Article
Optics
Mikko Partanen, Jukka Tulkki
Summary: We present a position- and time-dependent optical force theory for optomechanics of dispersive 3D photonic materials and devices. The theory enables calculation of the dynamical state of the coupled field-material system and its interference with other excitations of the material. Computer simulations of energy and momentum flows through a silicon crystal with anti-reflective structured interfaces are presented as an example. The theory can be applied using commercially available simulation tools to analyze optical forces in complex photonic materials and devices.
Article
Optics
Mikko Partanen, Jukka Tulkki
Summary: The relativistic theory of time- and position-dependent energy and momentum densities of light in low-loss dispersive media has been a largely unsolved challenge until now. This work presents the stress-energy-momentum tensors of the field and dispersive medium using the mass-polariton theory of light, demonstrating symmetry and invariant properties for all inertial observers. The consistent theory provides further insight into the classical limit of the quantum mechanical spin of light in a medium and predicts experimentally accessible phenomena such as the atomic mass density wave associated with light.
Article
Chemistry, Physical
Xia Cao, Huijing Xiang, Ping Ma, Yang Jie, Yanrong Zhang, Hengyu Guo, Ning Zheng, Zhong Lin Wang
Summary: The advancement of science and technology has led to astonishing developments, such as the invention of an easy and efficient power generator (EEPG) that can drive fluorescent tube lamps and charge mobile phones. With ultrahigh voltage, it can be used for lighting, charging, and collecting wind and tidal energy. It overcomes the limitations of traditional power generation methods that require specific conditions.
Correction
Engineering, Electrical & Electronic
E. Congr
Summary: A production error in the December 2020 issue of IEEE Industrial Electronics Magazine led to the omission of funding details in an article about Utility-Scale Energy Storage Systems.
IEEE INDUSTRIAL ELECTRONICS MAGAZINE
(2021)
Article
Physics, Multidisciplinary
Yuanfei Hui, Zhiwei Cui, Shenyan Guo, Yiping Han
Summary: This study focuses on the dynamical properties of vortex electromagnetic waves propagating in dispersive left-handed materials (LHMs), using the spectral domain method to derive analytical expressions for the electric and magnetic field components. It is found that the direction of transverse energy flow in LHMs is reversed compared to free space, higher angular frequency waves improve dynamical characteristics, and topological charge and polarization state significantly affect dynamical quantities.
WAVES IN RANDOM AND COMPLEX MEDIA
(2023)
Article
Chemistry, Physical
Lucas Huber, Sebastian F. Maehrlein, Feifan Wang, Yufeng Liu, X. -Y. Zhu
Summary: The ultrafast optical Kerr effect is commonly used to investigate structural dynamics and interactions of materials, with non-degenerate mixing schemes allowing for more accurate detection. Two-color experiments can reveal sources of temporal dynamics in the OKE signal, showing how birefringence in crystalline solids can entirely change the character of the signal.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Physics, Multidisciplinary
Jamison Sloan, Nicholas Rivera, John D. Joannopoulos, Marin Soljacic
Summary: Time-varying optical media with actively modulated dielectric properties introduce novel effects in light propagation and are of current interest. In the quantum domain, time-dependent media can convert vacuum fluctuations into real photons. Despite being weak, these dynamical vacuum effects (DVEs) can be enhanced through nanophotonics techniques. This study presents a theory of weakly modulated DVEs in arbitrary nanostructured systems, incorporating time-modulation and dispersion through time-translation-breaking linear response theory. An efficient scheme for generating entangled surface polaritons is proposed based on time-modulation of the optical phonon frequency of a polar insulator.
PHYSICAL REVIEW LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Guangdong Liu, Kaiyin Zhang
Summary: The Debye empirical formulas are commonly used to describe the dispersion characteristics of common media, and a modified CSI method has been successfully applied for the reconstruction of internal breast composition.
INTERNATIONAL JOURNAL OF IMAGING SYSTEMS AND TECHNOLOGY
(2022)
Article
Optics
Lazo M. Manojlovic
Summary: This paper presents a relativistic approach to the well-known Balazs's thought experiment. Contradicting the special theory of relativity, the Abraham energy-momentum tensor should imply that the Abraham's form of the photon momentum inside the transparent medium violates the special theory of relativity. By relying on a simple Balazs's thought experiment, observed in two inertial frame of references, one motionless and one moving, it was shown that the Abraham's form of the photon momentum inside the transparent medium is in accordance with the special theory of relativity.
APPLIED PHYSICS B-LASERS AND OPTICS
(2023)
Article
Optics
Afshin Moradi
Summary: The distribution of electromagnetic energy density in a dispersive and dissipative metamaterial consisting of arrays of wires and split-ring resonators was obtained using a simple approach. The study found that energy stored in the system can be regarded to consist of energy density of electric and magnetic fields plus energy density terms related to response of the medium. By comparing equations of motion of polarization and magnetization of the system with corresponding differential equations of appropriate RLC circuits, energy density formulas of the medium were derived.
JOURNAL OF MODERN OPTICS
(2021)
Article
Optics
Ruo-Yang Zhang, Zhongfei Xiong, Neng Wang, Yuntian Chen, C. T. Chan
Summary: This paper presents generalized Minkowski and Abraham electromagnetic energy-momentum tensors for various time-dependent electromagnetic fields in bianisotropic media with frequency dispersion, obtained using Noether's theorem and the Abrahamization procedure. Results show that in source-free homogeneous media, the generalized Minkowski momenta for both real fields and analytic signals are conserved, while Abraham momenta may change over time. Additionally, the energy-momentum tensor for analytic signals derived from the action principle can describe the conservation law of time-averaged fields and the envelope evolution of waves in quasi-monochromatic approximation.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2021)
Article
Optics
Jiangwei Chen
Summary: This study proposes a new approach to fluid velocity measurement by modifying the coordinate transformation matrix and adopting optical path instead of space distance. It shows that this method provides a rational expression for Doppler frequency shift and offers a new perspective on electromagnetic topics in media. The findings contribute to the understanding of the foundations of relativity.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2022)
Article
Business
Shu-Heng Chen, Xia-Ping Cao, Kun-Ben Lin, Jing-Bo Huang, Yubing Zhang, Hung-Wen Lin
Summary: This paper examines the effects of financial transparency and media coverage on the Chinese stock market. In China, the media operates within a regulatory system where media information serves as a guide for news. With retail investors dominating the Chinese market and financial information often being manipulated, the reliability of financial information is of great interest. The research finds that high media coverage and high transparency can transform negative momentum profit in the stock market into positive momentum profit, while low media coverage and low transparency still result in price reversal.
EMERGING MARKETS FINANCE AND TRADE
(2022)
Correction
Physics, Multidisciplinary
Jonas Strunz, Jonas Wiedenmann, Christoph Fleckenstein, Lukas Lunczer, Wouter Beugeling, Valentin L. Mueller, Pragya Shekhar, Niccolo Traverso Ziani, Saquib Shamim, Johannes Kleinlein, Hartmut Buhmann, Bjoern Trauzettel, Laurens W. Molenkamp
Summary: An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Article
Optics
Xiang Xi, Jingwen Ma, Zhong-Hao Zhou, Xin-Xin Hu, Yuan Chen, Chang-Ling Zou, Chun-Hua Dong, Xiankai Sun
Summary: The experimental investigation showed that the optical force exerted by a Gaussian beam inside a solid dielectric displays angular symmetry, with components having different angular mode numbers. This result cannot be solely explained by the Lorentz or Einstein-Laub formulations but requires a combination of Lorentz force with additional electrostrictive force for explanation.
