Materials Science of Electronic and Optoelectronic Devices ...denko/lecture/ouyodenshizair...0.01...
Transcript of Materials Science of Electronic and Optoelectronic Devices ...denko/lecture/ouyodenshizair...0.01...
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Materials Science of Electronic and Optoelectronic Devices
Tadao Tanabe
1
Nov. 16: Photonic Device-BasicNov. 23: -Application
Nov.30 Examination
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Quiz -Photonic Device-
1. What photonic devices do you know? (1~2 devices)
2. Explain the device (structure, function, feature,,, anything OK!)
3. What materials are used in the device?
Student ID: Name: 2
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(1) INTRODUCTION
What is LIGHT?Application of light to our lifeRelation between light and materials
(2) Handling of LIGHT
GenerationPropagation :absorption Condensing(space)Condensing(time)/modulatingAmplificationSelectingDetecting
(3) Understanding of LIGHTfor device fabrication
wavelength/frequencylinewidthpulse durationbeam modepolarizationpower density
(4) Photonic Technology
(5) Applications
Basic of Photonic devices (Tanabe)
3
2018/11/16
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(1) INTRODUCTION
What is LIGHT?electric wave~light (electromagnetic wave)invisible/visiblestraight propagationsolar−blind
due to ozone absorbance of sunlight
Lasersingle-frequencycoherent(coordinate phase)high energy density
wikipedia.org 4below 280 nm
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hyperphysics.phy‐astr.gsu.edu
laserfront.jp
(1) INTRODUCTION
What is LIGHT?electric wave~light (electromagnetic wave)invisible/visiblestraight propagationsolar−blind
Lasersingle-frequencycoherent(coordinate phase)high energy density
light laser
wavelength wavelength
Intensity
Intensity
lightlaser
light
laser
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Application of light(photonic device) to our life
lightingphotographingenergy productioncommunicationnon-destructive inspectionmedical diagnosis/treatment
mitsubishielectric.co.jp
oneslidephotography.com
digitaljournal.com
nonin.com
itmedia.co.jp
furukawa.co.jpcanadianground.com 6
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Evaluation for insulator covered metal surface
defects in the construction
deformed Polyethylene
water diffusionto cracks in the concrete
Concrete
(10mm thickness)
THzimage
non oxide surface:Large
oxide surface:Small insulators
THz transperence:high
Cu cable for Electric power
one-axis deformation
(a)平行偏光 (b)垂直偏光
0.0 0.2 0.4 0.6 0.8 1.0 1.20.00
0.05
0.10
0.15
0.20
0.25
伸び歪
(a)平行偏光
(b)垂直偏光
TH
z吸収
強度
THz Applications: non-destructive inspection
Terahertz=Safety+non-destructivenon-destructive:non-ionized、high-transparencysafety:applicable to practical fields
1.5 2.0 2.5 3.0 3.50.00
0.05
0.10
0.15
0.20
反射
率(%
)
周波数(THz)
酸化物無し 酸化物有り
@1.7THz:酸化物による反射率減少
@2.3THz:酸化物による反射率変化なし
1.5 2.0 2.5 3.0 3.50.00
0.05
0.10
0.15
0.20
反射
率(%
)
周波数(THz)
酸化物無し 酸化物有り
@1.7THz:酸化物による反射率減少
@2.3THz:酸化物による反射率変化なし
( )n・ ・ドーパント
ポリアニリン骨格
104 105 1060.0
0.3
0.6
Molecular Weight
Abs
orba
nce
@4THz
Molecular Weight
crack
THz Reflectivity
perpendicular
parallel
perpendicularparallel Elongation Strain
THz a
bsorption
framework
dopant
dependence on surface condition
no dependence
Frequency (THz)
Refle
ctivity
non‐oxide
oxide
Refle
ctivity
Absorbance
THzspectrum THz
Imaging
frequencyposition
peak
normaldamaged
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Application of light(photonic device) to our life
lighting: Lamp, LEDphotographing: CCD, CMOSenergy production: Solar Cellcommunication: LD, PIN-Diodenon-destructive inspection: Infrared-THZmedical diagnosis/treatment: LED/Laser
kaden.watch.impress.co.jp
oneslidephotography.com
LED
photonicsonline.com
CCD CMOS
PIN‐Diode
8
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Relation between light and materials
lighting: Lamp, LED: GaAsP, GaNphotographing: CCD, CMOS: Sienergy production: Solar Cell: Si, GaAscommunication: LD, PIN-Diode: InPnon-destructive inspection: THZ: GaP, GaSemedical diagnosis/treatment: LED/Laser: GaAs, CO2
9led.or.jp
blue
red
wav
elen
gth
GaN
GaP
GaAs
AlInGaP
GaAsP
GaAlAs
ZnO
semiconductors
e-
+-
n-type p-type
----
h
sonyalpharumors.com
nonin.com
novuslight.com
intechopen.com
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hyperphysics.phy‐astr.gsu.edu
(2) Handling of LIGHT
Generationheatingenergy gap in semiconductornonlinear optical process(frequency-mixing: DFG, SFG, SHG)
10
Ph.D. Thesis@Simone Montanari
todayifoundout.com
ElectroLuminescence
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表面技術 61 (2010)板東 完治
鍋谷暢一先生の資料
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Lattice constant
Lattice constant
Band
gap en
ergy
Band
gap en
ergy
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12
@panasonic
spectral luminous efficiency
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R+G+B=1(100%)
dic‐color
my‐craft.jp
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(2) Handling of LIGHT
Generationheatingenergy gap in semiconductornonlinear optical process(frequency-mixing: DFG, SFG, SHG)
difference-frequency generation (DFG)
1E-3
0.01
0.1
1
10
100
0.1 1 10 100
THz-
wav
e po
wer
(mW
)
GaPeoo
oee
GaSe
CdSe
ZnGeP2(oee)
ZnGeP2(oee)
THz-wave power (mW)Frequency (THz)
Wavelength m)300 30 33000
ω3=50THz(60m)
ω2=232THz(1.3m)
ω1=282THz(1.064m)
t
t
t
P(1)
P(2)
P()
laser
Low Power: Linear
High Power: nonlinear
P=0(1)E+0(2)E2+0(3)E3+・・・
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nonlinear electronic polarizationP + SP - S
・・
DFGincident beams
(near‐IR)
PS
nonlinear optical effect
difference‐frequencyP - S
(THz vibrations)
2
2
tPE
phonon‐polariton(in GaP crystals)
EM‐wave emission
THz=P - S
Interactionwith TO-phonon
Propagationfrom GaP
THz-wave radiation
THz
k
TO
THz-waveTHz
k Pk S k THz
phase matched
P S
THz-wave generationnonlinear phase-matching condition
small angle phase matching
THz-wave generation based on non-collinear phase-matched DFG in phonon-polariton of GaP
small angle tuning of two incident beams enables to generate tunable THz-wave
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covesion.com
Claudio Attaccalite, CNRS researcher at Neel Institute Grenoble 16
(2) Handling of LIGHT
Generationheatingenergy gap in semiconductornonlinear optical process(frequency-mixing: DFG, SFG, SHG)
nb.uw.edu
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Quantitative Evaluation of Collagen Fiber Structure in Human Dermis Based on Two‐Dimensional Auto‐Correlation Analysis of SHG (Second Harmonic Generation) Image
Transactions of Japanese Society for Medical and Biological Engineering Vol. 55 (2017) No. 2 p. 91‐96
17
(2) Handling of LIGHT
Generationheatingenergy gap in semiconductornonlinear optical process(frequency-mixing: DFG, SFG, SHG)
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(2) Handling of LIGHT
Propagation :absorption in air, liquid and solid:reflection, refraction, diffraction, absorption and scattering
waveguideoptical fiber
ln T : TransmittanceX1, x2 : Thickness
100%
R%
T%(measurement)100‐R
T%=(100‐R) e‐α・xX
18
Absorption
physics.louisville.edu
flinnsci.com
Diffraction
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(2) Handling of LIGHT
Propagation :absorption in air, liquid and solid:reflection, refraction, diffraction, absorption and scattering
waveguideoptical fiber
panasonic.com
Anti-Reflection coating
No coating AR coating
lens lens
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(2) Handling of LIGHT
Propagation :absorption in air, liquid and solid:reflection, refraction, diffraction, absorption and scattering
waveguideoptical fiber
ccs‐inc.co.jp
iLectureonline
Nature Protocols 11, 664–687 (2016)