«Soy sauce optics»
Main point
Qualitative explanation
Why image gets smaller?
Mathematical model
The temperature distribution
Absorption coefficient δ:
Coefficient- changing reflective index with the temperature
Theory VS practice
Focal length
Compeering
Image width from laser current
Optical power VS thickness of soy sauce
Density VS Temperature
Conclusion
Qualitative graphs
Освещенность
Перевод из люксов в СИ
25.96M
Категория: ФизикаФизика

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.

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