Title :
Two-color assisted field enhancement for vacuum tunneling of a metallic-tip/substrate systems
Author :
Xiang Meng;Hao Yang;Jerry I. Dadap;Richard M. Osgood;N. Camillone
Author_Institution :
Department of Electrical Engineering, Columbia University, New York, NY
fDate :
6/1/2015 12:00:00 AM
Abstract :
We investigate the optical field enhancement for two-color ultrafast laser pulses incident on a nanoscopic tungsten probe tip suspended over a silver substrate. Experimental measurements of vacuum tip tunneling are paired with computations using full 3D finite-difference time-domain (FDTD) calculations. The measured spatial response of the tip current matches the calculated dependence.
Keywords :
"Ultrafast optics","Optical pulses","Optical polarization","Substrates","Nonlinear optics","Optical imaging","Optical scattering"
Conference_Titel :
Photonics North, 2015
DOI :
10.1109/PN.2015.7292473
