Quantitative Determination of Enhanced and Suppressed Transmission through Subwavelength Slit Arrays in Silver Films
arXiv:0708.1886 · doi:10.1103/PhysRevB.77.115411
Abstract
Measurement of the transmitted intensity from a coherent monomode light source through a series of subwavelength slit arrays in Ag films, with varying array pitch and number of slits, demonstrate enhancement (suppression) by as much as a factor of 6 (9) when normalized to that of an isolated slit. Pronounced minima in the transmitted intensity were observed at array pitches corresponding to lambda_SPP, 2lambda_SPP, and 3lambda_SPP where lambda_SPP is the wavelength of the surface plasmon polariton (SPP). Increasing the number of slits to more than four does not increase appreciably the per-slit transmission intensity. These results are consistent with a model for interference between SPPs and the incident wave that fits well the measured transmitted intensity profile.
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Cited by in corpus (7)
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- Extraordinary optical transmission through metal films with sub wavelength holes and slits
- Fundamental mechanism underlying subwavelength optics of metamaterials: Charge oscillation-induced light emission and interference
- Plasmon scattering from holes: from single hole scattering to Young's experiment
- Investigation of Surface Plasmon Resonance in Super-Period Gold Nanoslit Arrays
- Enhancement and Inhibition of Transmission from metal gratings: Engineering the Spectral Response