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View article: Sculpting Topological Modes on Photonic Chips by Artificial Gauge Fields
Sculpting Topological Modes on Photonic Chips by Artificial Gauge Fields Open
Significant efforts have been devoted to manipulating topological states, which often manifest as localized modes at interfaces between distinct topological phases. In this work, we demonstrate a versatile approach to sculpting topological…
View article: Shortcuts to adiabatic non-Abelian braiding on silicon photonic chips
Shortcuts to adiabatic non-Abelian braiding on silicon photonic chips Open
Non-Abelian braiding describes the exchange behavior of anyons, useful for encoding qubits for quantum computing. Recently, this concept has been realized in classical photonic and acoustic systems. However, these implementations are const…
View article: Comprehensive review on developments of synthetic dimensions
Comprehensive review on developments of synthetic dimensions Open
The concept of synthetic dimensions has emerged as a powerful framework in photonics and atomic physics, enabling the exploration of high-dimensional physics beyond conventional spatial constraints. Originally developed for quantum simulat…
View article: Shortcuts to adiabatic non-Abelian braiding on silicon photonic chips
Shortcuts to adiabatic non-Abelian braiding on silicon photonic chips Open
The non-Abelian braiding describes the exchange behavior of anyons, which can be leveraged to encode qubits for quantum computing. Recently, this concept has been realized in classical photonic and acoustic systems. However, these implemen…
View article: Fast topological pumps via quantum metric engineering on photonic chips
Fast topological pumps via quantum metric engineering on photonic chips Open
Topological pumps have garnered substantial attention in physics. However, the requirement for slow evolution speed to satisfy adiabaticity greatly restricts their application in on-chip devices. Here, we discover a direct link between adi…
View article: Approaching the adiabatic infimum of topological pumps on thin-film lithium niobate waveguides
Approaching the adiabatic infimum of topological pumps on thin-film lithium niobate waveguides Open
Topological pumps reveal topological insights of adiabatic mode evolution, in which the adiabaticity plays a crucial role. However, the adiabatic infimum, i.e., the possible shortest evolution duration of an adiabatic topological pumping p…
View article: High-dimensional Poincaré beams generated through cascaded metasurfaces for high-security optical encryption
High-dimensional Poincaré beams generated through cascaded metasurfaces for high-security optical encryption Open
Optical encryption plays an increasingly important role in the field of information security owing to its parallel processing capability and low power consumption. Employing the ultrathin metasurfaces in optical encryption has promoted the…
View article: Bound-extended mode transition in type-II synthetic photonic Weyl heterostructures
Bound-extended mode transition in type-II synthetic photonic Weyl heterostructures Open
Photonic structures with Weyl points (WPs), including type-I and type-II, promise nontrivial surface modes and intriguing light manipulations for their three-dimensional topological bands. While previous studies mainly focus on exploring W…
View article: Observation of topology transition in Floquet non-Hermitian skin effects in silicon photonics
Observation of topology transition in Floquet non-Hermitian skin effects in silicon photonics Open
Non-Hermitian physics has greatly enriched our understanding of nonequilibrium phenomena and uncovered novel effects such as the non-Hermitian skin effect (NHSE) that has profoundly revolutionized the field. NHSE is typically predicted in …
View article: Neural network assisted high-spatial-resolution polarimetry with non-interleaved chiral metasurfaces
Neural network assisted high-spatial-resolution polarimetry with non-interleaved chiral metasurfaces Open
Polarimetry plays an indispensable role in modern optics. Nevertheless, the current strategies generally suffer from bulky system volume or spatial multiplexing scheme, resulting in limited performances when dealing with inhomogeneous pola…
View article: Neural network assisted high-spatial-resolution polarimetry with non-interleaved chiral metasurfaces
Neural network assisted high-spatial-resolution polarimetry with non-interleaved chiral metasurfaces Open
Polarimetry plays an indispensable role in modern optics. Nevertheless, the current strategies generally suffer from bulky system volume or spatial multiplexing scheme, resulting in limited performances when dealing with inhomogeneous pola…
View article: Accelerating Thouless pump in bilayer integrated waveguide lattices
Accelerating Thouless pump in bilayer integrated waveguide lattices Open
The Thouless pump refers to the quantized transport of a one-dimensional system under cyclic motion of the system parameters without external forces. This phenomenon has a first Chern class topological invariant and typically requires a sl…
View article: On-chip integration of metasurface-doublet for optical phased array with enhanced beam steering
On-chip integration of metasurface-doublet for optical phased array with enhanced beam steering Open
Optical phased array (OPA), as a promising beam steering technology, however, usually suffers from a narrow field of view (FOV) that limits its performances in applications. A miniaturized compact strategy to enlarge the beam steering angl…
View article: Bifacial-metasurface-enabled pancake metalens with polarized space folding
Bifacial-metasurface-enabled pancake metalens with polarized space folding Open
Replacing traditional refractive lenses with metalenses that have ultrathin and flat architecture could make imaging systems more compact. However, the space between the lens and image is usually the dominating factor in determining the bu…
View article: Anomalous π modes by Floquet engineering in optical lattices with long-range coupling
Anomalous π modes by Floquet engineering in optical lattices with long-range coupling Open
Photonic Floquet topological insulators provide a powerful tool to manipulate the optical fields, which have been extensively studied with only nearest-neighbor coupling. Here, we demonstrate that nontrivial Floquet topological phase and p…
View article: Weyl interface states in non-Hermitian synthetic dimension
Weyl interface states in non-Hermitian synthetic dimension Open
Synthetic dimension has emerged as an attractive concept to explore higher-dimensional physics, yet they are usually formed by Hermitian degrees of freedom. Here, we establish a new platform of non-Hermitian synthetic dimension with unprec…
View article: Gauge‐Induced Floquet Topological States in Photonic Waveguides
Gauge‐Induced Floquet Topological States in Photonic Waveguides Open
Tremendous efforts are devoted to the research of exotic photonic topological states, in which Floquet systems suggest new engineered topological phases and provide a powerful tool to manipulate the optical fields. Here, a gauge‐induced to…
View article: Floquet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>π</mml:mi></mml:math> mode engineering in non-Hermitian waveguide lattices
Floquet mode engineering in non-Hermitian waveguide lattices Open
Floquet topological systems exhibit rich physics associated with quasienergy band structures and new topological states; nevertheless, they are usually explored in Hermitian systems. Recent studies have shown the capability of non-Hermitic…
View article: Artificial gauge induced dispersionless coupling for broadband photonic waveguide integration
Artificial gauge induced dispersionless coupling for broadband photonic waveguide integration Open
Coupling among waveguides plays an important role in photonic integration, while it usually suffers from large wavelength dispersion and structural sensitivity that brings difficulties in broadband and robust photonic chip devices. Here, w…
View article: Highly Efficient Metasurface Quarter‐Wave Plate with Wave Front Engineering
Highly Efficient Metasurface Quarter‐Wave Plate with Wave Front Engineering Open
Metasurfaces with local phase tuning by subwavelength elements promise unprecedented possibilities for ultrathin and multifunctional optical devices in which geometric phase design is widely used due to its resonant‐free and large toleranc…
View article: Demonstration of imaginary-mass particles by optical simulation in non-Hermitian systems
Demonstration of imaginary-mass particles by optical simulation in non-Hermitian systems Open
Unifying quantum mechanics and special relativity, the Dirac equation describes the behaviour of relativistic quantum particles, including imaginary-mass particles with faster-than-light speeds (e.g., tachyon). However, experimental search…
View article: High efficient metasurface quarter-wave plate with wavefront engineering
High efficient metasurface quarter-wave plate with wavefront engineering Open
Metasurfaces with local phase tuning by subwavelength elements promise unprecedented possibilities for ultra-thin and multifunctional optical devices, in which geometric phase design is widely used due to its resonant-free and large tolera…
View article: Subwavelength self-imaging in cascaded waveguide arrays
Subwavelength self-imaging in cascaded waveguide arrays Open
Self-imaging is an important function for signal transport, distribution, and processing in integrated optics, which is usually implemented by multimode interference or diffractive imaging process. However, these processes suffer from the …
View article: Integrated Photonic Devices: Robust and Broadband Optical Coupling by Topological Waveguide Arrays (Laser Photonics Rev. 14(2)/2020)
Integrated Photonic Devices: Robust and Broadband Optical Coupling by Topological Waveguide Arrays (Laser Photonics Rev. 14(2)/2020) Open
Topological designs boost progress in massive photonic integrations. In article number 1900193, Tao Li, Shumin Xiao, and co-workers experimentally demonstrate a robust and broadband optical directional coupler and beam splitter using the c…
View article: Spectral tomographic imaging with aplanatic metalens
Spectral tomographic imaging with aplanatic metalens Open
Tomography is an informative imaging modality that is usually implemented by mechanical scanning, owing to the limited depth-of-field (DOF) in conventional systems. However, recent imaging systems are working towards more compact and stabl…