TITLE

High aspect ratio nanochannel machining using single shot femtosecond Bessel beams

AUTHOR(S)
Bhuyan, M. K.; Courvoisier, F.; Lacourt, P. A.; Jacquot, M.; Salut, R.; Furfaro, L.; Dudley, J. M.
PUB. DATE
August 2010
SOURCE
Applied Physics Letters;8/23/2010, Vol. 97 Issue 8, p081102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report high aspect ratio nanochannel fabrication in glass using single-shot femtosecond Bessel beams of sub-3 μJ pulse energies at 800 nm. We obtain near-parallel nanochannels with diameters in the range 200–800 nm, and aspect ratios that can exceed 100. An array of 230 nm diameter channels with 1.6 μm pitch illustrates the reproducibility of this approach and the potential for writing periodic structures. We also report proof-of-principle machining of a through-channel of 400 nm diameter in a 43 μm thick membrane. These results represent a significant advance of femtosecond laser ablation technology into the nanometric regime.
ACCESSION #
53421598

 

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