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Fine control of the chiral light-matter interaction at the nanoscale, by exploiting designed metamaterial architecture, represents a cutting-edge craft in the field of biosensing, quantum and classic nanophotonics. Recently, artificially…

Optical chirality is central to many industrial photonic technologies including enantiomer identification, ellipsometry-based tomography and spin multiplexing in optical communication. However, a substantial chiral response requires a…

Optics · Physics 2018-07-11 Longqing Cong , Prakash Pitchappa , Nan Wang , Ranjan Singh

Tellurium (Te) is an elemental semiconductor with a simple chiral crystal structure. Te in a two-dimensional (2D) form synthesized by solution-based method shows excellent electrical, optical, and thermal properties. In this work, the…

Materials Science · Physics 2023-09-13 Chang Niu , Gang Qiu , Yixiu Wang , Pukun Tan , Mingyi Wang , Jie Jian , Haiyan Wang , Wenzhuo Wu , Peide D. Ye

We have made measurements of microwave transmission over the 12 - 18 GHz range and through a simple metamaterial exhibiting a negative index of refraction. The metamaterial consisted of an array of wires cladded in dielectric embedded in a…

Applied Physics · Physics 2019-08-06 Mohamed Zein Radwan , Graeme Dewar

Here, we present an exploratory study of the potential applications of electrically biased materials that possess a nonreciprocal and non-Hermitian electromagnetic response analogous to the electronic response of field-effect transistors.…

We evaluated the total electron chirality in alanine, serine, and valine, which are molecules that have chiral structures. Previously, it has been considered that the total electron chirality of molecules composed of only light elements…

Atomic and Molecular Clusters · Physics 2021-08-02 Masato Senami , Tomoki Shimizu

This paper presents a algebraic analysis of electromagnetic chirality-induced negative refractive index in a four-level atomic medium. According to analyze mathematically its argument of the complex refractive index for one circular…

Quantum Physics · Physics 2024-02-16 Shun-Cai Zhao , Qi-Xuan Wu , Ai-Ling Gong

The recently proposed concept of metagrating enables wavefront manipulation of electromagnetic (EM) waves with unitary efficiency and relatively simple fabrication requirements. Herein, two-dimensional (2D) metagratings composed of a 2D…

Classical Physics · Physics 2022-04-13 Mahdi Rahmanzadeh , Amin Khavasi

Incorporating chiral organic cations into organic-inorganic hybrid materials has been shown to enable the inorganic sublattice to display chiroptical properties. We report a new two-dimensional magnetic (S=1/2) chiral metal halide material,…

A clear understanding of chirality in spin-active electronic states is discussed in order to address confusions about chiral effects recently discovered in materials science. Electronic toroidal monopole $G_0$ can serve as a measure of…

Materials Science · Physics 2024-09-12 Hiroaki Kusunose , Jun-ichiro Kishine , Hiroshi M. Yamamoto

A measure of the degree of polarization for the three-dimensional polarization matrix (coherence matrix) of an electromagnetic field is proposed, based on Rayleigh scattering. The degree of polarization, due to dipole scattering of the…

Optics · Physics 2009-11-13 M. R. Dennis

Rectification of microwave radiation (20-40 GHz) by a line boundary between two two-dimensional metals on a silicon surface was observed and investigated at different temperatures, in-plane magnetic fields and microwave powers. The…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 I. Hoxha , S. A. Vitkalov , N. A. Zimbovskaya , M. P. Sarachik , T. M. Klapwijk

Conventional linear optical activity effects are widely used for studying chiral materials. However, poor contrast and artifacts due to sample anisotropy limit the applicability of these methods. Here we demonstrate that nonlinear…

Biological Physics · Physics 2016-02-16 Mei-Yu Chen , Mikko J. Huttunen , Che-Wei Kan , Yen-Yin Lin , Cin-Wei Ye , Meng-Jer Wu , Hsiang-Lin Liu , Shi-Wei Chu

Chiral molecules interact and react differently with other chiral objects, depending on their handedness. Therefore, it is essential to understand and ultimately control the evolution of molecular chirality during chemical reactions.…

We consider reflector imaging in a weakly random waveguide. We address the situation in which the source is farther from the reflector to be imaged than the energy equipartition distance, but the receiver array is closer to the reflector to…

Analysis of PDEs · Mathematics 2013-04-17 Habib Ammari , Josselin Garnier , Wenjia Jing

The development of quantitative methods for characterizing molecular chirality can provide an important tool for studying chirality induced phenomena in molecular systems. Significant progress has been made in recent years toward…

Chemical Physics · Physics 2025-03-06 Jichen Feng , Ethan Abraham , Joseph Subotnik , Abraham Nitzan

Molecular chirality has traditionally been viewed as a binary property where a molecule is classified as either chiral or achiral, yet in the recent decades mathematical methods for quantifying chirality have been explored. Here we use toy…

Chemical Physics · Physics 2024-11-28 Ethan Abraham , Abraham Nitzan

Hannan Limitation successfully links the directivity characteristics of 2D arrays with the aperture gain limit, providing the radiation efficiency upper limit for large 2D planar antenna arrays. This demonstrates the inevitable radiation…

Information Theory · Computer Science 2024-09-04 Ran Ji , Chongwen Huang , Xiaoming Chen , Wei E. I. Sha , Zhaoyang Zhang , Jun Yang , Kun Yang , Chau Yuen , Mérouane Debbah

Chiral metasurfaces provide invaluable tools capable of controlling structured light required for biosensing, photochemistry, holography, and quantum photonics. Here we suggest and realize a universal strategy for controlling the chiral…

The electrical and optical properties of ordered passive arrays, constituted of inductive and capacitive components, are usually deduced from Kirchhoff's rules. Under the assumption of periodic boundary conditions, comparable results may be…

Other Condensed Matter · Physics 2009-11-11 Steffen Schäfer , Laurent Raymond , Gilbert Albinet
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