Quantum tunnelling of electrons brings ultrafast optical microscopy to the atomic scale

• 成果类型: News Item
• 署名作者: Siday, Thomas; Huber, Rupert
• 署名单位: University of Regensburg
• 刊物名称: Nature
• ISSN/ISSBN: 0028-4724
• DOI: 10.1038/d41586-024-01294-z
• 发表日期: 2024-05-30
• 关键词: tyrosine kinase; crystal-structure; protein-kinases; signaling networks; plasma-membrane; receptor; substrate; activation; domain; RECOGNITION

摘要

The oscillating electromagnetic fields that carry light can cause electrons to tunnel back and forth through a potential energy barrier. Remarkably, this alternating current can coherently emit measurable light waves - an unexpected process that can be exploited to build an optical microscope that undercuts existing spatial and temporal limitations.