Lectures_Lect24

Lectures_Lect24 - Physics 212 Lecture 24, Slide Physics 212...

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Unformatted text preview: Physics 212 Lecture 24, Slide Physics 212 Lecture 24, Slide 1 Physics 212 Physics 212 Lecture 24: Polarization Lecture 24: Polarization Physics 212 Lecture 24, Slide Physics 212 Lecture 24, Slide 2 So far we have considered plane waves that look like this: So far we have considered plane waves that look like this: From now on just draw E and remember that B is still there: From now on just draw E and remember that B is still there: Physics 212 Lecture 24, Slide Physics 212 Lecture 24, Slide 3 Linear Polarization Linear Polarization Physics 212 Lecture 24, Slide Physics 212 Lecture 24, Slide 4 The molecular structure of a polarizer causes the component of The molecular structure of a polarizer causes the component of the the E E field perpendicular to the Transmission Axis to be absorbed. field perpendicular to the Transmission Axis to be absorbed. Polarizers Polarizers Physics 212 Lecture 24, Slide Physics 212 Lecture 24, Slide 5 The molecular structure of a polarizer causes The molecular structure of a polarizer causes the component of the component of the the E E field perpendicular to the Transmission field perpendicular to the Transmission Axis to be absorbed. Axis to be absorbed. Quick ACT Quick ACT Suppose we have a beam traveling in the + z-direction. Suppose we have a beam traveling in the + z-direction. At t = 0 and z = 0, the electric field is aligned along the positive x-axis and At t = 0 and z = 0, the electric field is aligned along the positive x-axis and has a magnitude equal to E has a magnitude equal to E o z y E o What is the component of What is the component of E o along a direction in the x-y plane that makes along a direction in the x-y plane that makes...
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Lectures_Lect24 - Physics 212 Lecture 24, Slide Physics 212...

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