nanofilm_refspec_va

The variable angle RefSpec2 VA offers precision motorized angle-of-incidence adjustments and motorized polarizer and analyzer (p&s polarization flip).

By that it allows to study orientation effects and optical dichroism in absorbing thin films. The instrument is designed to work for Langmuir and LB films, using precise calibration methods and a cooled back-thinned CCD detector to achieve the required sensitivity. It is equipped with a Xe-light source and may be operated in the range from 240-980nm. Interfaces to NIMA or KSV troughs allow fully automated measurements at preset surface pressures or molecular areas.

Typical samples

Dye monolayers
Proteins
Tensides
Fatty acids

LB-films on solid structures
Liposomes interacting with lipid films
Proteins interacting with charged/uncharged lipids

"arbitrary and automatic setting of the input and output polarizer enable spectral measurements of dichroism, optical activity or orientation of chromophors".
(Data courtesy of the group of L. Camacho Delgado, Univ. Córdoba, Spain)

Product details

Product flyer refspec_va

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Peter Thiesen