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EM Wave & Polarization 林志民 Jim Jr-Min Lin

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Presentation on theme: "EM Wave & Polarization 林志民 Jim Jr-Min Lin"— Presentation transcript:

1 EM Wave & Polarization 林志民 Jim Jr-Min Lin

2 Vector q

3 Electric Field is a Vector.
q

4 Polarizer 偏振片 Conductive direction
Only a certain direction of the E vector can transmit the polarizer, not the perpendicular one. Conductive direction

5 The transmittance of an ideal polarizer is:
If the transmitted direction is x, EX component can go through, not EY. The transmittance of an ideal polarizer is: q

6 Wave

7

8 q

9 Number of Wavelength (# of wave)

10 Birefringence 双折射

11 7 6 7 4 6 7.5 5 2 4 3 1 2 1

12 Half-wave plate

13 Before entering the medium
q Before entering the medium After the medium q


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