• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nature >Topologically enabled ultrahigh-Qguided resonances robust to out-of-plane scattering
【24h】

Topologically enabled ultrahigh-Qguided resonances robust to out-of-plane scattering

机译：拓扑启用的超高Q导引共振对平面外散射具有鲁棒性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Because of their ability to confine light, optical resonators(1-3) are of great importance to science and technology, but their performance is often limited by out-of-plane-scattering losses caused by inevitable fabrication imperfections(4,5). Here we theoretically propose and experimentally demonstrate a class of guided resonances in photonic crystal slabs, in which out-of-plane-scattering losses are strongly suppressed by their topological nature. These resonances arise when multiple bound states in the continuum-each carrying a topological charge(6)-merge in momentum space and enhance the quality factors Q of all nearby resonances in the same band. Using such resonances in the telecommunication regime, we experimentally achieve quality factors as high as 4.9 x 10(5)-12 times higher than those obtained with standard designs-and this enhancement remains robust for all of our samples. Our work paves the way for future explorations of topological photonics in systems with open boundary conditions and for their application to the improvement of optoelectronic devices in photonic integrated circuits.
机译：由于其能够约束光的能力，光学谐振器（1-3）在科学和技术中非常重要，但其性能通常受到不可避免的制造缺陷（4,5）引起的面外散射损耗的限制。在这里，我们从理论上提出并通过实验证明了光子晶体平板中的一类引导共振，其中平面外散射损耗受其拓扑性质的强烈抑制。当连续体中的每个束缚态（每个载有拓扑电荷（6））在动量空间中合并并增强同一频带中所有附近共振的品质因数Q时，就会产生这些共振。在电信领域中使用这种谐振，我们通过实验获得的质量因子比标准设计获得的质量因子高4.9 x 10（5）-12倍，并且这种增强对我们所有的样本都非常可靠。我们的工作为将来在具有开放边界条件的系统中探索拓扑光子学及其在改进光子集成电路中的光电器件中的应用铺平了道路。

著录项

  • 来源
    《Nature》 |2019年第7779期|501-504|共4页
  • 作者

    Jin Jicheng; Yin Xuefan; Ni Liangfu; Soljacic Marin; Zhen Bo; Peng Chao;

  • 作者单位

    Peking Univ Dept Elect State Key Lab Adv Opt Commun Syst & Networks Beijing Peoples R China;

    MIT Dept Phys Cambridge MA 02139 USA;

    Univ Penn Dept Phys & Astron Philadelphia PA 19104 USA;

    Peking Univ Dept Elect State Key Lab Adv Opt Commun Syst & Networks Beijing Peoples R China|Minist Educ Nanooptoelect Frontier Ctr Beijing Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号