|Title:||Pinholes Meet Fabry-Pérot : Perfect and Imperfect Transmission of Waves through Small Apertures|
|Group/Series/Folder:||Record Group 8.15 - Institute for Advanced Study|
Series 3 - Audio-visual Materials
|Notes:||Croucher Advanced Study Institute on New Materials and New Concepts for Controlling Light and Waves. Talk no.14|
Host: HKUST Institute for Advanced Study.
Sponsor: The Croucher Foundation.
Abstract: It has been known for a long time that small holes, of dimensions [lota], are ill suited for transmitting electromagnetic, acoustic or other disturbances of wavelength [lambda]. The normalized transmittance, T[subscript N], i.e., the ratio between the power transmitted and that incident upon the hole, is ~ ([lota] / [lambda])[superscript 4]. More recently, Ebbesen et al. [Nature 391, 667 (1998)] showed that periodic arrays of small apertures in a metallic film can lead to an extraordinary enhancement of the optical transmission. This important discovery has led to numerous ideas for applications in areas such as sensing, near-field microscopy and light harvesting, that can benefit from the concurrent enhancement of the electric field in the vicinity of the apertures.
Duration: 31 min.
|Appears in Series:||8.15:3 - Audio-visual Materials|
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