Theoretical analysis and experimental demonstration of resonant light scattering from metal nanostrips on quartz

Using the Green's tensor area integral equation method and reflection spectroscopy, resonant light scattering from rectangular gold nanostrips on quartz substrates fabricated with electron-beam lithography is analyzed theoretically and demonstrated experimentally. Theory and experiments are compared and found in a good agreement. Design curves presenting the scattering resonance wavelength as a function of the nanostrip width allow one, by carefully choosing the strip width and thickness, to realize the resonance at a given wavelength in a broad wavelength spectrum ranging from the visible (similar to 600 nm) to the near infrared including telecommunication wavelengths (similar to 1600 nm). (c) 2008 Optical Society of America