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Optical magnetic field mapping using a subwavelength aperture

Title
Optical magnetic field mapping using a subwavelength aperture
Author
이광걸
Issue Date
2013-03
Publisher
Optical SOC Amer
Citation
Optics Express, 2013, 21(5), P.5625-5633
Abstract
Local distribution of the optical magnetic field is a critical parameter in developing materials with artificially engineered optical properties. Optical magnetic field characterization in nano-scale remains a challenge, because of the weak matter-optical magnetic field interactions. Here, we demonstrate an experimental visualization of the optical magnetic field profiles by raster scanning circular apertures in metal film or in a conical probe. Optical magnetic fields of surface plasmon polaritons and radially polarized beam are visualized by measuring the transmission through metallic apertures, in excellent agreements with theoretical predictions. Our results show that Bethe-Bouwkamp aperture can be used in visualizing optical magnetic field profilesⓒ2013 Optical Society of America
URI
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-21-5-5625http://hdl.handle.net/20.500.11754/55069
ISSN
1094-4087
DOI
10.1364/OE.21.005625
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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