lecture31 - Physical Optics Ch 37 and 38 Physical Optics...

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Physical Optics Ch 37 and 38 Physical Optics Ch 37 and 38
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Physical Optics Physical Optics Light is an electromagnetic wave. Wave properties: Diffraction – wave bends around corners, spreads out from narrow slits Interference – waves from two or more sources interfere
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Electromagnetic Waves Electromagnetic Waves Usually we keep track of the electric field E : amplitude all v B E , , E B E o ) sin( ) , ( t kx t x ϖ - = o E E v
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The Electromagnetic Spectrum The Electromagnetic Spectrum λ (m) f (Hz) 300 10 6 3 10 8 3 x 10 -3 10 11 3 x 10 -6 10 14 7 x 10 -7 5x10 14 4 x 10 -7 3 x 10 -9 10 17 3 x 10 -12 10 20 Radio TV Microwave Infrared Visible Ultraviolet X rays γ rays Infrared 780 nm Red Yellow 600 nm Green 550 nm Blue 450 nm Violet 380 nm Ultraviolet
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Infrared 780 nm Red Yellow600 nm Green 550 nm Blue 450 nm Violet 380 nm Ultraviolet Visible-Light Visible-Light Spectrum Spectrum λ
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The EM Spectrum
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Coherent sources are sources that have a constant phase difference between them (lasers). In phase sources
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This note was uploaded on 05/02/2010 for the course PHYSICS 1E03 taught by Professor Jopko during the Spring '08 term at McMaster University.

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lecture31 - Physical Optics Ch 37 and 38 Physical Optics...

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