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Observation of spin-polarized directive coupling of light at bound states in the continuum

Journal Article · · Optica
Spin-polarized directive coupling of light associated with the photonic quantum spin-Hall effect (QSHE) is a nanoscale phenomenon based on strong spin–orbit interaction that has recently attracted significant attention. Herein, we discuss the experimental manifestation of QSHE intrinsic in the Bloch waves associated with a bound state in the continuum (BIC) of a dielectric photonic crystal metasurface (PhCM). We show numerically that BICs in nanoscale PhCMs have photonic spin angular momentum density transverse to the orbital momentum not only at the interfaces but also inside the confining dielectric medium. Then, we experimentally demonstrate that the fundamental Bloch waves of the BIC mode, macroscopically amplified on resonance, propagate along the symmetry axes of the PhCM obeying spin-momentum locking also at normal incidence, i.e., with no symmetry breaking. This BIC-enhanced spin-directive coupling of light may enable versatile implementations of spin-optical structures, paving the way for novel photonic spin multiplatform devices.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Ministry of Education, University and Research (MIUR)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1597720
Journal Information:
Optica, Journal Name: Optica Journal Issue: 10 Vol. 6; ISSN 2334-2536
Publisher:
Optical Society of AmericaCopyright Statement
Country of Publication:
United States
Language:
English

References (56)

S4 : A free electromagnetic solver for layered periodic structures journal October 2012
Transverse and longitudinal angular momenta of light journal August 2015
Meta-optics and bound states in the continuum journal June 2019
Surface-Enhanced Raman and Fluorescence Spectroscopy with an All-Dielectric Metasurface journal July 2018
Helicity dependent directional surface plasmon polariton excitation using a metasurface with interfacial phase discontinuity journal March 2013
Measurement of bound states in the continuum by a detector embedded in a photonic crystal journal April 2016
Bound states in the continuum journal July 2016
Observation of trapped light within the radiation continuum journal July 2013
Lasing action from photonic bound states in continuum journal January 2017
Chiral quantum optics journal January 2017
Extraordinary momentum and spin in evanescent waves journal March 2014
Spin–orbit coupling in surface plasmon scattering by nanostructures journal November 2014
Quantum state-controlled directional spontaneous emission of photons into a nanophotonic waveguide journal December 2014
Photonic topological insulators journal December 2012
Deterministic photon–emitter coupling in chiral photonic circuits journal July 2015
Topological photonics journal October 2014
Spin–orbit interactions of light journal November 2015
From transverse angular momentum to photonic wheels journal November 2015
Anisotropy-induced photonic bound states in the continuum journal March 2017
Two-dimensional topological photonics journal November 2017
Experimental observation of a polarization vortex at an optical bound state in the continuum journal June 2018
Ultrasensitive hyperspectral imaging and biodetection enabled by dielectric metasurfaces journal April 2019
Interfering resonances and bound states in the continuum journal December 1985
Analysis of guided resonances in photonic crystal slabs journal June 2002
Giant field enhancement in photonic resonant lattices journal October 2015
Strong Coupling between Single Atoms and Nontransversal Photons journal May 2013
Topological Nature of Optical Bound States in the Continuum journal December 2014
Observation of Polarization Vortices in Momentum Space journal May 2018
Singularities and Poincaré Indices of Electromagnetic Multipoles journal April 2019
Z2 Topological Order and the Quantum Spin Hall Effect journal September 2005
Optical Spin-to-Orbital Angular Momentum Conversion in Inhomogeneous Anisotropic Media journal April 2006
Topological insulators and superconductors journal October 2011
Strong coupling between single atoms and non-transversal photons conference May 2013
Photonic spin-controlled multifunctional shared-aperture antenna array conference October 2016
Light Propagation with Phase Discontinuities: Generalized Laws of Reflection and Refraction journal September 2011
Photonic Spin Hall Effect at Metasurfaces journal March 2013
Spin-Optical Metamaterial Route to Spin-Controlled Photonics journal May 2013
Dielectric gradient metasurface optical elements journal July 2014
Chiral nanophotonic waveguide interface based on spin-orbit interaction of light journal September 2014
Quantum spin Hall effect of light journal June 2015
Photonic spin-controlled multifunctional shared-aperture antenna array journal April 2016
Spin-to-orbital angular momentum conversion in focusing, scattering, and imaging systems journal January 2011
Tuning the exponential sensitivity of a bound-state-in-continuum optical sensor journal January 2019
Universal spin-momentum locking of evanescent waves journal January 2016
Label-free sensing of ultralow-weight molecules with all-dielectric metasurfaces supporting bound states in the continuum journal January 2018
Universal spin-momentum locking of evanescent waves conference January 2016
Observation of Trapped Light Within the Radiation Continuum conference January 2013
Photonic Topological Insulators journal January 2013
Photonic spin Hall effect in metasurfaces: a brief review journal July 2016
Optical Biosensors Based on Photonic Crystals Supporting Bound States in the Continuum journal March 2018
Spin-to-orbital angular momentum conversion in focusing, scattering, and imaging systems text January 2011
Transverse and longitudinal angular momenta of light text January 2015
Universal spin-momentum locking of evanescent waves text January 2015
Spin-orbit interactions of light text January 2015
Chiral Quantum Optics text January 2016
Meta-optics and bound states in the continuum preprint January 2018

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