Laser drilling of nano-pores in sandwiched thin glass membranes

Minrui Yu, Hyun Seok Kim, Robert H. Blick

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

We report on a novel method of using an excimer laser to drill ultra-small pores in borosilicate glass membranes. By introducing a thin layer of liquid between sandwiches of two glass slides, we can shrink the pore size and smoothen the surface on the exit side. We are able to push the minimal exit pore diameter down to 90 nm, well below the laser wavelength of 193 nm. This is achieved with substrates over 150 urn thick. Compared to other methods, this technique is fast, inexpensive, and produces high quality smooth pores.

Original languageEnglish
Pages (from-to)10044-10049
Number of pages6
JournalOptics Express
Volume17
Issue number12
DOIs
StatePublished - 8 Jun 2009

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