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Ultrafast Laser Processing of Hybrid Micro- and Nano-structures in Silicate Glasses

Published online by Cambridge University Press:  23 June 2011

Pavel Mardilovich ,
Luke Fletcher ,
Neil Troy ,
Lihmei Yang ,
Huan Huang ,
Subhash Risbud  and
Denise M. Krol
Pavel Mardilovich
Affiliation:
Department of Chemical Engineering and Materials Science, University of California, DavisOne Shields Ave, Davis, CA 95616, U.S.A.
Luke Fletcher
Affiliation:
Department of Applied Science, University of California, Davis One Shields Ave, Davis, CA 95616, U.S.A.
Neil Troy
Affiliation:
Department of Applied Science, University of California, Davis One Shields Ave, Davis, CA 95616, U.S.A.
Lihmei Yang
Affiliation:
PolarOnyx Inc., 2526 Qume Drive, Suites 17 & 18, San Jose, CA 95131
Huan Huang
Affiliation:
PolarOnyx Inc., 2526 Qume Drive, Suites 17 & 18, San Jose, CA 95131
Subhash Risbud
Affiliation:
Department of Chemical Engineering and Materials Science, University of California, DavisOne Shields Ave, Davis, CA 95616, U.S.A.
Denise M. Krol
Affiliation:
Department of Applied Science, University of California, Davis One Shields Ave, Davis, CA 95616, U.S.A.
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Abstract

This study describes the fabrication of hybrid micro- and nanostructures of semiconductor nanocrystals arranged in microscopic lines inside of a borosilicate glass doped with CdSxSe1-x. This was performed using a two step process of (1) ultrafast laser modification and (2) heat treatment. The glass was photomodified using focused sub-picosecond infra-red pulses with 1 MHz repetition rate to create linear domains with local compositional variations. Heat treating the sample at temperatures near glass transition preferentially precipitated semiconductor in the modified regions, as evidenced by confocal fluorescence microscopy. The optical properties of the precipitated nanocrystals varied with heat treatment duration.

Keywords

optical propertiesnucleation & growthnanoscale
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1365: Symposium TT – Laser-Material Interactions at Micro/Nanoscales , 2011 , mrss11-1365-tt02-06
Copyright
Copyright © Materials Research Society 2011

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References

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