TY - JOUR AU - Dragnea, B AU - Szarko, J AU - Preusser, J AU - Leone, S C2 - Review of Scientific Instruments DA - 2021-10-12 15:10:21 LA - en PB - Review of Scientific Instruments PY - 2021 TI - Direct Optical Measurement of the Dither Amplitude of a Near-Field Microscope Aperture on a Nanometer ER -