174 citations · 1.1k across the 18 of their papers we have counts for
18 papers
Extraction of power transmission parameters from PT-symmetric waveguides
Chengnian Huang, Zhihao Lan, Menglin L. N. Chen +1
The PT-symmetric waveguides have been frequently discussed in the photonics community due to their extraordinary properties. Especially, the study of power transmission is signific…
Spin and Orbital Angular Momenta of Electromagnetic Waves: From Classical to Quantum Forms
Wei E. I. Sha, Zhihao Lan, Menglin L. N. Chen +2
Angular momenta of electromagnetic waves are important both in concepts and applications. In this work, we systematically discuss two types of angular momenta, i.e., spin angular m…
Large-area quantum-spin-Hall waveguide states in a three-layer topological photonic crystal heterostructure
Zhihao Lan, Menglin L. N. Chen, Jian Wei You +1
Topological photonic edge states are conventionally formed at the interface between two domains of topologically trivial and nontrivial photonic crystals. Recent works exploiting p…
A brief review of topological photonics in one, two, and three dimensions
Zhihao Lan, Menglin L. N. Chen, Fei Gao +2
Topological photonics has attracted increasing attention in recent years due to the unique opportunities it provides to manipulate light in a robust way immune to disorder and defe…
Comparative study of Hermitian and non-Hermitian topological dielectric photonic crystals
Menglin L. N. Chen, Li Jun Jiang, Shuang Zhang +3
The effects of gain and loss on the band structures of a bulk topological dielectric photonic crystal (PC) with symmetry and the PC-air-PC interface are studied based on f…
Approaching the Fundamental Limit of Orbital Angular Momentum Multiplexing Through a Hologram Metasurface
Shuai S. A. Yuan, Jie Wu, Menglin L. N. Chen +9
Establishing and approaching the fundamental limit of orbital angular momentum (OAM) multiplexing are necessary and increasingly urgent for current multiple-input multiple-output r…
Coexistence of pseudospin- and valley-Hall-like edge states in a photonic crystal with symmetry
Menglin L. N. Chen, Li Jun Jiang, Zhihao Lan +1
We demonstrate the coexistence of pseudospin- and valley-Hall-like edge states in a photonic crystal with symmetry, which is composed of three interlacing triangular subla…
Local orbital-angular-momentum dependent surface states with topological protection
Menglin L. N. Chen, Li Jun Jiang, Zhihao Lan +1
Chiral surface states along the zigzag edge of a valley photonic crystal in the honeycomb lattice are demonstrated. By decomposing the local fields into orbital angular momentum (O…
First-principle calculation of Chern number in gyrotropic photonic crystals
Ran Zhao, Guo-Da Xie, Menglin L. N. Chen +3
As an important figure of merit for characterizing the quantized collective behaviors of the wavefunction, Chern number is the topological invariant of quantum Hall insulators. Che…
Pseudospin-Polarized Topological Line Defects in Dielectric Photonic Crystals
Menglin L. N. Chen, Li Jun Jiang, Zhihao Lan +1
Electromagnetic topological insulators have been explored extensively due to the robust edge states they support. In this work, we propose a topological electromagnetic system base…
Quasi-Continuous Metasurfaces for Orbital Angular Momentum Generation
Menglin L. N. Chen, Li Jun Jiang, Wei E. I. Sha
A quasi-continuous composite perfect electric conductor-perfect magnetic conductor metasurface and a systematic metasurface design process are proposed for the orbital angular mome…
Generation of Orbital Angular Momentum by a Point Defect in Photonic Crystals
Menglin L. N. Chen, Li Jun Jiang, Wei E. I. Sha
As an attractive degree of freedom in electromagnetic (EM) waves, the orbital angular momentum (OAM) enables infinite communication channels for both classical and quantum communic…
Orbital Angular Momentum Generation and Detection by Geometric-Phase Based Metasurfaces
Menglin L. N. Chen, Li Jun Jiang, Wei E. I. Sha
We present a comprehensive review on the geometric-phase based metasurfaces for orbital angular momentum(OAM) generation and detection. These metasurfaces manipulate the electromag…
Detection of Orbital Angular Momentum with Metasurface at Microwave Band
Menglin L. N. Chen, Li Jun Jiang, Wei E. I. Sha
An orbital angular momentum (OAM) detection approach at microwave band is proposed. A transmittance function is exploited to model a transmissive metasurface. Then the metasurface…
Ultrathin Complementary Metasurface for Orbital Angular Momentum Generation at Microwave Frequencies
Menglin L. N. Chen, Li Jun Jiang, Wei E. I. Sha
Electromagnetic (EM) waves with helical wavefront carry orbital angular momentum (OAM), which is associated with the azimuthal phase of the complex electric field. OAM is a new deg…
Polarization Control by Using Anisotropic 3D Chiral Structures
Menglin L. N. Chen, Li Jun Jiang, Wei E. I. Sha +2
Due to the mirror symmetry breaking, chiral structures show fantastic electromagnetic (EM) properties involving negative refraction, giant optical activity, and asymmetric transmis…
Artificial Perfect Electric Conductor-Perfect Magnetic Conductor Anisotropic Metasurface for Generating Orbital Angular Momentum of Microwave with Nearly Perfect Conversion Efficiency
Menglin L. N. Chen, Li Jun Jiang, Wei E. I. Sha
Orbital angular momentum (OAM) is a promising degree of freedom for fundamental studies in electromagnetics and quantum mechanics. The unlimited state space of OAM shows a great po…
The 2D Linearly Polarized Near-Field Focusing Based on Angularly Discretized Slot Arrays
Menglin Chen, Shulabh Gupta, Zilong Ma +1
A 2-D near-field focusing design is proposed based on the circular slot array waveguide structures, synthesized using the array-factor theory, and demonstrated by full-wave simulat…