Focus

Plasmonics

Plasmonics takes advantage of the coupling of light to charges like electrons in metals, and allows breaking the diffraction limit for the localization of light into subwavelength dimensions enabling strong field enhancements. This Focus Issue covers some of the recent developments in the field including, nonlinear plasmonics, acousto-magneto effects, plasmons on graphene and biosensor applications.

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Editorial

Surface plasmon resurrection pp707

doi:10.1038/nphoton.2012.296

The realization that coupling of photons to charges at metal interfaces allows subdiffraction-limit localization of light has revived the field of surface plasmons. How long will it last?


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Commentary

Plasmonics for future biosensors pp709 - 713

Alexandre G. Brolo

doi:10.1038/nphoton.2012.266

Confinement and enhancement of light by plasmonics allows a high density of independent subwavelength sensor elements to be constructed in micrometre-sized arrays. It is relatively straightforward to integrate those sensors into microfluidics chips, making plasmonic structures promising for use in next-generation modern biosensors.


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Interview

Perspective on plasmonics pp714 - 715

doi:10.1038/nphoton.2012.275

Joachim Krenn was one of the early pioneers of modern surface plasmon optics, and has almost 8,000 citations to his work. Nature Photonics spoke to Krenn about the field's origins.


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Reviews

Ultrafast acousto-magneto-plasmonics pp728 - 736

Vasily V. Temnov

doi:10.1038/nphoton.2012.220

Surface plasmon polaritons have become popular because of their subwavelength confinement and the possibility to perform ultrasensitive optical measurements. This article reviews the development of active plasmonic devices and new metrologies using hybrid multilayer structures combining with the magnetic, acoustic and ultrafast effects.

Nonlinear plasmonics pp737 - 748

Martti Kauranen & Anatoly V. Zayats

doi:10.1038/nphoton.2012.244

One of the main features of plasmonics is the possibility to locally enhance the intensity of electromagnetic fields. This enables strong nonlinear optical effects in structures with metal inclusions, including metamaterials. This Review discusses nonlinear effects in plasmonic structures and presents an overview of applications and limitations.

Graphene plasmonics pp749 - 758

A. N. Grigorenko, M. Polini & K. S. Novoselov

doi:10.1038/nphoton.2012.262

Many researchers hope to merge plasmonics and graphene photonics to combine their useful features. The properties and characteristics of plasmons on graphene are reviewed. Prospects for possible future applications are discussed.


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