Theory : Photonics
⑭
The photo-electric effect (1903's Nobel Price) :
incident
se
--
*
ejectedelectron
- - -
-
--
metal surface
How an
image sensor works ?
·
et
of electrons and photons
Energy of heat (3)
S
E =
quantity
of matter-at rest mc
m = mars
(kg)
Energy 5 E =
ch =
speed of light in vacuum 299 792
. . 458 mis
10-34 J/H2
Energy of photons -
in motion o
E = hf E h
f
=
=
planck constant
frequency (Hz)
6 62607015
.
x
E2
pic2
E2 = (m(2)" + (p()) m2 c4
M
momentum (kgm/s)
p = nx = n9f
Spectrum
Radio waves s microwaves - infrared - visible light s ultraviolet -
x-rays
radiation
C
Non-ionising sionising radiations
↳ Spectrometer
, Coherence
·DDDDDDmnomon
Constant (volts)
en
s(t) = A cos (2π ft + b) + c
amplitude" frequency phase
(volts) Chertz) (radians)
focusing lins
Laser beamwaist
Acte
:
EFLY
-
effective focal length
Light pathe
Reflection
·Reflection
de
n
A S
2
Smooth surface :
9
Rough surface :
-
↳
-
specular diffuse
Attenuation Regular black pigments do not absorb
light
Refraction
Material Index of refraction
Un
On
Vacuum 1 .
00
Shell's law
Air 1
.
000277
& Sino
= Sin
Or
Diamond . 417
2 Vz
↳ two parallel beams enter a
prism :
=
..
00
⑭
The photo-electric effect (1903's Nobel Price) :
incident
se
--
*
ejectedelectron
- - -
-
--
metal surface
How an
image sensor works ?
·
et
of electrons and photons
Energy of heat (3)
S
E =
quantity
of matter-at rest mc
m = mars
(kg)
Energy 5 E =
ch =
speed of light in vacuum 299 792
. . 458 mis
10-34 J/H2
Energy of photons -
in motion o
E = hf E h
f
=
=
planck constant
frequency (Hz)
6 62607015
.
x
E2
pic2
E2 = (m(2)" + (p()) m2 c4
M
momentum (kgm/s)
p = nx = n9f
Spectrum
Radio waves s microwaves - infrared - visible light s ultraviolet -
x-rays
radiation
C
Non-ionising sionising radiations
↳ Spectrometer
, Coherence
·DDDDDDmnomon
Constant (volts)
en
s(t) = A cos (2π ft + b) + c
amplitude" frequency phase
(volts) Chertz) (radians)
focusing lins
Laser beamwaist
Acte
:
EFLY
-
effective focal length
Light pathe
Reflection
·Reflection
de
n
A S
2
Smooth surface :
9
Rough surface :
-
↳
-
specular diffuse
Attenuation Regular black pigments do not absorb
light
Refraction
Material Index of refraction
Un
On
Vacuum 1 .
00
Shell's law
Air 1
.
000277
& Sino
= Sin
Or
Diamond . 417
2 Vz
↳ two parallel beams enter a
prism :
=
..
00
