Substrate LiTaO3
Sharaxaada
Hal crystal LiTaO3 ayaa leh koronto-optic aad u wanaagsan, piezoelectric iyo pyroelectric guryaha, waxaana si weyn loogu isticmaalaa aaladaha pyroelectric iyo TV-ga midabka.
Guryaha
| Dhismaha Crystal | M6 |
| Cutubka Joogtada ah | a=5.154Å c=13.783 Å |
| Dhibicda dhalaalka (℃) | 1650 |
| Cufnaanta (g/cm3) | 7.45 |
| Adag (Mho) | 5.5 ~ 6 |
| Midabka | Midab la'aan |
| Tusmada Milicsiga | maya=2.176 ne=2.180 (633nm) |
| Iyadoo loo marayo Baaxadda | 0.4 ~ 5.0mm |
| Isbahaysiga iska caabinta | 1015wm |
| Dielectric Constant | es11/eo:39~43 es33/eo:42~43 |
| Balaadhinta kulaylka | aa=1.61×10-6/k,ac=4.1×10-6/k |
Qeexida Substrate-ka ee LiTaO3
Substrate LiTaO3 (lithium tantalate) waxaa loola jeedaa walxo crystalline ah oo caadi ahaan loo isticmaalo codsiyada elektarooniga ah iyo kuwa indhaha ee kala duwan.Waa kuwan qaar ka mid ah qodobbada muhiimka ah ee ku saabsan substrate-ka LiTaO3:
1. Qaab dhismeedka Crystal: LiTaO3 waxay leedahay qaab-dhismeedka crystal perovskite, kaas oo lagu garto qaab-dhismeedka shabakad saddex-geesood ah oo atamka ogsijiinta kaas oo lithium iyo atamka tantalum ay ku jiraan meelo gaar ah.
2. Qalabka Piezoelectric: LiTaO3 waa piezoelectric heer sare ah, taas oo macnaheedu yahay in ay soo saarto koronto marka ay la kulmaan cadaadis farsamo iyo liddi ku ah.Habkani waxa uu ka dhigayaa mid faa'iido u leh aaladaha kala duwan ee hirarka dhawaaqa sida miirayaasha hirarka dhawaaqa sare (SAW) iyo resonators.
3. Guryaha indhaha ee aan tooska ahayn: LiTaO3 waxay soo bandhigtaa sifooyin muuqaal ah oo xooggan, taas oo awood u siinaysa inay abuurto soo noqnoqosho cusub ama beddelo sifooyinka iftiinka dhacdada iyada oo loo marayo isdhexgalka aan tooska ahayn.Sida caadiga ah waxaa loo adeegsadaa aaladaha isticmaalaya jiilka labaad ee iswaafajinta (SHG) ama oscillation optical parametric oscillation (OPO), sida kiristaalo labanlaabmaya soo noqnoqda ama modulators indhaha.
4. Daah-furnaan ballaaran: LiTaO3 waxay leedahay daah-furnaan ballaaran oo ka bilaabma ultraviolet (UV) ilaa gobolka infrared (IR).Waxay gudbin kartaa iftiinka qiyaastii 0.38 μm ilaa 5.5 μm, taasoo ka dhigaysa mid ku habboon noocyo kala duwan oo ah codsiyada optoelectronic ee ka shaqeeya xadkan.
5. Heerkulka Curie Sare: LiTaO3 waxa ay leedahay heer kulka Curie (Tc) aad u sarreeya oo qiyaastii ah 610°C, kaas oo ah heerkulka ay ku baaba'aan astaamihiisa piezoelectric iyo ferroelectric.Tani waxay ka dhigaysaa mid ku habboon codsiyada heerkulka sare sida aaladaha hirarka codka sare leh ama dareemayaasha heerkulka sare.
6. Degganaanshaha kiimikaad: LiTaO3 kiimikaad ahaan waa u xasilloon oo adkaysi u leh dareerayaasha iyo asiidhyada caadiga ah.Xasiloonidani waxay hubisaa adkeysiga iyo isku halaynta substrate ee xaaladaha kala duwan ee hawlgalka iyo jawiga.
7. Qalabka wanaagsan ee farsamada iyo kulaylka: LiTaO3 waxay leedahay awood farsamo oo wanaagsan iyo xasilloonida kulaylka, taas oo u oggolaanaysa inay u adkeysato diiqada farsamada iyo heerkulka sare iyada oo aan la helin isbeddel weyn ama hoos u dhac.Tani waxay ka dhigaysaa mid ku habboon codsiyada awoodda sare leh ama bay'adaha leh xaalado farsamo ama kulayl adag.
Substrates LiTaO3 waxaa si weyn loogu isticmaalaa codsiyada kala duwan oo ay ku jiraan qalabka SAW, qalabka soo noqnoqda labalaabista, modulators indhaha, waveguides indhaha, iwm guryaha ayaa ka dhigaya wax badan oo ka mid ah qalabka elektiroonigga ah iyo optoelectronics.
