A glass lens ( ) is to be coated with a single antireflection layer made of material…

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics

Problem

A glass lens (

n = 1.50

) is to be coated with a single antireflection layer made of material with index

n = 1.38

. For normally incident green light of wavelength

550\,\text{nm}

in air, determine the minimum non-zero physical thickness the coating should have to minimize reflection.