What is a linear medium?

1. Nov 23, 2011

ZedCar

What is a linear medium?

2. Nov 23, 2011

Staff: Mentor

What are your thoughts? What is the general definition of linearity? What kinds of media would you think would be non-linear for some types of energy propagation?

3. Nov 23, 2011

ZedCar

Definition-wise, does it mean that different waves at any particular point in the medium can be superposed? Normal optical glass ie BK7.

4. Nov 24, 2011

Staff: Mentor

The general definition of linearity is here:

http://en.wikipedia.org/wiki/Linearity

It basically tells you how the output of a system behaves with different inputs. In many systems, being able to assume linearity simplifies the analysis significantly.

What physical systems are you interested in? Optical systems, electronic systems, physical systems, etc?