ʻO ka aniani Silicon (lens Si) no nā noi Infrared

ʻO ka aniani silicon he aniani optical i hana ʻia me ka silicon. ʻO Silicon (Si) kahi mea crystalline i hoʻohana pinepine ʻia i nā ʻōnaehana optical infrared e hana ana ma ka band spectral 3 a 5µm. ʻO kona index refractive kokoke i 3.4 ma waena o ka laulā. He haʻahaʻa kona densities ma waena o nā mea infrared maʻamau, ʻo ia wale nō ka hapalua o Ge, GaAs a me ZnSe. No laila, ʻo ka mea silicon ke koho kūpono no ka ʻōnaehana me nā hopohopo kaumaha. ʻOi aku ka paʻakikī o Silicon a ʻoi aku ka liʻiliʻi o ke kumukūʻai ma mua o ka hapa nui o nā mea infrared maʻamau, e hoʻemi ana i ke kumukūʻai o nā mea a hoʻonui i ke kumukūʻai hana i ka manawa like.

He kūpono loa ke Silicon no ka noi MWIR akā ma muli o ka omo ikaika ma luna o 6 micron, ʻaʻole kūpono ia no ka noi LWIR. Hiki ke hoʻohana ʻia ma ke ʻano he substrate aniani no ka noi laser ma muli o kona conductivity thermal, māmā, a me ka paʻakikī.

ʻInfrared ka lōʻihi o ka naluhiki ke hana i nā ʻano like ʻole o ka lens silicon menā ʻili ākea, concave, convex, aspheric a me nā ʻili diffractive.ʻO Silicon ka mea kaulana loa no nā ʻōnaehana e hana ana ma ka ʻāpana spectral 3-5µm, me nā uhi anti-reflective (AR coating), hiki ke hoʻonui ʻia ka hoʻoili awelika a hiki i ka 98%. Hiki iā mākou ke hoʻopili i ka uhi kalapona daimana-like (DLC coating) a i ʻole ka uhi paʻa kiʻekiʻe (HD coating) ma ka ʻili o ka lens e hāʻawi i ka pale hou aku e kūʻē i ka ʻōpala a me ka hopena.

ʻInfrared ka lōʻihi o ka naluhana i nā aniani silicon spherical a me aspheric maʻamau. Hiki iā lākou ke kālele a hoʻokaʻawale paha i ke kukuna kukui e hiki mai ana e hoʻokō i nā koi kikoʻī o ka ʻōnaehana infrared.