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Perfect extinction in subwavelength dual metallic transmitting gratings |
Optics Letters, Vol. 36, Issue 16, pp. 3160-3162 (2011)
http://dx.doi.org/10.1364/OL.36.003160
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Abstract
We investigate the strong electromagnetic coupling that settles in dual metallic grating structures. This coupling is evidenced to lead to a perfect optical extinction in the transmission spectrum. The behavior of this perfect extinction that strongly depends on the longitudinal space and the lateral displacement between the two gratings can be explained by a simple model that describes the interference between a propagating mode and a couple of evanes cent modes. The results show that the electromagnetic transmission of the structure can be tuned by controlling the position of this perfect transmission extinction and thus pave the way to new types of infrared tunable filters.
© 2011 Optical Society of America
OCIS Codes
(230.0230) Optical devices : Optical devices
(350.4600) Other areas of optics : Optical engineering
(110.4234) Imaging systems : Multispectral and hyperspectral imaging
(050.6624) Diffraction and gratings : Subwavelength structures
(230.7408) Optical devices : Wavelength filtering devices
ToC Category:
Optical Devices
History
Original Manuscript: July 5, 2011
Manuscript Accepted: July 5, 2011
Published: August 10, 2011
Citation
Thomas Estruch, Julien Jaeck, Fabrice Pardo, Sophie Derelle, Jérôme Primot, Jean-Luc Pelouard, and Riad Haidar, "Perfect extinction in subwavelength dual metallic transmitting gratings," Opt. Lett. 36, 3160-3162 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-16-3160
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