Xakamaynta cadaadiska galaaska waa isku xidh aad muhiim u ah habka wax soo saarka galaaska, habka loo mariyo daaweynta kulaylka ku habboon si loo xakameeyo walbahaarkana waxaa si fiican u yaqaanay farsamoyaqaannada galaaska. Si kastaba ha ahaatee, sida saxda ah loo cabbiro cadaadiska galaaska ayaa weli ah mid ka mid ah dhibaatooyinka adag ee jahawareeriya inta badan soosaarayaasha galaaska iyo farsamoyaqaannada, qiyaasta dhaqameed ee la taaban karo ayaa noqotay mid aad ugu habboon shuruudaha tayada ee alaabada galaaska ee bulshada maanta. Maqaalkani wuxuu si faahfaahsan u soo bandhigayaa hababka cabbirka walbahaarka ee caadiga ah ee loo isticmaalo, isagoo rajeynaya inuu noqdo mid waxtar leh oo iftiiminaya warshadaha galaaska:
1. Aasaaska aragtida ee ogaanshaha walbahaarka:
1.1 Iftiinka Polarized
Waa la ogyahay in iftiinku yahay hirar elektromagnetic ah oo gariira jihada u jeedda jihada hore, kuna gariira dhammaan meelaha gariirka leh ee ku toosan jihada hore. Haddii la soo bandhigo shaandhada kala-goysyada oo u oggolaanaysa jihada gariirka gaar ah inay dhex marto waddada iftiinka, iftiin kala-goys ah ayaa la heli karaa, oo loo yaqaan iftiin kala-goys ah, qalabka indhaha ee loo sameeyay iyadoo loo eegayo astaamaha indhahana waa kala-goys (polarizer).Daawade Cadaadis ah oo ka muuqda Polariscope).Daawadaha Cadaadiska Polariscope ee YYPL03
1.2 Birefringence
Muraayadda waa isotropic waxayna leedahay isla tusmada refractive-ka jiho kasta. Haddii uu jiro cadaadis galaaska ku jira, sifooyinka isotropic-ka way burburaan, taasoo keenta in tusmada refractive-ka ay isbeddesho, tusmada refractive-ka ee labada jiho ee cadaadiska ugu muhiimsanna ma aha mid isku mid ah, taas oo ah, inay keento birefringence.
1.3 Farqiga wadada indhaha
Marka iftiinka kala-go'an uu dhex maro galaas dhumucdiisu tahay t, vector-ka iftiinku wuxuu u qaybsamaa laba qaybood oo gariira jihooyinka cadaadiska x iyo y, siday u kala horreeyaan. Haddii vx iyo vy ay yihiin xawaaraha labada qaybood ee vector-ka siday u kala horreeyaan, markaa waqtiga loo baahan yahay in lagu dhex maro galaaska waa t/vx iyo t/vy siday u kala horreeyaan, labada qayboodna mar dambe lama wada shaqayn, markaa waxaa jira farqi waddo oo indhaha ah δ.
Waqtiga boostada: Agoosto-31-2023