Abstract

We previously reported [Sci. Rep. 4, 6077 (2014) [CrossRef]  ] that the geometrical randomness of disk-shaped silver nanoparticles, which exhibit high reflection at near-infrared wavelengths, serves as the origin of a particle-dependent localization and hierarchical distribution of optical near-fields in the vicinity of the nanostructure. In this study, we show that the induced polarizations are circular, particularly at resonant wavelengths. We formulate optical near-field processes between nanostructures, accounting for their polarizations and geometries, and attribute circular polarization to the layout-dependent phase difference between the electrical susceptibilities associated with longitudinal and transverse-electric components. This study clarifies the fundamental optical properties of random nanostructured matter and offers generic theoretical concepts for implementing nanoscale polarizations of optical near-fields.

© 2015 Optical Society of America

Full Article  |  PDF Article
More Like This
Propagation of the twin-beam state from the near field to the far field

Justinas Galinis and Ondřej Haderka
J. Opt. Soc. Am. B 34(11) 2406-2413 (2017)

Optical near-field–mediated polarization asymmetry induced by two-layer nanostructures

Makoto Naruse, Naoya Tate, Yasuyuki Ohyagi, Morihisa Hoga, Tsutomu Matsumoto, Hirokazu Hori, Aurélien Drezet, Serge Huant, and Motoichi Ohtsu
Opt. Express 21(19) 21857-21870 (2013)

Local circular polarization observed in surface vortices of optical near-fields

Y. Ohdaira, T. Inoue, H. Hori, and K. Kitahara
Opt. Express 16(5) 2915-2921 (2008)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Supplementary Material (1)

NameDescription
Visualization 1: AVI (4558 KB)      Movie of electron charge distributions within a unit interval of light oscillation (wavelength = 1000 nm).

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (24)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics