polarization of light. in electrodynamics, polarization is the property of electromagnetic wave,...
TRANSCRIPT
![Page 1: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/1.jpg)
Polarization of light
![Page 2: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/2.jpg)
In electrodynamics, polarization is the property of electromagnetic wave, such as light , that describes the direction of the transverse Electric field
E
B
k
![Page 3: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/3.jpg)
0ˆ( , ) cos( )x xE z t iE kz t
0ˆ( , ) cos( )y yE z t jE kz t
( , ) ( , ) ( , )x yE z t E z t E z t
![Page 4: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/4.jpg)
For
0 0
( 0, 2, 4, 6.....)
ˆ ˆ( ) cos( )x y
n n
E iE jE kz t
0 0
( 1, 3, 5.....)
ˆ ˆ( ) cos( )x y
n n
E iE jE kz t
Linearly polarized light
![Page 5: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/5.jpg)
xx
y
y
y
y
xx
![Page 6: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/6.jpg)
0
2 ( 0, 1, 2, 3.....)2
ˆ ˆ[( cos( ) sin( )]
n n
E E i kz t j kz t
Right circularly polarized light
Circularly polarized light
)tkz(Ei)t,z(Ex cos0
0ˆ( , ) cos( )yE z t jE kz t
![Page 7: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/7.jpg)
Time
/4
t=0
t=/4
t=/2
t=3/4
Referen
ce ax
is
x
y
E0
xE
yE
t
0kz
E
For kz=/4
)tkz(Ei)t,z(Ex cos00ˆ( , ) sin( )yE z t jE kz t
![Page 8: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/8.jpg)
![Page 9: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/9.jpg)
Left circularly polarized light
0
2 ( 0, 1, 2, 3.....)2
ˆ ˆ( cos( ) sin( )]
n n
E E i kz t j kz t
![Page 10: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/10.jpg)
0
0
cos( )
cos( )x x
y y
E E kz t
E E kz t
2 2
2
0 0 0 0
0 0
2 20 0
2 cos sin
2 costan 2
y yx x
y x y x
x y
x y
E EE E
E E E E
E E
E E
Elliptical polarized light
![Page 11: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/11.jpg)
EyE0
xE0
![Page 12: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/12.jpg)
![Page 13: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/13.jpg)
State of Polarization
Plane polarized light : P state
Right circularly polarized light : R state
Left circularly polarized light : L state
Elliptically polarized light : E state
![Page 14: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/14.jpg)
Natural Light
An ordinary light source consists of a very large number of
randomly oriented atomic emitters, which radiates a polarized
wavetrain for roughly 10-8 sec.
![Page 15: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/15.jpg)
Completely polarized
Completely unpolarized
Partially polarized
Degree of polarization
UP
P
II
IP
![Page 16: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/16.jpg)
Malus’s law
![Page 17: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/17.jpg)
Unpolarized light2
0 0(0) cos 2I I I
![Page 18: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/18.jpg)
Malus’s law
2)cos0(II 20(0)
2
EI
![Page 19: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/19.jpg)
Polarizers
Selective absorption or dichorism
Double refraction or birefringes
Reflection
Scattering
![Page 20: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/20.jpg)
Polarization by scattering
![Page 21: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/21.jpg)
Scattering of polarized light by a molecule
![Page 22: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/22.jpg)
Scattering of unpolarized light by a molecule
![Page 23: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/23.jpg)
Why sky looks blue
![Page 24: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/24.jpg)
EarthA
B
C
Blue Sky
![Page 25: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/25.jpg)
Rayleigh scattering4
1
Red Orange Yellow Green Blue Violet
1 2 2.5 3 6 10
![Page 26: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/26.jpg)
Red Sunset
Dust layer
EarthA
B
C
D
![Page 27: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/27.jpg)
White Sun in Blue Sky
![Page 28: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/28.jpg)
Yellow Sky
![Page 29: Polarization of light. In electrodynamics, polarization is the property of electromagnetic wave, such as light, that describes the direction of the transverse](https://reader031.vdocuments.mx/reader031/viewer/2022032106/56649dbe5503460f94ab0c9d/html5/thumbnails/29.jpg)
Red Sunset