Smith-Purcell Radiation from Low-Energy Electrons
Name
1710.05358.pdf
Description
Accepted version
Size
972.54 KB
Format
Adobe PDF
Checksum (MD5)
fe920bd88f8fc38286778d29c3d961be
Author(s)
Massuda, Aviram
Roques-Carmes, Charles
Yang, Yujia
Kooi, Steven E.
Yang, Yi
Murdia, Chitraang
Berggren, Karl K.
Kaminer, Ido
Soljacic, Marin
Date Issued
August 2018
Journal
ACS Photonics
Publisher
American Chemical Society (ACS)
Citation
Massuda, Aviram, et al., "Smith-Purcell Radiation from Low-Energy Electrons." ACS Photonics 5, 9 (August 2018): p. 3513-18 doi 10.1021/ACSPHOTONICS.8B00743 ©2018 Author(s)
Version
Author's final manuscript
Abstract
Recent advances in the fabrication of nanostructures and nanoscale features in metasurfaces offer new prospects for generating visible light emission from low-energy electrons. Here we present the experimental observation of visible light emission from low-energy free electrons interacting with nanoscale periodic surfaces through the Smith-Purcell (SP) effect. We demonstrate SP light emission from nanoscale gratings with periodicity as small as 50 nm, enabling the observation of tunable visible radiation from low-energy electrons (1.5 to 6 keV), an order of magnitude lower in energy than previously reported. We study the emission wavelength and intensity dependence on the grating pitch and electron energy, showing agreement between experiment and theory. Our results open the way to the production of SP-based nanophotonics integrated devices. Built inside electron microscopes, SP sources could enable the development of novel electron-optical correlated spectroscopic techniques and facilitate the observation of new quantum effects in light sources. ©2018
MIT Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1021/ACSPHOTONICS.8B00743
