Femtosecond Laser-Induced Electron Emission from Nanodiamond-Coated Tungsten Needle Tips

We present femtosecond laser-induced electron emission from nanodiamond-coated tungsten tips. Based on the shortness of the femtosecond laser pulses, electrons can be photoexcited for wavelengths from the infrared (1932 nm) to the ultraviolet (235 nm) because multiphoton excitation becomes efficient...

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Veröffentlicht in:	Physical review letters 2019-10, Vol.123 (14), p.146802-146802, Article 146802
Hauptverfasser:	Tafel, A, Meier, S, Ristein, J, Hommelhoff, P
Format:	Artikel
Sprache:	eng
Schlagworte:	Accelerators Channels Conduction bands Diamonds Electron affinity Electron emission Electron sources Emittance Excitation Femtosecond pulses Lasers Nanostructure Negative electron affinity Photoelectric emission Photonics Photons Tips Tungsten Work functions
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