越南范朗大学Minh C. Tran团队从波数演化视角研究了二元波导阵列中布洛赫-齐纳振荡的光学模拟。相关论文发表在2025年3月24日出版的《物理评论A》杂志上。

研究组借助基于波数的方法研究了二元波导阵列（BWA）中布洛赫振荡和齐纳隧穿的光学模拟。他们分析地推导出了两个非常简单的定律，描述了BWA中光束中心波数的演变，这有助于分析地获得由于带间跃迁而发生齐纳隧穿的传播距离，以及光束到达转折点并改变方向的距离。

这些距离仅取决于线性势的强度和输入光束的初始波数。研究组还表明，克尔型的非线性对布洛赫-齐纳振荡有不利影响。

附：英文原文

Title: Optical analogs of Bloch-Zener oscillations in binary waveguide arrays: Wave-number-evolution perspective

Author: Minh C. Tran, Truong X. Tran

Issue&Volume: 2025/03/24

Abstract: We study optical analogs of Bloch oscillations and Zener tunneling in binary waveguide arrays (BWAs) with the help of the wave-number-based approach. We analytically derive two very simple laws describing the evolution of the central wave numbers of beams in BWAs that help us analytically obtain the propagation distances where the Zener tunneling takes place due to the interband transition and the distances where beams reach the turning points and change direction. These distances just depend on the strength of the linear potential and the initial wave number of input beams. We also show that nonlinearity of the Kerr type has a detrimental influence on the Bloch-Zener oscillations.

DOI: 10.1103/PhysRevA.111.033525

Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.111.033525