Tuning Optical Discs for Plasmonic Applications
We present simple physical and chemical procedures that allow tuning and modification of the topography of gratings present in optical storage discs into geometries optimal for grating coupled plasmon resonance excitation. After proper metal coating, the tuned surfaces exhibit sharp plasmon resonances that can be excited at wavelengths ranging from 260 nm to over 2.7 μm with relatively high quality factors. As an immediate exemplary application, use of such optimized gratings in aqueous medium for refractive index measurement is demonstrated.
KeywordsDiffraction gratings Surface plasmons Plasmonics
- 13.Raether H (1988) Surface plasmons on smooth and rough surfaces and on gratings, chapter 6. Springer-Verlag, BerlinGoogle Scholar
- 14.Maier SA (2007) Plasmonics: fundamentals and applications, chapter 5. Springer, New YorkGoogle Scholar
- 17.Kneipp K, Kneipp H, Itzkan I, Dasari RR, Feld MS (2002) Surface enhanced Raman scattering and biophysics. J Phys Chem 14:597–624Google Scholar
- 20.Gurel K, Kaplan B, Guner H, Bayindir M, Dana A (2009) A compact filter based on anomalous transmission in grating coupled plasmon resonance. Appl Phys Lett (in press)Google Scholar