A subwavelength slit as a quarter-wave retarder

PF Chimento, NV Kuzmin, J Bosman, PFA Alkemade, GW Hooft, ER Eliel

Research output: Contribution to journalArticleScientificpeer-review


We have experimentally studied the polarization-dependent transmission properties of a nanoslit in a gold film as a function of its width. The slit exhibits strong birefringence and dichroism. We find, surprisingly, that the transmission of the polarization parallel to the slit only disappears when the slit is much narrower than half a wavelength, while the transmission of the perpendicular component is reduced by the excitation of surface plasmons. We exploit the slit¿s dichroism and birefringence to realize a quarter-wave retarder.
Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalOptics Express
Issue number24
Publication statusPublished - 2011


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