5 papers
Quantitative symmetry-breaking and nonlinear harmonic generation in plasmonics
Hongyu Liu, Zhi-Qiang Miao, Jingfeng Yao +2
We develop a quantitative mathematical theory that offers new perspectives on nonlinear harmonic generation in plasmonic structures arising from symmetry breaking. Focusing on seco…
Spatiotemporal Co-reflection with Spacetime Discontinuities at Moving Interfaces
Yongge Wang, Jingfeng Yao, Chengxun Yuan +1
The control of reflection and refraction at interfaces using engineered media is central to numerous optical technologies, with negative refraction and the suppression of backscatt…
Breaking the Limitations of Temporal Modulation via Mixed Continuity Conditions
Yongge Wang, Jingfeng Yao, Ying Wang +2
The conventional description of time-varying media assumes that electromagnetic fields evolve according to fixed continuity conditions during parameter jumps. Here we reveal that t…
Topological Braiding and Dynamic Probing of Phase Transitions at Temporal Interfaces in Non-Hermitian Synthetic Dimensions
Yuanhang Jiang, Jianfei Li, Chengxi Yang +6
Non-Hermitian systems give rise to distinct topological phenomena, yet their manifestations at temporal interfaces characterized by abrupt changes in system parameters remain large…
A new approach for solving the problem of creation of inverse electron distribution function and practical recommendations for experimental searches for such media in glow discharges with hollow and flat cathodes
Chengxun Yuan, E. A. Bogdanov, A. A. Kudryavtsev +2
This paper proposes a novel approach for creating an inverse electron distribution function (EDF). Based on the obtained criteria for the formation of an inverse EDF in a non-unifo…