Dipole-matter interactions governed by the asymmetry of Maxwell equations

Directionally molding the near-field and far-field radiation lies at the heart of nanophotonics and is crucial for applications such as on-chip information processing and chiral quantum networks. The most fundamental model for radiating structures is a dipolar source located inside a homogeneous matter. However, the influence of matter on the directionality of dipolar radiation is oftentimes overlooked, especially for the near-field radiation. We show that the dipole-matter interaction is intrinsically asymmetric and does not fulfill the duality principle, originating from the inherent asymmetry of Maxwell equations, i.e., electric charge and current are ubiquitous but their magnetic counterparts are non-existent to elusive. Moreover, we find that the asymmetric dipole-matter interaction could offer an enticing route to reshape the directionality of not only the near-field radiation but also the far-field radiation. As an example, both the near-field and far-field radiation directionality of Huygens dipole (located close to a dielectric-metal interface) would be reversed, if the dipolar position is changed from the dielectric region to the metal region.

[1]  C. Roques-Carmes,et al.  Purcell-enhanced X-ray scintillation , 2023, 2302.01300.

[2]  Q. Song,et al.  Guiding flow of light with supersymmetry , 2022, Light: Science & Applications.

[3]  Yuncai Wang,et al.  Transverse Kerker Effect for Dipole Sources. , 2022, Physical review letters.

[4]  P. Wu,et al.  Toroidal‐Assisted Generalized Huygens’ Sources for Highly Transmissive Plasmonic Metasurfaces , 2022, Laser & Photonics Reviews.

[5]  Xiaocong Yuan,et al.  Intrinsic Spin-Momentum Dynamics of Surface Electromagnetic Waves in Dispersive Interfaces. , 2022, Physical review letters.

[6]  S. Bozhevolnyi,et al.  Room-temperature on-chip orbital angular momentum single-photon sources , 2021, Science advances.

[7]  T. Low,et al.  A perspective of twisted photonic structures , 2021, Applied Physics Letters.

[8]  A. Miroshnichenko,et al.  Theory, Observation, and Ultrafast Response of the Hybrid Anapole Regime in Light Scattering , 2021, Laser & Photonics Reviews.

[9]  J. Bowers,et al.  Laser soliton microcombs heterogeneously integrated on silicon , 2021, Science.

[10]  Shenmin Zhang,et al.  Broadband generation of perfect Poincaré beams via dielectric spin-multiplexed metasurface , 2021, Nature Communications.

[11]  Li-ping Zhu,et al.  Directional Polarized Light Emission from Thin‐Film Light‐Emitting Diodes , 2021, Advanced materials.

[12]  Yi Yang,et al.  Toggling Near‐Field Directionality via Polarization Control of Surface Waves , 2021, Laser & Photonics Reviews.

[13]  C. Rockstuhl,et al.  Directional Coupling of Emitters into Waveguides: A Symmetry Perspective , 2019, Laser & Photonics Reviews.

[14]  Yuyu Jiang,et al.  Directional Polaritonic Excitation of Circular, Huygens and Janus Dipoles in Graphene-Hexagonal Boron Nitride Heterostructures , 2021 .

[15]  Haitao Jiang,et al.  Designing All-Electric Subwavelength Metasources for Near-Field Photonic Routings. , 2020, Physical review letters.

[16]  Dirk Englund,et al.  Programmable photonic circuits , 2020, Nature.

[17]  I. Kaminer,et al.  Photonic-Crystal Scintillators: Molding the Flow of Light to Enhance X-Ray and γ-Ray Detection. , 2020, Physical review letters.

[18]  Pei Wang,et al.  Asymmetric Excitation of Surface Plasmon Polaritons via Paired Slot Antennas for Angstrom Displacement Sensing. , 2020, Physical review letters.

[19]  T. Low,et al.  Broadband enhancement of on-chip single-photon extraction via tilted hyperbolic metamaterials , 2020, 2003.12727.

[20]  P. Banzer,et al.  Towards fully integrated photonic displacement sensors , 2019, Nature Communications.

[21]  Min Gu,et al.  Orbital angular momentum holography for high-security encryption , 2019, Nature Photonics.

[22]  Baile Zhang,et al.  Normal Doppler Frequency Shift in Negative Refractive‐Index Systems , 2019, Laser & Photonics Reviews.

[23]  Michela F. Picardi,et al.  Amplitude and Phase Control of Guided Modes Excitation from a Single Dipole Source: Engineering Far‐ and Near‐Field Directionality , 2019, Laser & Photonics Reviews.

[24]  F. J. Rodríguez-Fortuño,et al.  Experimental demonstration of linear and spinning Janus dipoles for polarisation- and wavelength-selective near-field coupling , 2019, Light: Science & Applications.

[25]  F. J. Rodríguez-Fortuño,et al.  Experimental demonstration of linear and spinning Janus dipoles for polarisation- and wavelength-selective near-field coupling , 2019, Light, science & applications.

[26]  F. J. Rodríguez-Fortuño,et al.  Not every dipole is the same: the hidden patterns of dipolar near fields , 2018, Europhysics News.

[27]  H. Herzig,et al.  Magnetic spin–orbit interaction of light , 2018, Light, science & applications.

[28]  Fei Gao,et al.  Superlight inverse Doppler effect , 2018, Nature Physics.

[29]  G. Leuchs,et al.  Transverse Kerker Scattering for Angstrom Localization of Nanoparticles. , 2018, Physical review letters.

[30]  F. J. Rodríguez-Fortuño,et al.  Janus and Huygens Dipoles: Near-Field Directionality Beyond Spin-Momentum Locking. , 2017, Physical review letters.

[31]  Xiao Lin,et al.  Group‐Velocity‐Controlled and Gate‐Tunable Directional Excitation of Polaritons in Graphene‐Boron Nitride Heterostructures , 2018, 1802.08462.

[32]  Siyuan Yu,et al.  Spin-orbit interaction of light induced by transverse spin angular momentum engineering , 2017, Nature Communications.

[33]  Peter Zoller,et al.  Chiral quantum optics , 2016, Nature.

[34]  B. Luk’yanchuk,et al.  Optically resonant dielectric nanostructures , 2016, Science.

[35]  G. Leuchs,et al.  Polarization-controlled directional scattering for nanoscopic position sensing , 2015, Nature Communications.

[36]  Andrey E. Miroshnichenko,et al.  Generalized Brewster effect in dielectric metasurfaces , 2015, Nature Communications.

[37]  M. S. Skolnick,et al.  Chirality of nanophotonic waveguide with embedded quantum emitter for unidirectional spin transfer , 2015, Nature Communications.

[38]  Maik Moeller,et al.  Introduction to Electrodynamics , 2017 .

[39]  Lorenzo Marrucci,et al.  Spin–orbit photonics , 2015, Nature Photonics.

[40]  A. Dereux,et al.  Efficient unidirectional nanoslit couplers for surface plasmons , 2007, cond-mat/0703407.

[41]  K.A. Michalski,et al.  Electromagnetic wave theory , 1987, Proceedings of the IEEE.

[42]  C. Lee Giles,et al.  Electromagnetic scattering by magnetic spheres , 1983 .

[43]  Heinrich Hertz,et al.  Electric Waves: Being Researches on the Propagation of Electric Action with Finite Velocity Through Space , 1962 .

[44]  E. Purcell,et al.  Resonance Absorption by Nuclear Magnetic Moments in a Solid , 1946 .