Light diffraction by a subwavelength circular aperture

Content Provider	Semantic Scholar
Author	Chang, Che-Wei Sarychev, Andrey K. Shalaev, Vladimir M.
Copyright Year	2005
Abstract	Diffraction of normally incident light by a subwavelength circular aperture is calculated analytically. The aperture is opened on a perfectly conducting planar screen with infinitesimal thickness. In our model, the aperture is replaced by uniform magnetic currents and charges. The model allows one to obtain the normalized cross section for the aperture radius up to half of the wavelength, which exceeds the 0.2 wavelength limit of the Bethe-Bouwkamp's dipole model [1-3]. Also, in addition to reproducing the (ka)4 dependence, which is characteristic of the dipole mode, our uniform field model explains the transmission enhancement obtained in Abajo's numerical simulation [4].
Starting Page	351
Ending Page	355
Page Count	5
File Format	PDF HTM / HTML
DOI	10.1002/lapl.200510006
Volume Number	2
Alternate Webpage(s)	https://engineering.purdue.edu/~shalaev/Publication_list_files/lpl10006d-1c_351-355.pdf
Alternate Webpage(s)	http://dynamo.ecn.purdue.edu/~shalaev/Publication_list_files/lpl10006d-1c_351-355.pdf
Alternate Webpage(s)	https://engineering.purdue.edu/~shalaev/Publication_list_files/lpl0006e.pdf
Alternate Webpage(s)	https://doi.org/10.1002/lapl.200510006
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article