Measurement of Photon Sorting at Microwave Frequencies in a Cavity Array Metasurface

Mandel, Isroel M.; Hooper, Ian R.; Gollub, Jonah N.; Hibbins, Alastair P.; Crouse, David T.

doi:10.1109/tap.2015.2458011

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…[25] Recent developments in metasurfaces have enabled us to gain better control over wavefronts, light-matter and spin-orbit interactions. [26] In addition, applications of these improved metamaterials in lateral trapping and longitudinal separation of metal nanoparticles (using metalens), [27] photon sorting, [28,29] generating complex plasmonic fields, [30] vortex beam arrays, [31] optical tractor beams, [32] etc., have garnered widespread attention amongst researchers of the modern era. Furthermore, employing metasurfaces and plasmonic structures in spin-dependent optics allows us to manipulate both surface waves and far field.…”

Section: Introductionmentioning

confidence: 99%

Optical Sorting of a Plasmonic or Dielectric or Chiral Mie Object Using a Single Metasurface

2021

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Identifying an object, be it of dielectric or plasmonic or chiral nature, by only using light beam is familiarized as optical sorting. As far as is known, a single optical setup is not reported so far, where these three different kinds of Mie sized particles can exhibit completely distinct behaviors. Chemical-based sorting of these various types of particles is still considered as a notable industrial problem due to the use of very expensive chemicals. This work presents a novel all-optical technique to distinguish classes of nanoscale Mie objects by separately placing them over a metasurface consisting of double-lined gold nanostructures. The proposed setup promotes an effective on-chip material-based optical sorting of silica (a dielectric object), gold (a plasmonic object), and chiral nanospheres by generating a dual surface plasmon polariton (SPP) energized plasmonic complex field, which induces fully different behaviors in Mie scatterers having dissimilar material properties. For instance, when simple plane wave is imposed underneath the metasurface, plasmonic object experiences the counterintuitive optical pulling force, dielectric object experiences pushing force, whereas the chiral object experiences optical lateral force. The proposed optical setup may introduce a new method of all-optical sorting without using chemicals or costly materials.

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Section: Introductionmentioning

confidence: 99%

Optical Sorting of a Plasmonic or Dielectric or Chiral Mie Object Using a Single Metasurface

2021

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Anti-Hermitian photodetector facilitating efficient subwavelength photon sorting

et al. 2018

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The ability to split an incident light beam into separate wavelength bands is central to a diverse set of optical applications, including imaging, biosensing, communication, photocatalysis, and photovoltaics. Entirely new opportunities are currently emerging with the recently demonstrated possibility to spectrally split light at a subwavelength scale with optical antennas. Unfortunately, such small structures offer limited spectral control and are hard to exploit in optoelectronic devices. Here, we overcome both challenges and demonstrate how within a single-layer metafilm one can laterally sort photons of different wavelengths below the free-space diffraction limit and extract a useful photocurrent. This chipscale demonstration of anti-Hermitian coupling between resonant photodetector elements also facilitates near-unity photon-sorting efficiencies, near-unity absorption, and a narrow spectral response (∼ 30 nm) for the different wavelength channels. This work opens up entirely new design paradigms for image sensors and energy harvesting systems in which the active elements both sort and detect photons.

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Measurement of Photon Sorting at Microwave Frequencies in a Cavity Array Metasurface

Cited by 2 publications

References 16 publications

Optical Sorting of a Plasmonic or Dielectric or Chiral Mie Object Using a Single Metasurface

Optical Sorting of a Plasmonic or Dielectric or Chiral Mie Object Using a Single Metasurface

Anti-Hermitian photodetector facilitating efficient subwavelength photon sorting

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