BaTiO3 gawo lapansi
Kufotokozera
BATIO3makhiristo amodzi ali ndi zinthu zabwino kwambiri za Photorefractive, chiwonetsero champhamvu chodziyimira pawokha komanso kusakanikirana kwamafunde awiri (optical zoom) moyenera pakusungirako zidziwitso zokhala ndi ntchito zazikulu, zomwe ndizofunikanso gawo lapansi.
Katundu
| Kapangidwe ka Crystal | Tetragonal (4m): 9℃ <T <130.5 ℃a=3.99A, c= 4.04A , |
| Njira Yakukula | Kukula kwa Njira Yabwino Kwambiri |
| Melting Point (℃) | 1600 |
| Kachulukidwe (g/cm3) | 6.02 |
| Dielectric Constants | ea = 3700, ec = 135 (osadulidwa)ea = 2400, e c = 60 (wotsekeredwa) |
| Index of Refraction | 515 nm 633 nm 800 nmno 2.4921 2.4160 2.3681ndi 2.4247 2.3630 2.3235 |
| Kutumiza Wavelength | 0.45 ~ 6.30 mm |
| Electro Optic Coefficients | rT13 = 11.7 ?1.9 pm/V rT 33 =112 ?10 pm/VrT 42= 1920 ?180 pm/V |
| Kusintha kwa mtengo wa SPPC(pa 0 deg. kudula) | 50 - 70% (max. 77%) kwa l = 515 nm50 - 80% ( max: 86.8%) pa l = 633 nm |
| Awiri yoweyula Mixing Coupling Constant | 10-40cm-1 |
| Kutaya Mayamwidwe | L: 515 nm 633 nm 800 nmKutalika: 3.392cm-1 0.268cm-1 0.005cm-1 |
Tanthauzo la Gawo la BaTiO3
BaTiO3 gawo lapansi limatanthawuza gawo lapansi la crystalline lopangidwa ndi barium titanate (BaTiO3).BaTiO3 ndi ferroelectric material ndi perovskite crystal structure, zomwe zikutanthauza kuti zimakhala ndi magetsi apadera, zomwe zimapangitsa kuti zikhale zabwino kwa ntchito zosiyanasiyana.
Magawo a BaTiO3 nthawi zambiri amagwiritsidwa ntchito popanga filimu yopyapyala, ndipo amagwiritsidwa ntchito makamaka kukulitsa mafilimu oonda a epitaxial azinthu zosiyanasiyana.Mapangidwe a crystalline a gawo lapansi amalola kukonzedwa bwino kwa maatomu, kupangitsa kukula kwa makanema owonda kwambiri okhala ndi zinthu zabwino kwambiri za crystallographic.Mphamvu zamagetsi za BaTiO3 zimagwiranso ntchito kwambiri pazinthu monga zamagetsi ndi zida zamakumbukiro.Imawonetsa polarization modzidzimutsa komanso kuthekera kosinthana pakati pa mayiko osiyanasiyana mothandizidwa ndi gawo lakunja.
Katunduyu amagwiritsidwa ntchito muukadaulo monga kukumbukira kosasunthika (ferroelectric memory) ndi zida za electro-optical.Kuphatikiza apo, magawo a BaTiO3 ali ndi ntchito m'magawo osiyanasiyana monga zida za piezoelectric, masensa, ma actuator, ndi ma microwave.Mphamvu yapadera yamagetsi ndi makina a BaTiO3 imathandizira kuti igwire ntchito, ndikupangitsa kuti ikhale yoyenera kugwiritsa ntchito izi.
