Directional control of light by a nano-optical Yagi–Uda antenna

Kosako, Terukazu; Kadoya, Y.; Hofmann, Holger F.

doi:10.1038/nphoton.2010.34

Cited by 563 publications

(520 citation statements)

References 24 publications

(38 reference statements)

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“…Here, the aperture serves as a nanoscale optical cavity that can be engineered to efficiently direct the emission of emitters placed inside the cavity. Furthermore, in contrast to previous directional antenna designs 9,[21][22][23][24][25] , this structure now enables beaming of fluorescence from many quantum emitters by having separated areas in the structure perform the functions of a cavity (the aperture) and the beaming (the patterned surface).…”

Section: Resultsmentioning

confidence: 99%

Plasmonic beaming and active control over fluorescent emission

Jun

Huang²,

Brongersma³

2011

Nat Commun

194

185

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nanometallic optical antennas are rapidly gaining popularity in applications that require exquisite control over light concentration and emission processes. The search is on for highperformance antennas that offer facile integration on chips. Here we demonstrate a new, easily fabricated optical antenna design that achieves an unprecedented level of control over fluorescent emission by combining concepts from plasmonics, radiative decay engineering and optical beaming. The antenna consists of a nanoscale plasmonic cavity filled with quantum dots coupled to a miniature grating structure that can be engineered to produce one or more highly collimated beams. Electromagnetic simulations and confocal microscopy were used to visualize the beaming process. The metals defining the plasmonic cavity can be utilized to electrically control the emission intensity and wavelength. These findings facilitate the realization of a new class of active optical antennas for use in new optical sources and a wide range of nanoscale optical spectroscopy applications.

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Section: Resultsmentioning

confidence: 99%

Plasmonic beaming and active control over fluorescent emission

Jun

Huang²,

Brongersma³

2011

Nat Commun

194

185

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show abstract

“…A variety of phenomena, including Fano resonances 19,20 and directive in-plane scattering [21][22][23][24][25] , can be obtained via the reduced mirror symmetry of a system. Complete breaking of mirror symmetry can result in optical activity [26][27][28] , circular dichroism 29,30 and asymmetric transmission 31,32 , which have been extensively studied in the context of chiral metamaterials.…”

mentioning

confidence: 99%

Spontaneous chiral symmetry breaking in metamaterials

et al. 2014

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Spontaneous chiral symmetry breaking underpins a variety of areas such as subatomic physics and biochemistry, and leads to an impressive range of fundamental phenomena. Here we show that this prominent effect is now available in artificial electromagnetic systems, enabled by the advent of magnetoelastic metamaterials where a mechanical degree of freedom leads to a rich variety of strong nonlinear effects such as bistability and self-oscillations. We report spontaneous symmetry breaking in torsional chiral magnetoelastic structures where two or more meta-molecules with opposite handedness are electromagnetically coupled, modifying the system stability. Importantly, we show that chiral symmetry breaking can be found in the stationary response of the system, and the effect is successfully demonstrated in a microwave pump-probe experiment. Such symmetry breaking can lead to a giant nonlinear polarization change, energy localization and mode splitting, which provides a new possibility for creating an artificial phase transition in metamaterials, analogous to that in ferrimagnetic domains.

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“…Autostereoscopic 3D display. The ability of the Lucius prism array to directionally allocate the incident light intensity suggests its use in various optical devices [18][19][20][21][22][23][24][25][26] , such as dual-view or autostereoscopic 3D display [27][28][29][30][31] . To perceive a 3D image, human eyes must see different views (binocular disparity), allowing for the sensation of depth known as stereopsis after complicated processing in the brain 29 .…”

Section: Fabrication Of the Lucius Prism Array The Fabrication Of Thementioning

confidence: 99%

Arrays of Lucius microprisms for directional allocation of light and autostereoscopic three-dimensional displays

Yoon

Kang

et al. 2011

Nat Commun

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Directional and asymmetric properties are attractive features in nature that have proven useful for directional wetting, directional flow of liquids and artificial dry adhesion. Here we demonstrate that an optically asymmetric structure can be exploited to guide light with directionality. The Lucius prism array presented here has two distinct properties: the directional transmission of light and the disproportionation of light intensity. These allow the illumination of objects only in desired directions. set up as an array, the Lucius prism can function as an autostereoscopic three-dimensional display.

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Directional control of light by a nano-optical Yagi–Uda antenna

Cited by 563 publications

References 24 publications

Plasmonic beaming and active control over fluorescent emission

Plasmonic beaming and active control over fluorescent emission

Spontaneous chiral symmetry breaking in metamaterials

Arrays of Lucius microprisms for directional allocation of light and autostereoscopic three-dimensional displays

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