单粒子无耗散衍射成像与铜纳米立方体的放大自发发射
光学
2025-12-16 v2
摘要
我们演示了使用硬 X 射线自由电子激光器中 K 荧光强度相关性，对单个铜纳米立方体进行元素特异的无耗散衍射成像（IDI）。将单粒子衍射分类与 IDI 结合，我们以 20 nm 的分辨率恢复了 88 nm 立方体的结构因子，将 IDI 扩展到具有大分辨率提升的不可恢复单粒子 regime。IDI 可见性在 J/cm 以上剂量下急剧下降，这与放大自发发射的假设相符。我们的结果揭示了面向未来单粒子 X 射线成像的高剂量纳米成像的基本限制。
引用
@article{arxiv.2512.06110,
title = {Single-particle incoherent diffractive imaging and amplified spontaneous emission in copper nanocubes},
author = {Tamme Wollweber and Sarodi Jonak Dutta and Zhou Shen and Johan Bielecki and Carl Caleman and Sebastian Cardoch and Armando D. Estillore and Lukas V. Haas and Sebastian Karl and Faisal H. M. Koua and Abhishek Mall and Parichita Mazumder and Diogo Melo and Mauro Prasciolu and Omkar V. Rambadey and Amit Kumar Samanta and Abhisakh Sarma and Tokushi Sato and Egor Sobolev and Fabian Trost and Saša Bajt and Richard Bean and Jochen Küpper and Nicusor Timneanu and Ralf Röhlsberger and Joachim von Zanthier and Florian Schulz and Henry N. Chapman and Kartik Ayyer},
journal= {arXiv preprint arXiv:2512.06110},
year = {2025}
}
备注
8 pages, 8 figures