Contrast Transfer Function of a Transmission Electron Microscope—Key Term for Phase Contrasts in HRTEM
摘要
As explained in Chap. 16 , a lens is a kindContrast transfer function of phase shifter dependingTransmission electron microscope (TEM) on incidentPhase contrast angle of optical ray to the lens. In this section, we derive the formula of the phase shift. Let us start with the function of a convex lens.