Design and implementation of plasmonic metamaterials and devices

Fortuño, Rodríguez; José, Francisco

doi:10.4995/thesis/10251/31207

Cited by 1 publication

(1 citation statement)

References 226 publications

(258 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, in more complicated (yet typical cases of) structured optical fields (such as optical vortices and near-field phenomena), the direction of the Poynting vector can differ from the wavevector direction. [15][16][17][18] In these cases, the Poynting vector p acquires an additional spin momentum density p s , introduced for the first time by Belifante, 19,20 and can be expressed 3 as a sum of canonical and spin contributions: p = p o + p s .…”

Section: Resultsmentioning

confidence: 99%

Spin-Momentum Locking in the Near Field of Metal Nanoparticles

et al. 2017

View full text Add to dashboard Cite

Light carries both spin and momentum. Spin-orbit interactions of light come into play at the subwavelength scale of nano-optics and nano-photonics, where they determine the behaviour of light. These phenomena, in which the spin affects and controls the spatial degrees of freedom of light, are attracting rapidly growing interest. Here we present results on the spin-momentum locking in the near field of metal nanostructures supporting localized surface resonances. These systems can confine light to very small dimensions below the diffraction limit, leading to a striking near-field enhancement. In contrast to the propagating evanescent waves of surface plasmon-polariton modes, the electromagnetic near-field of localized surface resonances does not exhibit a definite position-independent momentum or polarization. Our results can be useful to investigate the spin-orbit interactions of light for complex evanescent fields. Note that the spin of the incident light can control the rotation direction of the canonical momentum.Comment: 23 pages and 7 figures, ACS Photonics - open acces

show abstract