%0 Journal Article %A Moreno, Camilo %A Alda, Javier %A Kinzel, Edward %A Boreman, Glenn %T Phase imaging and detection in pseudo-heterodyne scattering scanning near-field optical microscopy measurements %D 2017 %@ 1559-128X %U https://hdl.handle.net/20.500.14352/17601 %X When considering the pseudo-heterodyne mode for detection of the modulus and phase of the near field from scattering scanning near-field optical microscopy (s-SNOM) measurements, processing only the modulus of the signal may produce an undesired constraint in the accessible values of the phase of the near field. A two-dimensional analysis of the signal provided by the data acquisition system makes it possible to obtain phase maps over the whole [0, 2 %~