Lecture 2 Gaussian Beams and coherence Spr2010

Lecture 2 Gaussian Beams and coherence Spr2010 - Spring...

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Unformatted text preview: Spring 2010 Mat 288S Optoelectronic Measurements 1 Gaussian Beams Gaussian Beam Properties and Transformation Coherence Demo Spring 2010 Mat 288S Optoelectronic Measurements 2 Gaussian Waves vs. Plane Waves Gaussian Wave Solution + = ) ( 2 tan exp ) ( exp ) ( ) , ( 2 1 2 2 z R kr z z kz i z r z E z r E Plane Wave Solution [ ] ikz E z E = exp ) ( ) ( 2 2 = + E r k E Wave Equation amplitude phase Spring 2010 Mat 288S Optoelectronic Measurements 3 Gaussian Beam Distribution = ) ( 2 exp ) ( 2 2 z r I r I = 2 2 2 exp 1 ) ( ) ( r P r P Power enclosed within circle of radius r: Spring 2010 Mat 288S Optoelectronic Measurements 4 Beam Waist and Divergence + = 2 2 1 ) ( z z z R 2 / 1 2 2...
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This note was uploaded on 02/02/2011 for the course ECE 227A taught by Professor Coldren during the Spring '08 term at UCSB.

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Lecture 2 Gaussian Beams and coherence Spr2010 - Spring...

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