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Эта публикация цитируется в 14 научных статьях (всего в 14 статьях)
ОПТИКА, ЛАЗЕРНАЯ ФИЗИКА
Mapping electromagnetic fields near a subwavelength hole
D. V. Permyakova, I. S. Mukhinab, I. I. Shishkina, A. K. Samuseva, P. A. Belova, Yu. S. Kivsharac a St. Petersburg National Research University of Information Technologies, Mechanics and Optics
b Saint Petersburg State University
c Nonlinear Physics Centre, Research School of Physical Sciences and Engineering, Australian National University, Canberra
Аннотация:
We study, both experimentally and theoretically, the scattering of
electromagnetic waves by a subwavelength hole fabricated in a thin metallic
film. We employ the scanning near-field optical microscopy in order to
reconstruct experimentally the full three-dimensional structure of the
electromagnetic fields in the vicinity of the hole. We observe an
interference of all excited waves with an incident laser beam which allows us
to gain the information about the wave phases. Along with the well-known
surface plasmon polaritons propagating primarily in the direction of the
incident beam polarization, we observe the free-space radiation diffracted by
the hole. We compare the experimental results with the fields of pure
electric and pure magnetic dipoles as well as with direct numerical
simulations. We confirm that a single hole in a thin metallic film excited at
the normal incidence manifests itself as an effective magnetic dipole in the
visible spectral range.
Поступила в редакцию: 27.03.2014 Исправленный вариант: 05.05.2014
Образец цитирования:
D. V. Permyakov, I. S. Mukhin, I. I. Shishkin, A. K. Samusev, P. A. Belov, Yu. S. Kivshar, “Mapping electromagnetic fields near a subwavelength hole”, Письма в ЖЭТФ, 99:11 (2014), 724–728; JETP Letters, 99:11 (2014), 622–626
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/jetpl3746 https://www.mathnet.ru/rus/jetpl/v99/i11/p724
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