Granite yog ib qho kev xaiv nrov rau kev tsim cov cuab yeej precision thiab cov cuab yeej siv vim nws qhov siab nruj, qhov ruaj khov, thiab cov khoom siv zoo heev. Nws yog pob zeb uas tsis muaj zog uas muaj ntau yam minerals, xws li quartz, feldspar, thiab mica, teem rau hauv cov qauv crystalline. Txawm li cas los xij, nws cov qauv kuj nthuav tawm qee qhov tsis xws luag uas tuaj yeem cuam tshuam rau kev ua haujlwm ntawm qee yam khoom, xws li optical waveguide positioning devices.
Ib qho ntawm qhov tsis xws luag ntawm granite yog nws qhov porosity. Porosity hais txog qhov muaj qhov khoob, tawg, thiab lwm yam tsis zoo hauv cov khoom, uas tuaj yeem cuam tshuam rau nws cov khoom siv kho qhov muag thiab kho qhov muag. Nyob rau hauv cov ntaub ntawv ntawm optical waveguides, qhov ntxeem tau ntawm granite tuaj yeem ua rau tawg thiab txo qis ntawm lub teeb, uas tuaj yeem txwv kev sib kis thiab kev daws teeb meem ntawm cov cuab yeej. Qhov no kuj tseem tuaj yeem ua rau qhov tsis sib xws ntawm cov khoom siv waveguide, uas tuaj yeem cuam tshuam qhov tseeb ntawm qhov chaw ntsuas qhov tseeb.
Lwm qhov tsis xws ntawm granite yog nws cov anisotropy. Anisotropy yog hais txog cov kev taw qhia dependence ntawm cov khoom siv. Txij li granite yog cov qauv crystalline, nws cov khoom sib txawv raws cov lus qhia sib txawv crystallographic. Piv txwv li, thermal expansion coefficient ntawm granite yog siab dua nyob rau hauv cov kev taw qhia perpendicular mus rau nws lub dav hlau ntawm cleavage tshaj thaum uas tig mus rau nws. Qhov anisotropy no tuaj yeem cuam tshuam qhov tseeb ntawm kev ntsuas thiab qhov chaw ntawm cov kab hluav taws xob kho qhov muag uas tau ua raws li cov lus qhia sib txawv crystallographic. Tsis tas li ntawd, anisotropy kuj txwv qhov yooj yim ntawm kev tsim cov cuab yeej, thiab cov txiaj ntsig ntawm qee txoj kev tsim khoom.
Tsis tas li ntawd, qhov roughness ntawm granite tuaj yeem tsim teeb meem rau qhov kev sib raug zoo thiab kev sib raug zoo ntawm optical waveguides. Txawm hais tias lub siab tawv ntawm granite, nws tuaj yeem nyuaj rau kev ua tiav qhov du thiab tiaj tus. Qhov no tuaj yeem ua rau huab cua tsis sib haum thiab tsis sib xws nrog lub waveguide, uas tuaj yeem cuam tshuam rau kev sib txuas ua haujlwm thiab kev sib dhos precision. Tsis tas li ntawd, qhov roughness ntawm qhov chaw yuav ua rau muaj kev puas tsuaj rau cov npoo waveguide thaum lub sij hawm sib txuas, uas tuaj yeem txo qhov kev ua tau zoo ntawm cov cuab yeej.
Hauv kev xaus, thaum granite nthuav tawm ntau qhov zoo rau kev tsim kho cov cuab yeej precision, xws li optical waveguide positioning devices, muaj ntau yam tsis xws luag uas yuav tsum tau coj mus rau hauv tus account thaum tsim thiab tsim cov khoom siv zoo li no. Cov teeb meem no suav nrog cov porosity, anisotropy, thiab qhov chaw roughness ntawm cov khoom, uas tuaj yeem cuam tshuam rau cov khoom siv kho qhov muag, kho qhov muag, thiab microstructural ntawm lub cuab yeej. Txawm li cas los xij, nrog cov qauv tsim thiab kev tsim khoom tsim nyog, cov teeb meem no tuaj yeem txo qis lossis tswj tau qee yam kom ua tiav qhov kev xav tau thiab qhov tseeb ntawm cov khoom siv kho qhov muag waveguide positioning.
