Light well: A tunable free-electron light source on a chip

G. Adamo; K. F. MacDonald; Y. H. Fu; C. M. Wang; D. P. Tsai; F. J. García De Abajo; N. I. Zheludev

doi:10.1103/PhysRevLett.103.113901

Light well: A tunable free-electron light source on a chip

G. Adamo, K. F. MacDonald, Y. H. Fu, C. M. Wang, D. P. Tsai, F. J. García De Abajo, N. I. Zheludev

Department of Optics and Photonics

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168 Scopus citations

Abstract

The passage of a free-electron beam through a nanohole in a periodically layered metal-dielectric structure creates a new type of tunable, nanoscale radiation source-a "light well". In the reported demonstration, tunable light is generated at an intensity of ∼200W/cm2 as electrons with energies in the 20-40keV range are injected into gold-silica well structures with a lateral size of just a few hundred nanometers.

Original language	English
Article number	113901
Journal	Physical Review Letters
Volume	103
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.103.113901
State	Published - 9 Sep 2009

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10.1103/PhysRevLett.103.113901

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AU - García De Abajo, F. J.

AU - Zheludev, N. I.

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Light well: A tunable free-electron light source on a chip

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