单个介电纳米激光器具有原子尺度的场域定位

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Updated: Jun 20, 2026

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

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Yun-Hao Ouyang1, Hong-Yi Luan1, Zi-Wei Zhao1

  • 1State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, China.

Nature
|July 17, 2024
PubMed
概括

研究人员开发了单一的介电纳米激光器, 打破了原子尺度场定位的光学衍射极限. 这一突破使得超精确的测量和超高分辨率的成像,

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Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling. This phenomenon, called the nuclear Overhauser enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring spin-active...