Polarimetry Kit

Topics covered:
- Finding the rotation angle θ
- Checking Biot's law
- Carrying out a calibration α=f(C) 

Principles and objectives:
Polarimetry, or the study of optically active substances, allows for the reconciliation of chemical properties and optical properties. The instrument generally used to measure a deviation in polarization is a Laurent polarimeter.
In a half-shadow polarimeter, the goal is to find the half-shadow angle θp which indicates the rotation of polarization due to the presence of the active solution.
The rotation angle θ of the tested substance is then:
θ = θp – θ0 , where θ0 is the reference half-shadow angle and θp is that of the tested solution.

Here, we provide you with all the components necessary to set up a half-shadow polarimeter on an optical bench (clamps and supports not included).

Composition:
 ▪ 1 laser torch (ref.204080)
 ▪ 2 polarizers in graduated mount (ref.202374)
 ▪ 1 penumbra analysis in graduated mount (ref.202387)
 ▪ 2 polarimetry cells Øutile 40 mm - length 100 and 200 mm (ref.203379+203389)
 ▪ 1 white and gridded metal screen 20x20 cm (ref.202368)
 ▪ 1 set of experiment instructions