T T Truong et al 2009 Nanotechnology 20 434011 doi:10.1088/0957-4484/20/43/434011
T T Truong1,2,3, J Maria1,2,3, J Yao1,2,3, M E Stewart1,2,3, T-W Lee4, S K Gray5, R G Nuzzo1,2,3 and J A Rogers1,2,3,6
Show affiliationsWe describe a class of plasmonic crystal that consists of square arrays of nanoposts formed by soft nanoimprint lithography. As sensors, these structure show somewhat higher bulk refractive index sensitivity for aqueous solutions in the visible wavelength range as compared to plasmonic crystals consisting of square arrays of nanowells with similar dimensions, with opposite trends for the case of surface bound layers in air. Three-dimensional finite-difference time-domain simulations quantitatively capture the key features and assist in the interpretation of these and related results.
Condensed matter: electrical, magnetic and optical
Issue 43 (28 October 2009)
Received 15 May 2009
Published 2 October 2009
T T Truong et al 2009 Nanotechnology 20 434011
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