Nano‐Cavity QED with Tunable Nano‐Tip Interaction
Nano‐Cavity QED with Tunable Nano‐Tip Interaction
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DOI：
10.1002/qute.201900087
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发表时间：
2020-01
影响因子：
4.4
通讯作者：
Molly A. May;David Fialkow;Tong Wu;Kyoung-Duck Park;Haixu Leng;J. A. Kropp;T. Gougousi;P. Lalanne-P.
中科院分区：
文献类型：
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作者：
Molly A. May;David Fialkow;Tong Wu;Kyoung-Duck Park;Haixu Leng;J. A. Kropp;T. Gougousi;P. Lalanne-P.
二能级发射体的量子态控制是许多信息处理、计量和传感应用的基础。然而，固态发射体的量子相干光子控制传统上仅限于低温环境，这与可扩展的、广泛分布的技术的实现不兼容。相比之下，具有深亚波长模式体积的等离子体纳米腔最近成为实现室温量子控制的途径。然而，腔型体积的优化、控制和建模仍处于起步阶段。本文扩展了最近的等离子体尖端增强强耦合（TESC）与可配置纳米尖端腔的演示，对腔-发射器相互作用强度及其对尖端位置的依赖进行了系统的实验研究，并通过基于经典电动力学和准正态模式框架的建模进行了扩展。基于这项工作，纳米腔光学作为量子相干相互作用的室温控制的一个有前途的工具，可以激发从量子信息和量子传感到量子化学和分子光力学等领域的新创新。
Quantum state control of two‐level emitters is fundamental for many information processing, metrology, and sensing applications. However, quantum‐coherent photonic control of solid‐state emitters has traditionally been limited to cryogenic environments, which are not compatible with implementation in scalable, broadly distributed technologies. In contrast, plasmonic nano‐cavities with deep sub‐wavelength mode volumes have recently emerged as a path toward room temperature quantum control. However, optimization, control, and modeling of the cavity mode volume are still in their infancy. Here recent demonstrations of plasmonic tip‐enhanced strong coupling (TESC) with a configurable nano‐tip cavity are extended to perform a systematic experimental investigation of the cavity‐emitter interaction strength and its dependence on tip position, augmented by modeling based on both classical electrodynamics and a quasinormal mode framework. Based on this work, a perspective for nano‐cavity optics is provided as a promising tool for room temperature control of quantum coherent interactions that could spark new innovations in fields from quantum information and quantum sensing to quantum chemistry and molecular opto‐mechanics.