Lecture-24-04-15-10

Lecture-24-04-15-10 - 1 Lecture-24 Physical Optics...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 Lecture-24 Physical Optics Wave-like effects Demonstration Interference Two Huygens wavelets overlap and add to create spatial modulation of intensity. Interference Question: How does it work? Note: Light detectors including eyes respond to intensity. 2 sin 2 d difference path difference path d sin Interference Condition Phase difference between two rays at screen: Constructive if Destructive if where m=0, 1, 2, Interference in Thin Films Note n air < n oil < n water . Beam 1 suffers phase shift by at air-oil, and beam 2 has phase shift by at oil- water. Then, beam 1 and beam 2 interfere constructively if 2 n oil d = m . Air Wedge: m d sin ) 2 / 1 ( sin m d 1 2 d 3 Michelson Interferometer Constructive fringes if displacement d of M 1 satisfies 2 d = m ....
View Full Document

Page1 / 8

Lecture-24-04-15-10 - 1 Lecture-24 Physical Optics...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online