Document Details

Document Type : Article In Journal 
Document Title :
Experimental Demonstration of In-Plane Negative-Angle Refraction with an Array of Silicon Nanoposts
Experimental Demonstration of In-Plane Negative-Angle Refraction with an Array of Silicon Nanoposts
 
Subject : physics 
Document Language : English 
Abstract : Controlling an optical beam is fundamental in optics.. Recently, unique manipulation of optical wavefronts has been successfully demonstrated by metasurfaces. However, the artificially engineered nanostructures have thus far been limited to operate on light beams propagating out-of-plane. The inplane operation is critical for on-chip photonic applications. Here, we demonstrate an anomalous negative-angle refraction of a light beam propagating along the plane, by designing a thin dielectric array of silicon nanoposts. The circularly polarized dipoles induced by the high-permittivity nanoposts at the scattering resonance significantly shape the wavefrorit of the light beam and bend it anomalously. The unique capability of a thin line of the nanoposts for manipulating in-plane wavefronts makes the device extremely compact. The low loss all-dielectric structure is compatible with complementary metaloxide semiconductor technologies, offering an effective solution for in-plane beam steering and routing for on-chip photonics 
ISSN : 1530-6984 
Journal Name : NANO LETTERS 
Volume : 15 
Issue Number : 3 
Publishing Year : 1435 AH
2015 AD 
Article Type : Article 
Added Date : Monday, August 21, 2017 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
A.M WuWu, A.M InvestigatorDoctorate 
H LiLi, H ResearcherDoctorate 
J.J DuDu, J.J ResearcherDoctorate 
X.J NiNi, X.J ResearcherDoctorate 
Z.L YeYe, Z.L ResearcherDoctorate 
Y WangWang, Y ResearcherDoctorate 
Z shengSheng, Z ResearcherDoctorate 
S.C ZouZou, S.C ResearcherDoctorate 
F.W GanGan, F.W ResearcherDoctorate 
X ZhangZhang, X ResearcherDoctorate 

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