Article

Polymeric slot waveguide at visible wavelength

Optics Letters (Impact Factor: 3.18). 11/2012; 37(21):4449-51. DOI: 10.1364/OL.37.004449
Source: PubMed

ABSTRACT Polymeric slot waveguide structure, which pushes the mode field toward the surrounding media, was designed and characterized. The slot waveguide was fabricated by using nanoimprint lithography, and the operation of the slot was demonstrated at 633 nm wavelength with an integrated Young interferometer. The experimental result shows that the nanolithography method provides possibilities to fabricate disposable slot waveguide sensors.

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    • "For instance, gratings have been used to establish the light coupling into or out from the waveguide. To enhance the light interaction with the ambient, a waveguide structure consisting of a few hundred nanometerwide slots has been demonstrated [9], [10]. The nanoslot waveguide configuration has an attractive property in simultaneously guiding the light propagation and maintaining a strong light–ambient interaction. "
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