High-density Au nanorod optical field-emitter arrays

被引：18

作者：

Hobbs, R. G. ^{[1
]}

Yang, Y. ^{[1
]}

Keathley, P. D. ^{[1
]}

Swanwick, M. E. ^{[2
]}

Velasquez-Garcia, L. F. ^{[2
]}

Kaertner, F. X. ^{[1
,3
]}

Graves, W. S. ^{[4
]}

Berggren, K. K. ^{[1
]}

机构：

[1] MIT, Elect Res Lab, Cambridge, MA 02139 USA

[2] MIT, Microsyst Technol Labs, Cambridge, MA 02139 USA

[3] DESY, Ctr Free Electron Laser Sci, Hamburg, Germany

[4] MIT, Nucl Reactor Lab, Cambridge, MA 02139 USA

来源：

NANOTECHNOLOGY | 2014年 / 25卷 / 46期

关键词：

ultrafast; photocathode; nanofabrication; field-emitter array; electron beam lithography; PHOTOEMISSION; ELECTRONS;

D O I：

10.1088/0957-4484/25/46/465304

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We demonstrate the design, fabrication, characterization, and operation of high-density arrays of Au nanorod electron emitters, fabricated by high-resolution electron beam lithography, and excited by ultrafast femtosecond near-infrared radiation. Electron emission characteristic of multiphoton absorption has been observed at low laser fluence, as indicated by the power-law scaling of emission current with applied optical power. The onset of space-charge-limited current and strong optical field emission has been investigated so as to determine the mechanism of electron emission at high incident laser fluence. Laser-induced structural damage has been observed at applied optical fields above 5 GV m(-1), and energy spectra of emitted electrons have been measured using an electron time-of-flight spectrometer.

引用

页数：7

共 22 条

[1] 2-PHOTON PHOTOEMISSION FROM METALS INDUCED BY PICOSECOND LASER-PULSES
BECHTEL, JH
SMITH, WL
BLOEMBERGEN, N
[J]. PHYSICAL REVIEW B, 1977, 15 (10): : 4557 - 4563
[2] Tip-Enhanced Strong-Field Photoemission
Bormann, R.
Gulde, M.
Weismann, A.
Yalunin, S. V.
Ropers, C.
[J]. PHYSICAL REVIEW LETTERS, 2010, 105 (14)
[3] Attosecond science
Corkum, P. B.
Krausz, Ferenc
[J]. NATURE PHYSICS, 2007, 3 (06) : 381 - 387
[4] Observation of few-cycle, strong-field phenomena in surface plasmon fields
Dombi, P.
Irvine, S. E.
Racz, P.
Lenner, M.
Kroo, N.
Farkas, G.
Mitrofanov, A.
Baltuska, A.
Fuji, T.
Krausz, F.
Elezzabi, A. Y.
[J]. OPTICS EXPRESS, 2010, 18 (23): : 24206 - 24212
[5] Ultrafast Strong-Field Photoemission from Plasmonic Nanoparticles
Dombi, Peter
Hoerl, Anton
Racz, Peter
Marton, Istvan
Truegler, Andreas
Krenn, Joachim R.
Hohenester, Ulrich
[J]. NANO LETTERS, 2013, 13 (02) : 674 - 678
[6] Cathode R&D for future light sources
Dowell, D. H.
Bazarov, I.
Dunham, B.
Harkay, K.
Hernandez-Garcia, C.
Legg, R.
Padmore, H.
Rao, T.
Smedley, J.
Wan, W.
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2010, 622 (03) : 685 - 697
[7] Intense Superradiant X Rays from a Compact Source Using a Nanocathode Array and Emittance Exchange
Graves, W. S.
Kaertner, F. X.
Moncton, D. E.
Piot, P.
[J]. PHYSICAL REVIEW LETTERS, 2012, 108 (26)
[8] Field emission tip as a nanometer source of free electron femtosecond pulses
Hommelhoff, P
Sortais, Y
Aghajani-Talesh, A
Kasevich, MA
[J]. PHYSICAL REVIEW LETTERS, 2006, 96 (07) : 1 - 4
[9] Field emitter arrays for plasma and microwave source applications
Jensen, KL
[J]. PHYSICS OF PLASMAS, 1999, 6 (05) : 2241 - 2253
[10] Strong-field photoemission from silicon field emitter arrays
Keathley, Phillip D.
Sell, Alexander
Putnam, William P.
Guerrera, Stephen
Velasquez-Garcia, Luis
Kaertner, Franz X.
[J]. ANNALEN DER PHYSIK, 2013, 525 (1-2) : 144 - 150

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