Author/Authors :
Cantu-Valle، نويسنده , , Jesus and Ruiz-Zepeda، نويسنده , , Francisco and Mendoza-Santoyo، نويسنده , , Fernando and Jose-Yacaman، نويسنده , , Miguel and Ponce-de-Leَn، نويسنده , , Arturo، نويسنده ,
Abstract :
In this work the calibration of a medium resolution off-axis electron holography using a dual-lens imaging system in a JEOL ARM 200F is shown. The objective dual-lens configuration allows adjusting the field of view from 35 nm to 2.5 μm. Subsequently, the parameters used in phase shift reconstruction were calibrated considering biprism voltage versus fringe spacing (σ) and versus fringe width (W). The reliability of the transmission electron microscope performance using these parameters was achieved using gold nanoparticles of known size and adjusting the excitation voltage of the lenses.
Keywords :
Electron holography , Electron optics , Dual-lens imaging , Phase reconstruction , Metallic nanoparticles
