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Dispositif de focalisation de lumière à des dimensions sub-longueur d'onde à fort rendement

Abstract : The general field of the invention is that of devices for focusing light with sub-wavelength dimensions comprising at least one focusing structure comprising a metal film comprising a first aperture passing through the film and of dimensions of an order of magnitude that are smaller than the wavelength of use of the focusing device. In the devices according to the invention, the focusing structure comprises at least one optical cavity disposed on the aperture so that, when the structure is illuminated by an optical flux at the wavelength of use of the device, a significant part of this flux is concentrated on the aperture by said cavity. Several embodiments are described using various types of cavity that may comprise plasmon reflectors.
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https://hal-utt.archives-ouvertes.fr/hal-03141782
Contributor : Jean-Baptiste Vu Van Connect in order to contact the contributor
Submitted on : Monday, February 15, 2021 - 3:11:08 PM
Last modification on : Wednesday, September 15, 2021 - 3:04:11 PM

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  • HAL Id : hal-03141782, version 1

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Citation

Marianne Consonni, Jérôme Hazart, Gilles Lerondel. Dispositif de focalisation de lumière à des dimensions sub-longueur d'onde à fort rendement. France, N° de brevet: FR2931560 (B1). 2010. ⟨hal-03141782⟩

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