Laser induced field emission from metallic field emitters: Near field enhancement of optical electric field at metallic nano-surfaces

Author

Mustonen, Anna ; Beaud, Paul ; Kirk, Eugenie ; Feurer, Thomas ; Tsujino, Soichiro

Author_Institution

Lab. for Micro- & Nanotechnol., Paul Scherrer Inst., Villigen, Switzerland

fYear

2011

fDate

18-22 July 2011

Firstpage

97

Lastpage

98

Abstract

Efficient laser-induced field emission excited by femtosecond near infrared laser pulses from metallic field emitter array cathodes has been reported recently. To elucidate the physical processes, we studied the electromagnetic field distribution at the nanometer-scale metallic field emitter apexes numerically and compared with experimental laser-polarization dependence. Good agreement between theory and experiment indicates the essential role of the nano-optical field enhancement at the metallic nano-tips.

Keywords

cathodes; electro-optical effects; field emission; field emitter arrays; laser materials processing; electromagnetic field distribution; femtosecond near infrared laser pulses; laser induced field emission; laser-polarization dependence; metallic field emitter array cathodes; metallic field emitters; metallic nanosurfaces; metallic nanotips; nanometer-scale metallic field emitter apexes; nanooptical field enhancement; near field enhancement; optical electric field; Electric fields; Free electron lasers; Optical polarization; Optical pumping; Stimulated emission; Surface emitting lasers; electromagnetic simulation; field emitter array; laser induced electron emission; optical field enhancement;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Nanoelectronics Conference (IVNC), 2011 24th International

Conference_Location

Wuppertal

ISSN

pending

Print_ISBN

978-1-4577-1243-2

Electronic_ISBN

pending

Type

conf

Filename

6004580