Optical addressing of nanomechanical metamaterials with subwavelength resolution

Ou, Jun-Yu, Plum, Eric and Zheludev, Nikolai (2018) Optical addressing of nanomechanical metamaterials with subwavelength resolution. Applied Physics Letters, 113 (8). (doi:10.1063/1.5036966).

Record type: Article

Abstract

Metamaterials that offer “on-demand” control of individual metamolecules are termed “randomly accessible metamaterials”. They can be useful for manipulating the wavefront of electromagnetic radiation, tailoring of the nearfield, and ultimately for multichannel data processing. Here we demonstrate how light can be used to actuate individual metamaterial elements on demand. Selectivity is achieved by constructing the metamaterial from nanomechanical elements that are designed to have slightly different mechanical resonance frequencies. Actuation is controlled by modulation of the optical control signal at the mechanical resonance frequencies of targeted elements, providing an all-optical route to randomly accessible metamaterials with spatial resolution beyond the diffraction limit.

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Optical addressing of nanomechanical metamaterials with subwavelength resolution - Accepted Manuscript

Available under License University of Southampton Accepted Manuscript Licence.

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