# Homework Help: Polarization, minimum thickness of a quarter wave plate

1. Sep 25, 2011

### ProPatto16

1. The problem statement, all variables and given/known data

show that minimum thickness of quarter wave plate is d=$\lambda$0/4(n1-n2

2. Relevant equations

$\lambda$1=$\lambda$0/n1
$\lambda$2=$\lambda$0/n2

3. The attempt at a solution

for quater wave plates wavelengths must differ by 1/4
i can see its simple but i just cant see what i do

2. Sep 26, 2011

no ideas?

3. Dec 6, 2011

### Charles_Chen

We do have software to calculate the thickness for wave plate, different wavelength design.

charles.chen@photonik.com.sg