Spectral analysis of resonant transmission of light through a single sub-wavelength slit
2004 (English)In: Optics Express, ISSN 1094-4087, Vol. 12, no 4, 623-632 p.Article in journal (Refereed) Published
We analyze the spectral properties of resonant transmission of light through a sub-wavelength slit in a metal film. We show that the enhanced transmission can be understood in terms of interfering surface-wave-like modes propagating in the slit. We characterize the effect of geometrical and material properties of the slit on the transmission spectrum. Furthermore, we show that the wavelength of the transmission resonance strongly depends on the surrounding medium. This effect may be utilized in sensors, imaging, and the detection of, e.g. biomolecules.
Place, publisher, year, edition, pages
2004. Vol. 12, no 4, 623-632 p.
extraordinary optical-transmission, boundary-element method, near-field, metallic gratings, hole arrays, nanoparticles, aperture, sensors, films
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-23200DOI: 10.1364/OPEX.12.000623ISI: 000189188800013ScopusID: 2-s2.0-2942729830OAI: oai:DiVA.org:kth-23200DiVA: diva2:341898
QC 20100525 QC 201110312010-08-102010-08-102011-10-31Bibliographically approved