Diffraction
 
 

When you shine light through a diffration grating  .  .  .
 
 
 

.  .  .  if its white light, you get a Rainbow  .  .  .

 
 
 
    
.  .  .  if its a green or red laser  .  .  .
.  .  .  you get a

red
or
green

diffraction pattern  .  .  .

 
 
 

.  .  .  and, if its a multispectral laser  .  .  .

 


... like the Argon laser in Chamberin Hall...
Argon Laser
.  .  .  you get the visible colors that make up the beam!!		 Argon Laser

  
 
The Physics: The diffraction grating works on the principle on wave interference. The light waves interact constructively and we see a bright spot, or destrcutively and we see a dark spot.
 
 

Back_to_Demo_Page

Page Updated 11/14/06