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

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

doi:10.1109/IVNC.2014.6894737

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

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

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English (US)
Title of host publication	Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014
Editors	Hans-Heinrich Braun, Oliver Groening, Martin Paraliev, Thomas Feurer, Soichiro Tsujino, Jens Gobrecht
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	16-17
Number of pages	2
ISBN (Electronic)	9781479953080
DOIs	https://doi.org/10.1109/IVNC.2014.6894737
State	Published - 2014
Externally published	Yes
Event	2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014 - Engelberg, Switzerland Duration: Jul 6 2014 → Jul 10 2014

Publication series

Name	Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014

Other

Other	2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014
Country/Territory	Switzerland
City	Engelberg
Period	7/6/14 → 7/10/14

Keywords

electron emitter array
nanostructures
photocathode
plasmonics
ultrafast optics

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/IVNC.2014.6894737

Cite this

Hobbs, R. G., Yang, Y., Keathley, P. D., De Leo, E., Graves, W. S., Berggren, K. K., Fallahi, A., & Kärtner, F. X. (2014). Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays. In H.-H. Braun, O. Groening, M. Paraliev, T. Feurer, S. Tsujino, & J. Gobrecht (Eds.), Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014 (pp. 16-17). Article 6894737 (Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014). 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. et al.
Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014. ed. / Hans-Heinrich Braun; Oliver Groening; Martin Paraliev; Thomas Feurer; Soichiro Tsujino; Jens Gobrecht. Institute of Electrical and Electronics Engineers Inc., 2014. p. 16-17 6894737 (Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hobbs, RG, Yang, Y, Keathley, PD, De Leo, E, Graves, WS, Berggren, KK, Fallahi, A & Kärtner, FX 2014, Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays. in H-H Braun, O Groening, M Paraliev, T Feurer, S Tsujino & J Gobrecht (eds), Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014., 6894737, Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014, 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 WS, Berggren KK et al. Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays. In Braun HH, Groening O, Paraliev M, Feurer T, Tsujino S, Gobrecht J, editors, Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 16-17. 6894737. (Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014). doi: 10.1109/IVNC.2014.6894737

Hobbs, R. G. ; Yang, Y. ; Keathley, P. D. et al. / Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays. Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014. editor / Hans-Heinrich Braun ; Oliver Groening ; Martin Paraliev ; Thomas Feurer ; Soichiro Tsujino ; Jens Gobrecht. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 16-17 (Technical Digest - 2014 27th International Vacuum Nanoelectronics Conference, IVNC 2014).

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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.",

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AU - Hobbs, R. G.

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AU - Keathley, P. D.

AU - De Leo, Eva

AU - Graves, W. S.

AU - Berggren, K. K.

AU - Fallahi, A.

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AB - 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.

KW - electron emitter array

KW - nanostructures

KW - photocathode

KW - plasmonics

KW - ultrafast optics

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ER -

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

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ASJC Scopus subject areas

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