Materials Science of Electronic and Optoelectronic Devices ...denko/lecture/ouyodenshizair...0.01 0.1 1 10 100 0.1 1 10 100 THz-wave power (mW) eoo GaP oee GaSe CdSe ZnGeP 2 (oee)

Materials Science of Electronic and Optoelectronic Devices

Tadao Tanabe

1

Nov. 16： Photonic Device-BasicNov. 23： -Application

Nov.30 Examination

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

(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

(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

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

5

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

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・・ﾄﾞｰﾊﾟﾝﾄ

ﾎﾟﾘｱﾆﾘﾝ骨格

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

7

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

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

hyperphysics.phy‐astr.gsu.edu


Generationheatingenergy gap in semiconductornonlinear optical process(frequency-mixing: DFG, SFG, SHG)

10

Ph.D. Thesis@Simone Montanari

todayifoundout.com

ElectroLuminescence

表面技術 61 (2010)板東完治

鍋谷暢一先生の資料

11

Lattice constant

Lattice constant

Band

gap en

ergy

Band

gap en

ergy

12

@panasonic

spectral luminous efficiency

R＋G＋B＝1（100％）

dic‐color

my‐craft.jp



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+･･･

14

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

15

covesion.com

Claudio Attaccalite, CNRS researcher at Neel Institute Grenoble 16



nb.uw.edu

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




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

19




panasonic.com

Anti-Reflection coating

No coating AR coating

lens lens

20




ccs‐inc.co.jp

iLectureonline

Nature Protocols 11, 664–687 (2016)

Documents

Materials Science of Electronic and Optoelectronic Devices ...denko/lecture/ouyodenshizair...0.01 0.1 1 10 100 0.1 1 10 100 THz-wave power (mW) eoo GaP oee GaSe CdSe ZnGeP 2 (oee)