超快太赫兹超导体范德华超材料光子开关

IF 3.7 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Advanced Photonics Research Pub Date : 2024-06-02 DOI:10.1002/adpr.202400045
Kaveh Delfanazari
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摘要

高温层状超导体(HTS)BSCCO 是太赫兹科学与技术领域的关键量子材料平台之一。开发紧凑、稳定、可靠的 BSCCO 太赫兹光子集成电路元件,可有效控制和操纵太赫兹波辐射,尤其适用于未来的通信系统和网络应用。本文报告了超快太赫兹超材料光子集成电路的设计、仿真和建模,该集成电路基于几纳米厚的 HTS BSCCO 范德华(vdWs),能够在窄频率范围内以恒定的传输系数主动调制相位。同时,超材料电路可作为振幅调制器工作,而不会在不同频段显著改变相位。在超短光脉冲的作用下,太赫兹超材料的瞬态调制动力学具有 50 ps 的快速切换时间尺度。本文讨论了 BSCCO vdW 超材料阵列中皮秒光物质相互作用、库珀对断裂、光诱导的准粒子产生和重组、声子瓶颈效应以及玻色子的发射和弛豫等动力学问题,以探讨多功能超导光子集成电路在通信和量子技术中的潜在应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Ultrafast Terahertz Superconductor Van der Waals Metamaterial Photonic Switch

The high-temperature layered superconductor (HTS) BSCCO is one of the key quantum material platforms in THz science and technology. Compact, stable, and reliable BSCCO THz photonic integrated circuit components can be developed to effectively and efficiently control and manipulate THz wave radiation, especially for future communication systems and network applications. Herein, the design, simulation, and modeling of ultrafast THz metamaterial photonic integrated circuits are reported on a few nanometer-thick HTS BSCCO van der Waals (vdWs), capable of the active modulation of phase with constant transmission coefficient over a narrow-frequency range. Meanwhile, the metamaterial circuit works as an amplitude modulator without significantly changing the phase in a different frequency band. Under the application of ultrashort optical pulses, the transient modulation dynamics of the THz metamaterial offer a fast-switching timescale of 50 ps. The dynamics of picosecond light–matter interaction, Cooper pairs breaking, photoinduced quasiparticles generation and recombination, phonon bottleneck effect, and emission and relaxation of bosons in BSCCO vdW metamaterial arrays are discussed for the potential application of multifunctional superconducting photonic integrated circuits in communication and quantum technologies.

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