LiTaO3 Substrate
Kev piav qhia
LiTaO3 ib leeg siv lead ua tau zoo heev electro-optic, piezoelectric thiab pyroelectric zog, thiab yog dav siv nyob rau hauv pyroelectric li thiab xim TV.
Cov khoom
| Crystal Structure | M6 |
| Unit Cell Constant | a = 5.154 c = 13.783 Å |
| Melt Point (℃) | 1650 |
| Qhov ceev (g / cm3) | 7.45 Nws |
| Hardness (Mho) | 5.5 ~ 6 |
| Xim | Tsis muaj xim |
| Index ntawm Refraction | tsis = 2.176 ne = 2.180 (633nm) |
| Los ntawm Scope | 0.4 ~ 5.0 hli |
| Resistance Coefficient | 1015 wb |
| Dielectric Constants | es11/eo:39~43 es33/eo:42~43 |
| Thermal Expansion | aa=1.61×10-6/k, ac=4.1×10-6/k |
LiTaO3 Substrate txhais
LiTaO3 (lithium tantalate) substrate yog hais txog cov khoom siv crystalline uas feem ntau siv hauv ntau yam khoom siv hluav taws xob thiab optoelectronic.Nov yog qee cov ntsiab lus tseem ceeb txog LiTaO3 substrates:
1. Cov qauv siv lead ua: LiTaO3 muaj cov qauv siv lead ua perovskite, uas yog tus cwj pwm los ntawm peb-dimensional network qauv ntawm oxygen atoms nyob rau hauv uas lithium thiab tantalum atoms tuav cov haujlwm tshwj xeeb.
2. Piezoelectric zog: LiTaO3 yog piezoelectric heev, uas txhais tau tias nws generates ib tug hluav taws xob nqi thaum raug rau txhua yam kev nyuaj siab thiab vice versa.Cov yam ntxwv no ua rau nws muaj txiaj ntsig hauv ntau yam khoom siv acoustic yoj xws li nto acoustic yoj (SAW) lim thiab resonators.
3. Nonlinear optical zog: LiTaO3 nthuav tawm cov khoom muaj zog nonlinear kho qhov muag, ua kom nws tsim cov zaus tshiab lossis hloov cov yam ntxwv ntawm lub teeb teeb meem los ntawm kev sib cuam tshuam tsis sib xws.Nws feem ntau yog siv nyob rau hauv cov khoom siv siv thib ob harmonic tiam (SHG) los yog optical parametric oscillation (OPO), xws li zaus ob npaug ntawm cov muaju los yog kho qhov muag modulators.
4. Ntau yam ntawm pob tshab: LiTaO3 muaj ntau qhov kev pom tseeb ntawm ultraviolet (UV) mus rau thaj tsam infrared (IR).Nws tuaj yeem xa lub teeb los ntawm kwv yees li 0.38 μm mus rau 5.5 μm, ua rau nws haum rau ntau yam kev siv optoelectronic kev khiav hauj lwm hauv qhov ntau.
5. High Curie kub: LiTaO3 muaj qhov kub siab Curie (Tc) txog 610 ° C, uas yog qhov kub thiab txias uas nws cov khoom piezoelectric thiab ferroelectric ploj.Qhov no ua rau nws haum rau cov ntawv thov kub xws li lub zog hluav taws xob acoustic yoj cov cuab yeej lossis cov ntsuas kub siab.
6. Chemical stability: LiTaO3 yog chemically ruaj khov thiab resistant rau feem ntau cov kuab tshuaj thiab acids.Qhov kev ruaj ntseg no ua kom cov kav ntev thiab kev ntseeg siab ntawm cov substrate nyob rau hauv ntau yam kev ua haujlwm thiab ib puag ncig.
7. Cov khoom siv hluav taws xob zoo thiab thermal: LiTaO3 muaj lub zog zoo txhua yam thiab thermal stability, ua rau nws tuaj yeem tiv taus txhua yam kev ntxhov siab thiab kub siab yam tsis muaj qhov tseem ceeb deformation lossis degradation.Qhov no ua rau nws tsim nyog rau kev siv hluav taws xob siab lossis ib puag ncig nrog hnyav txhua yam lossis thermal tej yam kev mob.
LiTaO3 substrates yog dav siv nyob rau hauv ntau yam kev siv xws li SAW li, zaus ob zaug li, optical modulators, optical waveguides, thiab lwm yam. cov khoom ua rau nws muaj ntau yam khoom siv hauv kev siv hluav taws xob thiab optoelectronics.
