BaTiO3 substrate
Sharaxaada
BaTiO3kiristaalo hal leeyihiin guryaha photorefractive heer sare ah, milicsiga sare ee isku-xidhka wajiga is-bamgareeyay iyo laba-mawjadaha qaso ( zoom indhaha) hufnaan ee kaydinta macluumaadka indhaha la codsiyada iman kara weyn, kaas oo sidoo kale ah qalab substrate muhiim ah.
Guryaha
| Dhismaha Crystal | Tetragonal (4m): 9℃ <T <130.5 ℃a=3.99A, c=4.04A, |
| Habka Kobaca | Kobaca Xalka Seed ee ugu sarreeya |
| Meesha dhalaalaysa (℃) | 1600 |
| Cufnaanta (g/cm3) | 6.02 |
| Dielectric Constant | ea = 3700, ec = 135 (aan xidhnayn)ea = 2400, e c = 60 (la dhejiyay) |
| Tusmada Milicsiga | 515 nm 633 nm 800 nmMaya 2.4921 2.4160 2.3681ne 2.4247 2.3630 2.3235 |
| Mawjada Gudbinta | 0.45 ~ 6.30 mm |
| Isku-xireyaasha Electro Optic | rT13 = 11.7 ?1.9 pm/V rT 33 =112 ?10 pm/VrT 42= 1920 ?180 pm/V |
| Milicsiga SPPC(oo ah 0 deg. jarjar) | 50 - 70 % (max. 77%) ee l = 515 nm50 - 80 % ( ugu badnaan: 86.8%) l = 633 nm |
| Joogtada Isku-dhafka Laba-mawjadaha | 10 -40 cm-1 |
| Luminta nuugista | l: 515 nm 633 nm 800 nma: 3.392cm-1 0.268cm-1 0.005cm-1 |
BaTiO3 Qeexitaan Substrate
Substrate BaTiO3 waxa loola jeedaa substrate crystalline ka samaysan barium titanate (BaTiO3).BaTiO3 waa qalab ferroelectric ah oo leh qaab-dhismeedka crystal perovskite, taas oo macnaheedu yahay in ay leedahay sifooyin koronto oo gaar ah, taas oo ka dhigaysa mid ku habboon codsiyada kala duwan.
BaTiO3 substrates waxaa inta badan loo isticmaalaa berrinkii filim khafiif ah, oo waxaa si gaar ah loo isticmaalo si ay u koraan epitaxial dhuuban filimada maaddooyinka kala duwan.Qaab dhismeedka kristantaalka ah ee substrate-ka ayaa u oggolaanaya habayn sax ah oo atamka ah, taas oo awood u siinaysa koritaanka filimyo khafiif ah oo tayo sare leh oo leh sifooyin crystallographic aad u fiican.Qalabka ferroelectric ee BaTiO3 sidoo kale waxay door muhiim ah ka ciyaaraan codsiyada sida elektiroonigga iyo aaladaha xusuusta.Waxay soo bandhigaysaa polarization kedis ah iyo awoodda ay u kala beddelanto dawladaha kala duwan ee polarisation iyadoo ay saameynayso goob dibadda ah.
Hantidan waxaa loo isticmaalaa teknoolojiyadda sida xusuusta aan kacsanayn (xusuusta ferroelectric) iyo aaladaha korantada.Intaa waxaa dheer, BaTiO3 substrates waxay leeyihiin codsiyo dhinacyo kala duwan ah sida aaladaha piezoelectric, dareemayaasha, kiciyayaasha, iyo qaybaha microwave.Qalabka korantada iyo farsamada gaarka ah ee BaTiO3 waxay gacan ka geystaan shaqaynteeda, taasoo ka dhigaysa mid ku habboon codsiyadan.
