, 2005) |
Published Print | 20 years, 4 months ago (April 15, 2005) |
@article{Bhardwaj_2005, title={Femtosecond laser-induced refractive index modification in multicomponent glasses}, volume={97}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1876578}, DOI={10.1063/1.1876578}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Bhardwaj, V. R. and Simova, E. and Corkum, P. B. and Rayner, D. M. and Hnatovsky, C. and Taylor, R. S. and Schreder, B. and Kluge, M. and Zimmer, J.}, year={2005}, month=apr }