Micromachined Fabry-Pérot interferometer with embedded nanochannels for nanoscale fluid dynamics.

نویسندگان

  • Koen M van Delft
  • Jan C T Eijkel
  • Dragana Mijatovic
  • Tamara S Druzhinina
  • Helmut Rathgen
  • Niels R Tas
  • Albert van den Berg
  • Frieder Mugele
چکیده

We describe a microfabricated Fabry-Pérot interferometer with nanochannels of various heights between 6 and 20 nm embedded in its cavity. By multiple beam interferometry, the device enables the study of liquid behavior in the nanochannels without using fluorescent substances. During filling studies of ethanol and water, an intriguing filling mode for partially wetting water was observed, tentatively attributed to the entrapment of a large amount of gas inside the channels.

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عنوان ژورنال:
  • Nano letters

دوره 7 2  شماره 

صفحات  -

تاریخ انتشار 2007