Gawo la LiF
Kufotokozera
LiF2 Optical crystal ili ndi magwiridwe antchito abwino kwambiri a IR pamawindo ndi mandala.
Katundu
| Kachulukidwe (g/cm3） | 2.64 |
| Melting Point (℃) | 845 |
| Thermal Conductivity | 11.3 Wm-1K-1 pa 314K |
| Kuwonjezedwa kwa Matenthedwe | 37 x 10-6 / ℃ |
| Kuuma (Mho) | 113 ndi 600g indenter (kg/mm2) |
| Kuthekera Kwake Kutentha | 1562 J/(kg.k) |
| Dielectric Constant | 9.0 pa 100Hz |
| Youngs Modulus (E) | 64.79 GPA |
| Shear Modulus (G) | 55.14 GPA |
| Kuchuluka kwa Modulus (K) | 62.03 GPA |
| Kuphulika Modulus | 10.8 MPa |
| Elastic Coefficient | C11=112;C12 = 45.6;C44=63.2 |
LiF Substrate Tanthauzo
Magawo a LiF (lithium fluoride) amatanthawuza zinthu zomwe zimagwiritsidwa ntchito ngati maziko kapena chithandizo chanjira zingapo zowonda zamakanema a optics, photonics ndi microelectronics.LiF ndi kristalo wowonekera komanso woteteza kwambiri wokhala ndi bandeji yayikulu.
Magawo a LiF amagwiritsidwa ntchito kwambiri popanga filimu yopyapyala chifukwa chowonekera bwino kwambiri m'dera la ultraviolet (UV) komanso kukana kutentha ndi kusintha kwamankhwala.Ndizoyenera kwambiri kugwiritsa ntchito monga zokutira zowoneka bwino, kuyika filimu yopyapyala, ma spectroscopy ndi ma electron microscopy.
Magawo a LiF nthawi zambiri amasankhidwa ngati zida zam'munsi chifukwa amayamwa pang'ono mumtundu wa UV ndipo amakhala osalala kuti athe kuyeza molondola komanso moyenera kapena kuwunika.Kuphatikiza apo, LiF imawonetsa kukhazikika kwabwino pakutentha kwambiri ndipo imatha kupirira njira zingapo zoyika monga kutulutsa kwamafuta, kutulutsa, ndi ma epitaxy a molecular.
Katundu wa magawo a LiF amawapangitsa kukhala oyenera kugwiritsidwa ntchito mu UV Optics, lithography, ndi X-ray crystallography.Kukaniza kwawo kuzinthu zachilengedwe komanso kukhazikika kwamankhwala kumawapangitsa kukhala zida zosunthika pazofufuza zosiyanasiyana komanso ntchito zamafakitale.
Zogwirizana nazo
LiF (lithium fluoride) imadziwika kwambiri chifukwa cha mawonekedwe ake abwino kwambiri a infrared (IR) ngati chinthu chowunikira pamawindo ndi ma lens.Nazi mfundo zazikuluzikulu za LiF2 optical crystals:
1. Kuwonekera kwa infrared: LiF2 imawonetsa kuwonetsetsa bwino kwambiri m'dera la infrared, makamaka pakati pa infrared ndi mafunde akutali.Imatha kutumiza kuwala mumtundu wa kutalika kwa pafupifupi 0.15 μm mpaka 7 μm, ndikupangitsa kuti ikhale yoyenera kugwiritsa ntchito mitundu yosiyanasiyana ya infrared.
2. Mayamwidwe otsika: LiF2 imakhala ndi mayamwidwe otsika mu mawonekedwe a infrared, kulola kuchepetsedwa pang'ono kwa kuwala kwa infrared kudzera muzinthuzo.Izi zimatsimikizira kufala kwakukulu ndipo motero kufalikira koyenera kwa ma radiation a infuraredi.
3. Mlozera wapamwamba wa refractive: LiF2 ili ndi chiwerengero chapamwamba cha refractive mu infrared wavelength range.Katunduyu amalola kuwongolera moyenera ndikuwongolera kuwala kwa infrared, kupangitsa kuti ikhale yofunikira pamapangidwe a mandala omwe amafunikira kuyang'ana ndikupindika ma radiation ya infrared.
4. Wide bandgap: LiF2 ili ndi bandgap yotakata pafupifupi 12.6 eV, zomwe zikutanthauza kuti imafunikira mphamvu yayikulu kuti iyambitse kusintha kwamagetsi.Katunduyu amathandizira kuti awonekere kwambiri komanso kuti mayamwidwe ochepa a ultraviolet ndi infrared.
5. Kukhazikika kwa kutentha: LiF2 ili ndi kukhazikika kwabwino kwa kutentha, zomwe zimathandiza kuti zisawonongeke kutentha popanda kuwonongeka kwakukulu kwa ntchito.Izi zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito zomwe zikukhudza kutentha kwambiri, monga makina oyerekeza amafuta kapena masensa a infrared.
6. Kulimbana ndi mankhwala: LiF2 imagonjetsedwa ndi mankhwala ambiri, kuphatikizapo ma acid ndi alkalis.Sichichita kapena kunyozeka mosavuta pamaso pa zinthuzi, kuonetsetsa kuti nthawi yayitali ndi yodalirika ya optics yopangidwa kuchokera ku LiF2.
7. Low birefringence: LiF2 ili ndi birefringence yochepa, zomwe zikutanthauza kuti sizigawanika kuwala m'madera osiyanasiyana a polarization.Katunduyu ndi wofunikira pamapulogalamu omwe amafuna kudziyimira pawokha polarization, monga mu interferometry kapena makina ena owoneka bwino.
Ponseponse, LiF2 imayamikiridwa kwambiri chifukwa chakuchita bwino kwambiri pamawonekedwe a infuraredi, ndikupangitsa kuti ikhale yofunika kwambiri pamawindo ndi magalasi pamitundu yosiyanasiyana ya infuraredi.Kuphatikiza kwake kowonekera kwambiri, kuyamwa pang'ono, bandgap yayikulu, kukhazikika kwamafuta, kukana kwamankhwala, komanso kutsika kwa birefringence kumathandizira pakuchita bwino kwa infrared.
