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An extraordinary directive radiation based on optical antimatter at near infrared |
Optics Express, Vol. 18, Issue 24, pp. 25068-25074 (2010)
http://dx.doi.org/10.1364/OE.18.025068
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Abstract
In this paper we discuss and experimentally demonstrate that in a quasi- zero-average-refractive-index (QZAI) metamaterial, in correspondence of a divergent source in near infrared (λ = 1.55 μm) the light scattered out is extremely directive (Δθout = 0.06°), coupling with diffraction order of the alternating complementary media grating. With a high degree of accuracy the measurements prove also the excellent vertical confinement of the beam even in the air region of the metamaterial, in absence of any simple vertical confinement mechanism. This extremely sensitive device works on a large contact area and open news perspective to integrated spectroscopy.
© 2010 OSA
OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(160.3918) Materials : Metamaterials
(050.5298) Diffraction and gratings : Photonic crystals
ToC Category:
Metamaterials
History
Original Manuscript: August 24, 2010
Revised Manuscript: October 28, 2010
Manuscript Accepted: October 29, 2010
Published: November 16, 2010
Citation
Vito Mocella, Principia Dardano, Ivo Rendina, and Stefano Cabrini, "An extraordinary directive radiation based on optical antimatter at near infrared," Opt. Express 18, 25068-25074 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-24-25068
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