Reflection and Interference from Thin Films
PHY 2049: Chapter 36 20 Quiz ÎConsider an oil film (thickness d, n = 1.5) on top of water (n = 1.3). Light of λ= 600 nm is normally incident. Which value of d corresponds to destructive interference? (1) 300 nm (2) 150 nm (3) 200 nm d n 1 n 2 n 0 = 1 Only 1 reflection has a phase shift, so d = m * 200 nm
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