Optical magnetic mirrors without metals
Sheng Liu,Michael B. Sinclair,Thomas S. Mahony,Young Chul Jun,Salvatore Campione,James C. Ginn,Daniel A. Bender,Joel R. Wendt,Jon F. Ihlefeld,Paul G. Clem,Jeremy B. Wright,Igal Brener +11 more
- Vol. 1, Iss: 4, pp 250-256
TLDR
In this article, the magnetic mirror behavior of a low-loss all-dielectric metasurface at infrared optical frequencies through direct measurements of the phase and amplitude of the reflected optical wave was demonstrated.Abstract:
The reflection of an optical wave from metal, arising from strong interactions between the optical electric field and the free carriers of the metal, is accompanied by a phase reversal of the reflected electric field. A far less common route to achieving high reflectivity exploits strong interactions between the material and the optical magnetic field to produce a “magnetic mirror” that does not reverse the phase of the reflected electric field. At optical frequencies, the magnetic properties required for strong interaction can be achieved only by using artificially tailored materials. Here, we experimentally demonstrate, for the first time to the best of our knowledge, the magnetic mirror behavior of a low-loss all-dielectric metasurface at infrared optical frequencies through direct measurements of the phase and amplitude of the reflected optical wave. The enhanced absorption and emission of transverse-electric dipoles placed close to magnetic mirrors can lead to exciting new advances in sensors, photodetectors, and light sources.read more
Citations
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Journal ArticleDOI
Metalenses at visible wavelengths: Diffraction-limited focusing and subwavelength resolution imaging.
Mohammadreza Khorasaninejad,Wei Ting Chen,Robert C. Devlin,Jaewon Oh,Alexander Y. Zhu,Federico Capasso +5 more
TL;DR: The results firmly establish that metalenses can have widespread applications in laser-based microscopy, imaging, and spectroscopy, with image qualities comparable to a state-of-the-art commercial objective.
Journal ArticleDOI
Optically resonant dielectric nanostructures
Arseniy I. Kuznetsov,Andrey E. Miroshnichenko,Mark L. Brongersma,Yuri S. Kivshar,Boris Luk'yanchuk,Boris Luk'yanchuk +5 more
TL;DR: How high-index dielectric nanoparticles can offer a substitute for plasmonic nanoparticle structures, providing a highly flexible and low-loss route to the manipulation of light at the nanoscale is reviewed.
Journal ArticleDOI
All-dielectric metamaterials
TL;DR: This Review presents a broad outline of the whole range of electromagnetic effects observed using all-dielectric metamaterials: high-refractive-index nanoresonators, metasurfaces, zero-index met amaterials and anisotropic metammaterials, and discusses current challenges and future goals for the field at the intersection with quantum, thermal and silicon photonics.
Journal ArticleDOI
A review of metasurfaces: physics and applications.
TL;DR: Recent progress in the physics of metasurfaces operating at wavelengths ranging from microwave to visible is reviewed, with opinions of opportunities and challenges in this rapidly developing research field.
Journal ArticleDOI
High-Efficiency Dielectric Huygens’ Surfaces
Manuel Decker,Isabelle Staude,Matthias Falkner,Jason Dominguez,Dragomir N. Neshev,Igal Brener,Thomas Pertsch,Yuri S. Kivshar +7 more
TL;DR: In this paper, all-dielectric Huygens' metasurfaces are demonstrated for NIR frequencies using arrays of silicon nanodisks as metaatoms.
References
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PatentDOI
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TL;DR: A design criterion that permits truly omnidirectional reflectivity for all polarizations of incident light over a wide selectable range of frequencies was used in fabricating an all-dielectric omnid Directional reflector consisting of multilayer films.