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Conferences > ACOFT > 2016 > AM5C > AM5C.6

Negative to positive refractive index change in borosilicate BK7 glass through MHz femtosecond laser writing

Wen Qi Zhang, George Chen, David Lancaster, and Tanya Monro

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Abstract

Transition of refractive index changes from negative to positive regime was observed for a range of different pulse energies and laser writing speeds. Optimal conditions for writing microstructured waveguides with suppressed index claddings were determined.

© 2016 Optical Society of America

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