Time-domain analysis of enhanced transmission through a single subwavelength aperture
نویسندگان
چکیده
منابع مشابه
Enhanced light transmission through a single subwavelength aperture.
The optical transmission through a subwavelength aperture in a metal film is strongly enhanced when the incident light is resonant with surface plasmons at the corrugated metal surface surrounding the aperture. Conversely, the aperture acts as a novel probe of the surface plasmons, yielding useful insights for optimizing the transmission enhancement. For the optimal corrugation geometry, a set ...
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متن کاملSplit-ring-resonator-coupled enhanced transmission through a single subwavelength aperture.
We report the enhanced transmission of electromagnetic waves through a single subwavelength aperture by using a split-ring resonator (SRR) at microwave frequencies. By placing a single SRR at the near field of the aperture, strongly localized electromagnetic fields are effectively coupled to the aperture with a radius that is 20 times smaller than the resonance wavelength (r/lambda=0.05). We ob...
متن کاملEnhanced acoustical transmission and beaming effect through a single aperture
J. Christensen,1,* L. Martín-Moreno,2 and F. J. García-Vidal1 1Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain 2Instituto de Ciencia de Materiales de Aragón (ICMA) and Departamento de Física de la Materia Condensada, CSIC–Universidad de Zaragoza, E-50009 Zaragoza, Spain Received 15 February 2010; revised manuscript received 26 March...
متن کاملGratingless enhanced microwave transmission through a subwavelength aperture in a thick metal plate
Remarkably enhanced transmission of microwave radiation through a single subwavelength slit in a thick metallic substrate surrounded by just a pair of parallel deep and narrow grooves is recorded. By also patterning the output face of the metal slab with two grooves there is strong exit beam confinement. There are no gratings in this structure and, hence, the transmission mechanism is not relat...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2005
ISSN: 1094-4087
DOI: 10.1364/opex.13.003535