OPTI 380A Lab 8 - Div of Wavefront - Presentation Slides-1

OPTI 380A Lab 8 - Div of Wavefront - Presentation Slides-1...

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1 OPTI 380A Intermediate Optics Lab 8: Division of Wavefront (Michelson Interferometer) Tom Milster Professor, College of Optical Sciences, University of Arizona [email protected] edu [email protected] Two Vector Plane Waves -Dynamics k • For ! 1 = ! 2 , " # = 0 and (Time Domain Dynamics) 1 k 2 # k $ k modulation is stationary. • For ! 1 = ! 2 , • Power flow is along constructive lines. • Total energy is conserved due to destructive lines. # $ % kk OPTI380A - Lab 8: Div of Wavefront (Michelson Interferometer) Red = negative field amplitude Blue = positive field amplitude z x y
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2 Two Vector Plane Waves - Irradiance (Time Averaged Irradiance) 2 (We will drop the y subscript for now and assume , =0.) & ’ & ’ 1 cos I CA # - . () *+ ! r k r 12 # / k = k k & &’ When 2 , a fringe occurs from interference. When 2 ( 1/ 2), a fringe occurs from interference. m bright constructive m dark destructive / - 0 / - 0 . k k r k k r ! ! k power flow OPTI380A - Lab 8: Div of Wavefront (Michelson Interferometer) r # # !
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OPTI 380A Lab 8 - Div of Wavefront - Presentation Slides-1...

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