n1 l1 = l0/n1
n2 l2 = l0/n2
n3 l3 = l0/n3
n4 l1 = l0/n4
n5 l1 = l0/n5
Light reflects from
every boundary
R=(n1-n2)2/(n1+n2)2
Normal incidence
Short pulses use time to distinguish depth (c.f. ultrasound)
| Previous slide | Next slide | Back to first slide | View graphic version |