Scholarlink

<p>Nanocavity optical trapping has enabled the isolation and precise positioning of nanoscale objects, from single molecules to quantum emitters. Yet, practically deployable single quantum sources require more than trapping, i.e., they require real-time control over position, polarization, brightness, and wavelength. Achieving such dynamic modulation remains a critical challenge, but is key to realizing ultra-secure quantum communication and adaptive quantum sensing. Here, we present tip-enhanced nano-optical trapping spectroscopy, utilizing shear-force atomic force microscopy in liquid, to achieve deterministic and dynamically reconfigurable single quantum emitters. This approach enables precise positioning and dipole alignment of cavity-coupled single quantum dots (QDs), driven by nano-optical gradient forces and field-induced torque, with simultaneous nano-spectroscopic analysis. Moreover, dynamic control of the tip-cavity mode volume and tip-induced pressure allows further tuning of trapping and coupling behaviors, modulating the quantum emission characteristics, e.g., brightness and photon energy, from the weak to the strong coupling regime. This work represents a significant advancement toward realizing the vast potential of QDs in quantum applications, such as tuning emission properties of single&#xa0;photon sources for quantum switches and modulators, or implementing quantum gates via plexciton state manipulation.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Deterministic, dynamically reconfigurable single quantum emitters enabled by tip-enhanced nano-optical trapping spectroscopy

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年6月22日

查看全文
  • Yeonjeong Koo,
  • Jaehun Shin,
  • Jonggeun Hwang,
  • Hyeongwoo Lee,
  • Hyeonmin Oh,
  • Sujeong Kim,
  • Su Jin Kim,
  • Junghoon Jahng,
  • Hyun Seok Lee,
  • P. James Schuck,
  • Yung Doug Suh,
  • Reuven Gordon,
  • Kyoung-Duck Park

摘要

Nanocavity optical trapping has enabled the isolation and precise positioning of nanoscale objects, from single molecules to quantum emitters. Yet, practically deployable single quantum sources require more than trapping, i.e., they require real-time control over position, polarization, brightness, and wavelength. Achieving such dynamic modulation remains a critical challenge, but is key to realizing ultra-secure quantum communication and adaptive quantum sensing. Here, we present tip-enhanced nano-optical trapping spectroscopy, utilizing shear-force atomic force microscopy in liquid, to achieve deterministic and dynamically reconfigurable single quantum emitters. This approach enables precise positioning and dipole alignment of cavity-coupled single quantum dots (QDs), driven by nano-optical gradient forces and field-induced torque, with simultaneous nano-spectroscopic analysis. Moreover, dynamic control of the tip-cavity mode volume and tip-induced pressure allows further tuning of trapping and coupling behaviors, modulating the quantum emission characteristics, e.g., brightness and photon energy, from the weak to the strong coupling regime. This work represents a significant advancement toward realizing the vast potential of QDs in quantum applications, such as tuning emission properties of single photon sources for quantum switches and modulators, or implementing quantum gates via plexciton state manipulation.