Soy sauce optics

1. «Soy sauce optics»

Problem №9
«Soy sauce optics»
Using a laser beam passing
through a thin layer (about 200
µm) of soy sauce the thermal
lens effect can be observed.
Investigate this phenomenon.
Team Russia
Reporter: Katerina Zamaraeva

2.

1. Experimental setup
Distance between glasses - 2
from 0.13 to 1mm
Clamping the
glasses
2

3.

2. Experimental setup
Laser
Average power1 Watt
Current source
Soy lens
Vertically
position soy lens
Picture
3

4.

1. First observations
Without lens
In the beginning
with lens
After some time
4

5.

2. First observations
The rings formed
5

6. Main point

• Absorption
6

7. Qualitative explanation

7

8.