The Laser
The Laser
• Light from a laser has special properties
• Laser light is:
• Very pure in colour
• Intense
• Concentrated in a narrow beam
• Able to travel great distances without
spreading out.
WHY?
The Laser
• Laser light is made of electromagnetic
waves of exactly the same energy,
travelling exactly the same direction!
The Laser
• A laser beam will not separate into
different colours when it passes
through a prism