Gawo la YVO4
Kufotokozera
YVO4 ndi kristalo wabwino kwambiri wa birefringent wogwiritsa ntchito fiber optics.Zomwe zimakhala bwino kutentha kutentha ndi thupi ndi makina katundu.Ndi yabwino kwa zigawo za optical polarizing chifukwa cha mawonekedwe ake ambiri komanso ma birefringence akulu.Ndiwopanga m'malo mwa makristasi a Calcite (CaCO3) ndi Rutile (TiO2) pamapulogalamu ambiri kuphatikiza ma fiber optic isolator ndi ma circulator, interleavers, ma displacers ndi ma optics ena polarizing.
Katundu
| Transparency Range | Kutumiza kwakukulu kuchokera ku 0.4 mpaka 5 μm |
| Crystal Symmetry | Zircon Tetragonal, gulu la danga D4h |
| Crystal Cell | a=b=7.12A;c=6.29A |
| Kuchulukana | 4.22g/cm3 |
| Kuuma (Mho) | 5, ngati galasi |
| Hygroscopic Susceptibility | Non-hygroscopic |
| Thermal Expansion Coefficiet | αa=4.43x10-6/K;αc=11.37x10-6/K |
| Thermal Conductivity Coefficient | //C:5.23 W/m/K;⊥C:5.10 W/m/K |
| Kalasi ya Crystal: | Uniaxial wabwino wokhala ndi no=na=nb,ne=nc |
| Thermal Optical Coefficient | Dna/dT=8.5x10-6/K;dnc/dT=3.0x10-6/K |
| Refractive Indices, Birefringence (△n=ne-no) ndi Walk-off Angle pa 45°(ρ) | no=1.9929,ne=2.2154,△n=0.2225,ρ=6.04° pa 630nm |
| Sellmeier Equation (λ in μm) | no2=3.77834+0.069736/(λ2-0.04724)-0.0108133λ2 ne2=4.59905+0.110534/(λ2-0.04813)-0.0122676λ2 |
Tanthauzo la Gawo la YVO4
Gawo la YVO4 (Yttrium Orthovanadate) limatanthawuza chinthu cha crystalline chomwe chimagwiritsidwa ntchito popanga mitundu yosiyanasiyana ya kuwala ndi ma optoelectronic.Nazi mfundo zazikuluzikulu za magawo a YVO4:
1. Kapangidwe ka kristalo: YVO4 ili ndi mawonekedwe a kristalo a tetragonal, ndipo maatomu a yttrium, vanadium, ndi mpweya wa okosijeni amapangidwa mu latisi yamitundu itatu.Ndi ya orthorhombic crystal system.
2. Kutumiza kwa kuwala: YVO4 ili ndi kuwala kosiyanasiyana, kuchokera pafupi ndi ultraviolet (UV) kupita kumadera apakati a infrared (IR).Imatha kutumiza kuwala kuchokera pafupifupi 0.4 μm mpaka 5 μm, ndikupangitsa kuti ikhale yoyenera pamitundu yosiyanasiyana yamagetsi.
3. Birefringence: YVO4 ili ndi birefringence yolimba, ndiko kuti, ili ndi zizindikiro zosiyana zowonetsera kuwala kosiyana.Katunduyu ndi wofunikira pamapulogalamu monga ma waveplates ndi zosefera polarizing.
4. Zopanda mawonekedwe owoneka bwino: YVO4 ili ndi mawonekedwe abwino kwambiri osawoneka bwino.Itha kupanga ma frequency atsopano kapena kusintha mawonekedwe a kuwala kwa zochitika kudzera mumayendedwe osagwirizana.Katunduyu amagwiritsidwa ntchito ngati kuwirikiza kawiri (m'badwo wachiwiri wa harmonic) wa ma laser.
5. High Laser Damage Threshold: YVO4 ili ndi malo owonongeka a laser, omwe amatanthauza kuti akhoza kupirira zitsulo zamphamvu kwambiri popanda kuwonongeka kwakukulu kapena kuwonongeka.Izi zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito mphamvu zambiri za laser.
6. Thermodynamic properties: YVO4 ili ndi kukhazikika kwabwino kwa kutentha ndi mphamvu zamakina, zomwe zimathandiza kuti zithe kupirira kusintha kwa kutentha ndi kupsinjika kwa makina popanda kusintha kwakukulu kapena kuwonongeka.
7. Kukhazikika kwa mankhwala: YVO4 ili ndi kukhazikika kwa mankhwala ndipo imagonjetsedwa ndi zosungunulira wamba ndi ma asidi, kuonetsetsa kuti ikhale yolimba komanso yodalirika pansi pazikhalidwe zosiyanasiyana zogwirira ntchito ndi malo.
Magawo a YVO4 amagwiritsidwa ntchito kwambiri pamakina a laser, ma amplifiers optical, ma frequency converters, ma splitter amitengo, ndi ma wave plate.Kuphatikizika kwake kwa mawonekedwe owoneka bwino, birefringence, mawonekedwe osawoneka bwino, kuwonongeka kwakukulu kwa laser, komanso kukhazikika kwamafuta ndi makina kumapangitsa kukhala chinthu chosunthika m'magawo a optics ndi optoelectronics.
