物质波增强光谱学的新途径。

New avenues for matter-wave-enhanced spectroscopy.

作者信息

Rodewald Jonas, Haslinger Philipp, Dörre Nadine, Stickler Benjamin A, Shayeghi Armin, Hornberger Klaus, Arndt Markus

机构信息

Faculty of Physics, VCQ, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria.

University of California, Berkeley, Leconte/Birge Hall, Berkeley, CA 94720 USA.

出版信息

Appl Phys B. 2017;123(1):3. doi: 10.1007/s00340-016-6573-y. Epub 2016 Dec 9.

DOI:10.1007/s00340-016-6573-y

PMID:28018052

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5148790/

Abstract

We present matter-wave interferometry as a tool to advance spectroscopy for a wide class of nanoparticles, clusters and molecules. The high sensitivity of de Broglie interference fringes to external perturbations enables measurements in the limit of an individual particle absorbing only a single photon on average, or even no photon at all. The method allows one to extract structural and electronic information from the loss of the interference contrast. It is minimally invasive and works even for dilute ensembles.

摘要

我们提出物质波干涉测量法，作为一种推进对多种纳米颗粒、团簇和分子进行光谱分析的工具。德布罗意干涉条纹对外部扰动具有高灵敏度，这使得在单个粒子平均仅吸收一个光子甚至根本不吸收光子的极限情况下也能进行测量。该方法能让人从干涉对比度的损失中提取结构和电子信息。它具有微创性，甚至对稀释的系综也有效。