TITLE

Nanoscale surface modification of glass using a 1064 nm pulsed laser

AUTHOR(S)
Theppakuttai, Senthil; Chen, Shaochen
PUB. DATE
July 2003
SOURCE
Applied Physics Letters;7/28/2003, Vol. 83 Issue 4, p758
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report a method to produce nanopatterns on borosilicate glass by a Nd:yttrium–aluminum–garnet laser (10 ns, 1064 nm), using silica nanospheres. Nonlinear absorption of the enhanced optical field between the spheres and glass sample is believed to be the primary reason for the creation of nanofeatures on the glass substrate. By shining the laser beam from the backside of the glass sample, the scattering effects are minimized and only the direct field enhancement due to the spheres is utilized for surface patterning. To confirm this, calculations based on the Mie scattering theory were performed, and the resulting intensity as a function of scattering angles are presented. The nanofeatures thus obtained by this method are 350 nm in diameter and the distance between them is around 640 nm, which is same as the size of spheres used.
ACCESSION #
10331063

 

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