BaTiO3 substrate
Tlhaloso
BaTiO3likristale tse le 'ngoe li na le thepa e ntle ea photorefractive, ponahalo e phahameng ea "self-pumped phase conjugation" le "optical zoom" ea motsoako oa maqhubu a mabeli (optical zoom) polokelong ea tlhahisoleseding e nang le lisebelisoa tse kholo, tseo hape e leng lisebelisoa tsa bohlokoa tsa substrate.
Thepa
| Sebopeho sa Crystal | Tetragonal (4m) : 9℃ <T <130.5 ℃a=3.99A, c= 4.04A , |
| Mokhoa oa Kholo | Khōlo ea Tharollo ea Peo e Phahameng |
| Melting Point (℃) | 1600 |
| Density (g/cm3) | 6.02 |
| Dielectric Constants | ea = 3700, ec = 135 (e sa koaheloa)ea = 2400, e c = 60 (tlapetsoe) |
| Index ea Refraction | 515 nm 633 nm 800 nmno 2.4921 2.4160 2.3681ne 2.4247 2.3630 2.3235 |
| Phetiso Wavelength | 0.45 ~ 6.30 limilimithara |
| Electro Optic Coefficients | rT13 = 11.7 ?1.9 pm/V rT 33 =112 ?10 pm/VrT 42= 1920 ?180 pm/V |
| Setšoantšo sa SPPC(ka 0 deg. sehiloeng) | 50 - 70 % ( max. 77%) bakeng sa l = 515 nm50 - 80 % ( boholo: 86.8%) bakeng sa l = 633 nm |
| Maqhubu a mabeli a Kopanyang Coupling Constant | 10 -40 cm-1 |
| Tahlehelo ea ho monya | l: 515 nm 633 nm 800 nm3.392cm-1 0.268cm-1 0.005cm-1 |
BaTiO3 Substrate Definition
BaTiO3 substrate e bolela karoloana ea kristale e entsoeng ka motsoako oa barium titanate (BaTiO3).BaTiO3 ke thepa ea ferroelectric e nang le sebopeho sa kristale ea perovskite, e bolelang hore e na le lisebelisoa tse ikhethang tsa motlakase, e leng se etsang hore e be se loketseng bakeng sa mefuta e sa tšoaneng ea lisebelisoa.
BaTiO3 substrates ba atisa ho sebelisoa tšimong ea tšesaane filimi deposition, 'me ka ho khetheha sebelisoa ho hōla epitaxial tšesaane lifilimi tsa thepa e fapaneng.Sebopeho sa kristale sa substrate se lumella tlhophiso e nepahetseng ea liathomo, e nolofalletsang kholo ea lifilimi tse tšesaane tsa boleng bo holimo tse nang le thepa e ntle ea crystallographic.Lisebelisoa tsa ferroelectric tsa BaTiO3 le tsona li bapala karolo ea bohlokoa lits'ebetsong tse kang lisebelisoa tsa elektroniki le tsa memori.E bonts'a polarization e ikemetseng le bokhoni ba ho fetoha lipakeng tsa linaha tse fapaneng tsa polarization tlas'a tšusumetso ea tšimo e kantle.
Thepa ena e sebelisoa ho mahlale a kang memori e sa fetoheng (memori ea ferroelectric) le lisebelisoa tsa electro-optical.Ho feta moo, li-substrates tsa BaTiO3 li na le ts'ebeliso mafapheng a fapaneng joalo ka lisebelisoa tsa piezoelectric, li-sensor, li-actuator, le likarolo tsa microwave.Lintho tse ikhethang tsa motlakase le tsa mochini tsa BaTiO3 li kenya letsoho ts'ebetsong ea eona, ho etsa hore e tšoanelehe bakeng sa lits'ebetso tsena.
