标题： 关于两种介质界面处的呼吸模式导致自旋波的辐射和引导 显示英文标题

标题： On the breathing modes at the interfaces of two medium leading to radiation and guiding of spin waves

摘要： 本文研究了在太赫兹（THz）频率范围内旋转波在陀磁波导中的传播和辐射。 由于在成像、光谱分析和集成电路中的应用，太赫兹辐射引起了广泛关注，但传统等离子体波导的双向传播限制了其在非互易器件如隔离器和开关中的潜力。 我们探讨了磁偏置半导体，特别是InSb的应用，它们在太赫兹频率下表现出陀磁特性，为面临高频限制的铁氧体提供了有前景的替代方案。 通过分析偶极天线和环形天线的近场区域，我们研究了磁子与光子之间的耦合以及具有虚数阻抗的反应模式的形成。 我们展示了旋转向量如何打破自旋-动量锁定，导致波的单向传播，并研究了这些介质中呼吸模式和双曲模式以及截止模式的出现。 我们的研究结果加深了对太赫兹波导基本物理机制的理解，并为其在先进辐射和引导结构开发中的潜力提供了依据。 显示英文摘要

摘要： This paper investigates the propagation and radiation of spin waves in gyroelectric waveguides within the terahertz (THz) frequency range. With applications in imaging, spectroscopy, and integrated circuits, THz radiation has garnered significant interest, but the two-way propagation of traditional plasmonic waveguides limits their potential in nonreciprocal devices like isolators and switches. We explore the use of magnetically biased semiconductors, particularly InSb, which exhibit gyroelectric behavior at THz frequencies, offering promising alternatives to ferrites that face limitations at higher frequencies. Through the analysis of the near field region of a dipole antenna and a loop antenna, we examine the coupling between magnons and photons and the formation of reactive modes with imaginary impedance. We demonstrate how gyrotropy breaks spin-momentum locking, leading to unidirectional propagation of waves, and investigate the emergence of breathing and hyperbolic modes, along with cut-off modes, in these media. Our findings provide a deeper understanding of the underlying physics of THz waveguides and their potential for the development of advanced radiating and guiding structures.