Single-shot fabrication of waveguide ternary gratings with narrow-band optical response

J Nanosci Nanotechnol. 2011 Feb;11(2):1047-51. doi: 10.1166/jnn.2011.3076.

Abstract

Single-shot fabrication of three sets of nano-scale grating structures with different periods is reported, which are constructed on a glass substrate coated with a waveguide layer made of 200-nm-thick indium tin oxide (ITO). Multiple waveguide resonance modes are observed in the visible spectral range with a bandwidth as narrow as 10 nm. Angle-resolved tuning properties of these resonance modes enable simultaneous three-color optical response of the nanodevice to cover the whole visible spectrum. This implies very simple methods for the potential design and realization of flexible optoelectronic devices.