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Fabrication of Guided-Mode Resonance Elements by Nanoimprint Lithography

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Abstract:

This paper addresses utilization of nanoimprint lithography for fabrication of nanopatterned resonant photonic elements. These compact periodic films resonate sharply when illuminated with light. The attendant spectral and angular signatures are useful in design of photonic devices for various applications. It is of interest to design and optimize resonant leaky-mode elements with prescribed filtering, polarization, and security attributes. Applying nanoimprint lithography techniques, we fabricate prototype devices using polymer materials produced by Dymax Corporation. The initial prototypes are designed for use in the near-IR and telecommunications spectral regions. We apply holographic surface-relief gratings as master templates. With these templates, we have formed submasters in PDMS (polydimethylsiloxane) to function as imprint stamps for the soft lithography steps. Using these submasters, we fabricate periodic surfaces in UV-curable polymers with resonant films deposited on the surface by sputtering. Several example devices possessing resonance efficiencies exceeding 90% are presented along with their spectral and angular characteristics.

Keywords: GUIDED-MODE RESONANCE; LEAKY MODES; NANOIMPRINT LITHOGRAPHY; SUBWAVELENGTH PERIODIC DEVICES

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2010.2040

Publication date: March 1, 2010

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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