Set ups to probe the response to external electric fields (FZJ-ICS3)

Light Scattering

Description

Homebuilt small angle (1-10/um) dynamic light scattering is equipped vertically to the sample stage, and with an in-situ electric field (AC field, +/- 200 V,  1Hz-300kHz). The in-situ electric cell consists of two ITO plates, separated by a Teflon spacer, which are connected to an AC-voltage generator. This cell can be also used in a microscope, as well as a vertical DLS set-up and the birefringence set up [1]. For the electric-birefringence, a null-birefringence set-up with an oblique incident laser beam enables probing the birefringence of samples with anisotropy of the refractive index that is perpendicular to the walls of the sample cell.  

Setup for DLS in electric fields

 For further details, please visit the "Instrumentation" page of ICS-3 at Forschungszentrum Jülich.

Ref. [1] K. Kang, Rev. of Sci. Instrum. 82, 053903 (2011).

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