Gawo la LiTaO3
Kufotokozera
LiTaO3 single crystal ili ndi zinthu zabwino kwambiri za electro-optic, piezoelectric ndi pyroelectric, ndipo imagwiritsidwa ntchito kwambiri pazida za pyroelectric ndi mtundu wa TV.
Katundu
| Kapangidwe ka Crystal | M6 |
| Unit Cell Constant | a=5.154Å c=13.783 Å |
| Melt Point (℃) | 1650 |
| Kachulukidwe (g/cm3） | 7.45 |
| Kuuma (Mho) | 5.5-6 |
| Mtundu | Zopanda mtundu |
| Index of Refraction | no=2.176 ne=2.180 (633nm) |
| Kudzera mu Scope | 0.4 ~ 5.0mm |
| Resistance Coefficient | 1015wm |
| Dielectric Constants | es11/eo:39~43 es33/eo:42~43 |
| Kuwonjezedwa kwa Matenthedwe | aa=1.61×10-6/k, ac=4.1×10-6/k |
LiTaO3 Substrate Tanthauzo
Gawo laling'ono la LiTaO3 (lithium tantalate) limatanthawuza chinthu cha crystalline chomwe chimagwiritsidwa ntchito pamagetsi osiyanasiyana ndi ma optoelectronic.Nazi mfundo zazikuluzikulu za magawo a LiTaO3:
1. Kapangidwe ka kristalo: LiTaO3 ili ndi mawonekedwe a kristalo a perovskite, omwe amadziwika ndi mawonekedwe atatu a ma atomu a okosijeni omwe lifiyamu ndi maatomu a tantalum amakhala ndi malo enieni.
2. Piezoelectric properties: LiTaO3 ndi piezoelectric kwambiri, zomwe zikutanthauza kuti imapanga magetsi a magetsi pamene akukumana ndi zovuta zamakina komanso mosiyana.Izi zimapangitsa kuti zikhale zothandiza pazida zosiyanasiyana zamayimbidwe amayimbidwe monga zosefera zamtundu wa acoustic wave (SAW) ndi ma resonators.
3. Zopanda mawonekedwe owoneka bwino: LiTaO3 imawonetsa mawonekedwe amphamvu osawoneka bwino, omwe amawathandiza kupanga ma frequency atsopano kapena kusintha mawonekedwe a kuwala kwa zochitika kudzera muzosagwirizana.Amagwiritsidwa ntchito pazida zomwe zimagwiritsa ntchito Second harmonic generation (SHG) kapena Optical parametric oscillation (OPO), monga ma crystal owirikiza kawiri kapena ma modulator owoneka.
4. Kuwonekera kosiyanasiyana: LiTaO3 ili ndi mawonekedwe osiyanasiyana kuchokera ku ultraviolet (UV) kupita ku dera la infrared (IR).Imatha kutumiza kuwala kuchokera pafupifupi 0.38 μm mpaka 5.5 μm, ndikupangitsa kuti ikhale yoyenera pamitundu yosiyanasiyana ya optoelectronic yomwe ikugwira ntchito mosiyanasiyana.
5. Kutentha kwapamwamba kwa Curie: LiTaO3 ili ndi kutentha kwa Curie (Tc) kwa pafupifupi 610 ° C, komwe ndi kutentha komwe katundu wake wa piezoelectric ndi ferroelectric amatha.Izi zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito kutentha kwakukulu monga zida zamphamvu zamawu omveka bwino kapena masensa apamwamba kwambiri.
6. Kukhazikika kwa Chemical: LiTaO3 imakhala yokhazikika pamakina komanso imalimbana ndi zosungunulira komanso ma acid.Kukhazikika kumeneku kumatsimikizira kulimba ndi kudalirika kwa gawo lapansi muzochitika zosiyanasiyana zogwirira ntchito ndi malo.
7. Zabwino zamakina ndi zotentha: LiTaO3 ili ndi mphamvu zamakina abwino komanso kukhazikika kwamafuta, zomwe zimawathandiza kupirira kupsinjika kwamakina ndi kutentha kwakukulu popanda kusintha kwakukulu kapena kuwonongeka.Izi zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito mphamvu zambiri kapena malo omwe ali ndi makina okhwima kapena otentha.
Magawo a LiTaO3 amagwiritsidwa ntchito kwambiri m'mapulogalamu osiyanasiyana kuphatikiza zida za SAW, zida zowirikiza kawiri kawiri, makina owoneka bwino, ma waveguides owoneka bwino, ndi zina zambiri. Kuphatikiza kwake kwa piezoelectric ndi zinthu zopanda mawonekedwe owoneka bwino, kuwonekera kwakukulu, kutentha kwa Curie, kukhazikika kwamankhwala, ndi makina abwino komanso matenthedwe. katundu amapanga zinthu zosunthika m'munda wa zamagetsi ndi optoelectronics.
