SI-BA04 Brewster angle microscopy

Brewster (Brewster) angle microscope is mainly used to observe the organic monolayers points on the gas-liquid interface. It has excellent image quality and resolution, is the ideal instrument for online control and observation of morphological film parameters: (such as uniformity, stability, domain structure). Brewster angle microscopy applications include monolayer LB films of quality control, assembled monolayers technology, new synthetic materials characterization and contamination monitoring.

Principle: polarized light reflected on the surface of the medium, refraction, degree of polarization to change. When the incident angle α is Brewster’s angle, the polarization will be no reflection. If monolayers at the gas-liquid interface is formed, since the Brewster angle change, the re-emergence of reflection, gathering reflected light microscope, you can observe the other parameters of the film was like.

Main purpose: To observe the phenomenon ordered monolayer, monolayer structural transformation to a multi-molecular layer, the surface adsorption kinetics, single-phase field gathering, LB film uniformity quality, phase separation