科研之友
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摘要
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 mu m thick. Compared to other methods, this technique is fast, inexpensive, and produces high quality smooth pores.
- 出版日期2009-6-8
