Langmuir-Blodgett film deposition system with Brewster angle microscope

The surface pressure—area isotherms and Brewster angle microscope (BAM) images are measured simultaneously with a KSV OPTREL BAM300 mounted on a KSV minitrough Langmuir film balance (KSV Instruments) equipped with a double barrier system. The instrument is equipped with a 10 mW HeNe laser (633 nm) linearly polarized in the plane of incidence by a Glann-Thomson polarizer. The reflection from the interface passes through a second Glann-Thomson polarizer and is picked by a CCD camera. The spatial resolution of the system is approximately 2 mm.