arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2107.05239physics.opticsphysics.app-ph
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相变钙钛矿可调谐微激光器

Phase-change perovskite tunable microlaser

Jingyi Tian, Giorgio Adamo, Hailong Liu, Mengfei Wu, Maciej Klein, Jie Deng, Norman Soo Seng Ang, Ramón Paniagua-Domínguez, Hong Liu, Arseniy I. Kuznetsov, Cesare Soci

摘要:

自激光器发明以来,新增益介质和器件架构的采用为需要特定功率、尺寸、光谱、空间和时间可调谐性的各种应用提供了解决方案。本文介绍了一种基于相变钙钛矿超颖表面的新型可调谐半导体激光器,该超颖表面同时作为增益介质和光腔。作为原理论证的证明,我们制作了一个亚波长薄的钙钛矿超颖表面支持连续束缚态(BIC)。在钙钛矿结构相变时,其折射率和增益都显著变化,从而诱导快速(1.35 nm/K速率)和宽光谱可调谐性(在近红外中>15 nm)、偏振涡旋之间的确定性空间模式跳跃以及微激光器的滞后光学双稳性。这些特性突出了相变钙钛矿可调谐激光器的独特性,它可以在紧凑和低成本的光学多路复用器,传感器,存储器和激光雷达中找到广泛的应用。

英文摘要:

Since the invention of the laser, adoption of new gain media and device architectures has provided solutions to a variety of applications requiring specific power, size, spectral, spatial, and temporal tunability. Here we introduce a fundamentally new type of tunable semiconductor laser based on a phase-change perovskite metasurface that acts simultaneously as gain medium and optical cavity. As a proof of principle demonstration, we fabricate a subwavelength-thin perovskite metasurface supporting bound states in the continuum (BICs). Upon the perovskite structural phase transitions, both its refractive index and gain vary substantially, inducing fast (1.35 nm/K rate) and broad spectral tunability (>15 nm in the near-infrared), deterministic spatial mode hopping between polarization vortexes, and hysteretic optical bistability of the microlaser. These features highlight the uniqueness of phase-change perovskite tunable lasers, which may find wide applications in compact and low-cost optical multiplexers, sensors, memories, and LIDARs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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