Tsujimoto Manabu, Kakeya Itsuhiro, Kashiwagi Takanari, Minami Hidetoshi, Kadowaki Kazuo
Opt Express. 2016 Mar 7;24(5):4591-4599. doi: 10.1364/OE.24.004591.
Stacks of intrinsic Josephson junctions in BiSrCaCuO emit intense and coherent terahertz waves determined by the internal electromagnetic cavity resonance. We identify the excited transverse magnetic mode by observing the broadly tunable emissions from a nearly square stack and simulating the scattering spectrum. We employ a wedge-type interferometer to measure spatially-integrated power independently of the far-field pattern. The simulation results are in good agreement with observed resonance behaviors as a function of frequency.
铋锶钙铜氧化物中的本征约瑟夫森结堆栈发射出由内部电磁腔共振决定的强烈且相干的太赫兹波。我们通过观察近乎方形堆栈的广泛可调谐发射并模拟散射光谱来识别激发的横向磁模式。我们使用楔形干涉仪独立于远场模式测量空间积分功率。模拟结果与观察到的作为频率函数的共振行为高度吻合。
