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Three‐dimensional subwavelength confinement of a photonic nanojet using a plasmonic nanoantenna GAP
Author(s) -
Hasan Mehdi,
Simpson Jamesina J.
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28680
Subject(s) - plasmon , finite difference time domain method , electric field , wavelength , microwave , optics , photonics , materials science , volume (thermodynamics) , optoelectronics , physics , quantum mechanics
Using 3D finite‐difference time‐domain modeling, a microsphere‐generating nanojet and gold nanoantenna gap are optimized to achieve 3D nanojet confinement to a subwavelength volume of about 0.009 µm 3 (wherein the edges of the volume are defined at 1/e 2 of the maximum electric‐field intensity) for an incident wavelength of 633 nm. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2700–2706, 2014