Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays

R. G. Hobbs, Y. Yang, P. D. Keathley, Eva De Leo, William Graves, K. K. Berggren, A. Fallahi, F. X. Kärtner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work we demonstrate the design, fabrication and characterization of ultrafast, surface-plasmon enhanced Au nanorod photofield emitter arrays. We present a quantitative analysis of charge yield from plasmonic Au nanorod arrays fabricated by high-resolution electron beam lithography and triggered by 35 fs pulses of 800 nm light. We have accurately modeled both the optical field enhancement of Au nanorods in high-density arrays, and electron emission from those nanorods. We have considered the effects of surface plasmon damping induced by metallic interface layers at the substrate/nanorod interface on electron emission. We have identified the peak optical field at which the electron emission mechanism transitions from a 3-photon absorption mechanism to strong-field tunneling emission. Moreover, we have investigated the effects of nanorod array density on nanorod charge yield, including measurement of space-charge effects.

Original languageEnglish (US)
Title of host publicationTechnical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages16-17
Number of pages2
ISBN (Print)9781479953080
DOIs
StatePublished - 2014
Externally publishedYes
Event2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014 - Engelberg, Switzerland
Duration: Jul 6 2014Jul 10 2014

Other

Other2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014
CountrySwitzerland
CityEngelberg
Period7/6/147/10/14

Fingerprint

Nanorods
Electrons
Electron emission
Electron beam lithography
Electron transitions
Electric space charge
Photons
Damping
Fabrication
Substrates
Chemical analysis

Keywords

  • electron emitter array
  • nanostructures
  • photocathode
  • plasmonics
  • ultrafast optics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Hobbs, R. G., Yang, Y., Keathley, P. D., De Leo, E., Graves, W., Berggren, K. K., ... Kärtner, F. X. (2014). Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays. In Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014 (pp. 16-17). [6894737] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IVNC.2014.6894737

Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays. / Hobbs, R. G.; Yang, Y.; Keathley, P. D.; De Leo, Eva; Graves, William; Berggren, K. K.; Fallahi, A.; Kärtner, F. X.

Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 16-17 6894737.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hobbs, RG, Yang, Y, Keathley, PD, De Leo, E, Graves, W, Berggren, KK, Fallahi, A & Kärtner, FX 2014, Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays. in Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014., 6894737, Institute of Electrical and Electronics Engineers Inc., pp. 16-17, 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014, Engelberg, Switzerland, 7/6/14. https://doi.org/10.1109/IVNC.2014.6894737
Hobbs RG, Yang Y, Keathley PD, De Leo E, Graves W, Berggren KK et al. Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays. In Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 16-17. 6894737 https://doi.org/10.1109/IVNC.2014.6894737
Hobbs, R. G. ; Yang, Y. ; Keathley, P. D. ; De Leo, Eva ; Graves, William ; Berggren, K. K. ; Fallahi, A. ; Kärtner, F. X. / Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays. Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 16-17
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