气候变化领域集成服务门户(CCPortal): Subparticle ultrafast spectrum imaging in 4D electron microscopy

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DOI	10.1126/science.1213504
	Subparticle ultrafast spectrum imaging in 4D electron microscopy
	Yurtsever A.; Van Der Veen R.M.; Zewail A.H.
发表日期	2012
ISSN	0036-8075
起始页码	59
结束页码	64
卷号	335 期号:6064
英文摘要	Single-particle imaging of structures has become a powerful methodology in nanoscience and molecular and cell biology. We report the development of subparticle imaging with space, time, and energy resolutions of nanometers, femtoseconds, and millielectron volts, respectively. By using scanning electron probes across optically excited nanoparticles and interfaces, we simultaneously constructed energy-time and space-time maps. Spectrum images were then obtained for the nanoscale dielectric fields, with the energy resolution set by the photon rather than the electron, as demonstrated here with two examples (silver nanoparticles and the metallic copper-vacuum interface). This development thus combines the high spatial resolution of electron microscopy with the high energy resolution of optical techniques and ultrafast temporal response, opening the door to various applications in elemental analysis as well as mapping of interfaces and plasmonics.
英文关键词	copper; silver nanoparticle; cell organelle; copper; electron; energy efficiency; four-dimensional modeling; molecular analysis; particulate matter; scanning electron microscopy; spatial resolution; spectral analysis; article; electron; electron microscopy; four dimensional electron microscopy; imaging; photon; priority journal; spectrum imaging
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246122
作者单位	Physical Biology Center for Ultrafast Science and Technology, Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, CA 91125, United States
推荐引用方式 GB/T 7714	Yurtsever A.,Van Der Veen R.M.,Zewail A.H.. Subparticle ultrafast spectrum imaging in 4D electron microscopy[J],2012,335(6064).
APA	Yurtsever A.,Van Der Veen R.M.,&Zewail A.H..(2012).Subparticle ultrafast spectrum imaging in 4D electron microscopy.Science,335(6064).
MLA	Yurtsever A.,et al."Subparticle ultrafast spectrum imaging in 4D electron microscopy".Science 335.6064(2012).