近日，德国马克斯·普朗克光科学研究所Vahid Sandoghdar团队报道了单表面吸附分子的纳电子伏特傅里叶极限跃迁。2026年6月25日出版的《科学》杂志发表了这项成果。

高分辨率光谱学能够探测弱相互作用和细微现象。尽管这类测量在气相和晶体材料中已是常规操作，但对于表面吸附物种的研究尚未达到最终的光谱分辨率——即消除退相干、使跃迁线宽由激发态寿命决定的分辨率水平。

在这项工作中，研究组设计了一种表面制备与沉积方法，能够对有机晶体表面上的单个分子实现傅里叶极限电子跃迁的测量。通过在液氦温度下进行光谱学和超分辨显微成像，研究组揭示了吸附物种的光谱和空间特征。该结果为固态物理学研究奠定了基础，有望将埃级空间分辨率与高分辨率激光光谱学相结合。

附：英文原文

Title: Nano–electron volt Fourier-limited transition of a single surface-adsorbed molecule

Author: Masoud Mirzaei, Alexey Shkarin, Burak Gurlek, Johannes Zirkelbach, Ashley J. Shin, Irena Deperasińska, Boleslaw Kozankiewicz, Tobias Utikal, Stephan Gtzinger, Vahid Sandoghdar

Issue&Volume: 2026-06-25

Abstract: High-resolution spectroscopy allows the probing of weak interactions and subtle phenomena. Although such measurements are routinely performed in the gas phase and in crystalline materials, studies of adsorbed species on surfaces have previously fallen short of the ultimate spectral resolution, where dephasing is eliminated and the transition linewidth is determined by the excited-state lifetime. In this work, we devise an approach to surface preparation and deposition that provides access to Fourier-limited electronic transitions in single molecules on the surface of an organic crystal. By performing spectroscopy and super-resolution microscopy at liquid helium temperature, we shed light on the spectral and spatial features of the adsorbed species. Our results pave the way for investigations in solid-state physics, where angstrom spatial resolution can be combined with high-resolution laser spectroscopy.

DOI: aeg5014

Source: https://www.science.org/doi/10.1126/science.aeg5014