LiF substrate
wehewehe
Loaʻa i ka LiF2 optical crystal ka hana IR maikaʻi loa no nā puka makani a me nā lens.
Waiwai
| ʻO ka mānoanoa（g/cm3） | 2.64 |
| Lae hehee (℃) | 845 |
| ʻO ka hoʻoili wela | 11.3 Wm-1K-1 ma 314K |
| Hoʻonui wela | 37 x 10-6 / ℃ |
| Paʻakiki (Mho) | 113 me 600g indenter (kg/mm2) |
| Kaha Wela Kūikawā | 1562 J/(kg.k) |
| Dielectric mau | 9.0 ma 100 Hz |
| 'Ōpio Modulus (E) | 64.79 GPa |
| Modulus Shear (G) | 55.14 GPa |
| Modulus Nui (K) | 62.03 GPa |
| ʻAhaʻi Modulus | 10.8 MPa |
| Koepika lohi | C11=112;C12=45.6;C44=63.2 |
LiF Substrate Wehewehe
LiF (lithium fluoride) substrates e pili ana i nā mea i hoʻohana ʻia ma ke ʻano he kumu a i ʻole ke kākoʻo ʻana no nā kaʻina hana hoʻopaʻa kiʻi ʻoniʻoni lahilahi ma ka ʻoihana optics, photonics a me microelectronics.ʻO ka LiF kahi aniani aniani a hoʻokaʻawale loa me kahi bandgap ākea.
Hoʻohana maʻamau ʻia nā substrate LiF i nā noi kiʻiʻoniʻoni lahilahi ma muli o ko lākou ʻike maikaʻi loa i ka ʻāpana ultraviolet (UV) a me ke kūpaʻa kiʻekiʻe i ka wela a me nā hopena kemika.He kūpono loa ia no nā noi e like me ka uhi ʻana i ka optical, ka deposition kiʻiʻoniʻoni lahilahi, spectroscopy a me ka microscopy electron.
Ua koho pinepine ʻia nā substrate LiF ma ke ʻano he substrate no ka mea he haʻahaʻa ko lākou komo ʻana i ka laulā UV a maʻalahi hoʻi no nā ana kūpono a pololei.Eia hou, hōʻike ʻo LiF i ke kūpaʻa maikaʻi ma nā wela kiʻekiʻe a hiki ke kū i nā ʻenehana deposition he nui e like me ka evaporation thermal, sputtering, a me ka molecular beam epitaxy.
ʻO nā waiwai o nā substrates LiF e kūpono loa iā lākou no nā noi i nā optics UV, lithography, a me X-ray crystallography.ʻO ko lākou kūpaʻa kiʻekiʻe i nā kumu kaiapuni a me ke kūpaʻa kemika e lilo lākou i mea maʻalahi no nā noiʻi like ʻole a me nā noi ʻoihana.
Nā Huahana Pili
ʻIke nui ʻia ʻo LiF (lithium fluoride) no kāna mau waiwai infrared (IR) maikaʻi loa ma ke ʻano he mea optical no nā puka makani a me nā lens.Eia kekahi mau mea nui e pili ana i nā kristal optical LiF2:
1. ʻO kaʻikeʻike infrared: Hōʻike ka LiF2 i kaʻikeʻike maikaʻi loa ma ka'āpana infrared,ʻo ia hoʻi ma ka waena-infrared a me ka lōʻihi-infrared lōʻihi.Hiki iā ia ke hoʻouna i ka mālamalama i ka laulā nalu ma kahi o 0.15 μm a hiki i 7 μm, kūpono ia no nā ʻano noi infrared.
2. Haʻahaʻa absorption: LiF2 he haʻahaʻa absorption i loko o ka infrared spectrum, e ʻae ana i ka attenuation liʻiliʻi o ke kukui infrared ma o ka mea.Mālama kēia i ka hoʻouna kiʻekiʻe a pēlā e hoʻouna maikaʻi ai i ka radiation infrared.
3. Kiʻekiʻe refractive index: LiF2 he kiʻekiʻe refractive index i loko o ka infrared hawewe lōʻihi.Hāʻawi kēia waiwai i ka mana kūpono a me ka hoʻopololei ʻana i ke kukui infrared, e lilo ia i mea waiwai no nā hoʻolālā lens e pono ai ke kālele ʻana a me ke kūlou ʻana i ka radiation infrared.
4. ʻAha Bandgap: Loaʻa i ka LiF2 kahi bandgap ākea ma kahi o 12.6 eV, ʻo ia ka mea e koi ai i kahi hoʻokomo ikehu kiʻekiʻe e hoʻomaka i nā hoʻololi uila.Hāʻawi kēia waiwai i kona ʻike kiʻekiʻe a me ka haʻahaʻa haʻahaʻa i ka ultraviolet a me nā ʻāpana infrared.
5. Paʻa wela: LiF2 maikaʻi ka wela wela, hiki iā ia ke kū i nā wela kiʻekiʻe me ka ʻole o ka hoʻohaʻahaʻa hana.He kūpono kēia no nā noi e pili ana i ka ʻike ʻana i nā wela kiʻekiʻe, e like me nā ʻōnaehana kiʻi wela a i ʻole nā mea ʻike infrared.
6. Ke kū'ē kemika: He kū'ē ka LiF2 i nā kinikona he nui, me nā waikawa a me nā alkali.ʻAʻole ia e pane a hoʻohaʻahaʻa maʻalahi i mua o kēia mau mea, e hōʻoia ana i ka lōʻihi o ka lōʻihi a me ka hilinaʻi o nā optics i hana ʻia mai LiF2.
7. Haʻahaʻa birefringence: LiF2 he haʻahaʻa birefringence, ʻo ia hoʻi, ʻaʻole ia e hoʻokaʻawale i ka mālamalama i nā mokuʻāina polarization like ʻole.He mea koʻikoʻi kēia waiwai i nā noi e koi ana i ke kūʻokoʻa polarization, e like me ka interferometry a i ʻole nā ʻōnaehana optical precision.
Ma keʻano holoʻokoʻa, mahalo nui ʻia ʻo LiF2 no kāna hana maikaʻi loa i ka spectrum infrared, e lilo ia i mea waiwai no nā puka makani a me nā lens i nā ʻano noi infrared.ʻO ka hui pū ʻana o ke aniani kiʻekiʻe, ka haʻahaʻa haʻahaʻa, ka bandgap ākea, ke kūpaʻa wela, ke kūpaʻa kemika, a me ka birefringence haʻahaʻa e kōkua i kāna hana infrared maikaʻi loa.
