cdplayer - = 780 nm n = 1.55 Pit height = 125 nm /n/4 =...

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The CD Player uses refraction uses diffraction uses interference uses polarization
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Digital Encoding into Bumps
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Refraction and Diffraction Laser beam pit land
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Readout: Interference Or Scattering?
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Unformatted text preview: λ = 780 nm n = 1.55 Pit height = 125 nm ( λ /n)/4 = 125 nm The pit acts as a sub-wavelength scatterer Tracking - uses diffraction Tracking - uses polarization...
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This note was uploaded on 12/29/2011 for the course PHYSICS 375 taught by Professor Eno during the Spring '11 term at Maryland.

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cdplayer - = 780 nm n = 1.55 Pit height = 125 nm /n/4 =...

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