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RIS citation export for MOPLH25: Characterization of Femtosecond-Laser-Induced Electron Emission from Diamond Nano-Tips

AU  - Pavlenko, V.N.
AU  - Andrews, H.L.
AU  - Black, D.S.
AU  - Fleming, R.L.
AU  - Gorelov, D.
AU  - Kim, D.
AU  - Leedle, K.J.
AU  - Simakov, E.I.
ED  - Yamazaki, Yoshishige
ED  - Raubenheimer, Tor
ED  - McCausey, Amy
ED  - Schaa, Volker RW
TI  - Characterization of Femtosecond-Laser-Induced Electron Emission from Diamond Nano-Tips
J2  - Proc. of NAPAC2019, Lansing, MI, USA, 01-06 September 2019
CY  - Lansing, MI, USA
T2  - North American Particle Accelerator Conference
T3  - 4
LA  - english
AB  - Nanocrystalline diamond is a promising material for electron emission applications, as it combines robustness of diamond and ability to easily conform to a pre-defined shape, even at nano-scale. However, its electron emission properties are yet to be fully understood. Recently, we started to investigate femtosecond-laser-induced strong-field photoemission from nanocrystalline diamond field emitters with very sharp (~10 nm apex) tips. Initial results show that the mechanism of electron emission at ~10¹⁰ W/cm² light intensities in the near UV to near IR range is more complex than in metals. We present our latest experimental results obtained at Stanford University, while LANL’s strong-field photoemission test stand is being commissioned. We show that strong-field photoemission occurs not only at the nano-tip’s apex, but also on flat diamond surfaces (e.g., pyramid sides), that is why extra care needs to be taken to differentiate between emission spots on the chip. Qualitatively, we discuss the models that explain the observed dependences of electron emission on the optical power, polarization of the light, etc.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 228
EP  - 231
KW  - laser
KW  - electron
KW  - photon
KW  - polarization
DA  - 2019/10
PY  - 2019
SN  - 2673-7000
SN  - 978-3-95450-223-3
DO  - doi:10.18429/JACoW-NAPAC2019-MOPLH25
UR  - http://jacow.org/napac2019/papers/moplh25.pdf
ER  -