Rami Arieli: "The Laser Adventure" Chapter 1 page 2

Things you need to know:
Before studying about lasers, you must be familiar with basic terms used to describe electromagnetic waves:

• Wavelength (l)
• Frequency (n)
• Period (T)
• Velocity of light ( c )
• Index of refraction (n)

We will briefly review these terms (in chapters 1&2), but it is much better if the reader will be familier with:

• Some terms from geometric optics such as: refraction, reflection, thin lenses etc.
• Some terms from "Modern Physics" such as photons, Models of atoms, etc.

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