5 - Thin film interference and MM Interferometers Flashcards
1
Q
What are anti-reflection coatings?
A
Pretty self-explanatory
2
Q
What is Optical Path Length (OPL)?
A
OPL = 2 * n * t
The ‘physical’ distance t that appears to be elongated due to refraction.
3
Q
What is Optical Path Difference (OPD)?
A
A difference in OPL between two paths is called the optical path difference (OPD) and corresponds to a phase shift between two paths.
