Last updated: Sat Jan 11 2003

Rotation of Linearly Polarized Light in Sugars
Red Laser Light in Corn Syrup
glucose (dextrose) and d-fructose

Red diode laser light passing through dextrose and d-fructose (Karo syrup).
The laser light is coming from the top.
It is linearly polarized and the polarization direction rotates as the beam moves down through the syrup.
Scattered light at right angle to the vertical beam is polarized horizontally.
When the beam polarization points towards the camera no horizontal component is available and no scattering can occur; a dark "node" is observed.