Dahaarka indhaha

Dahaarka indhaha

Dahaarka indhaha waa lakab khafiif ah ama lakabyo walxo ah oo lagu kaydiyo curiyaha indhaha, sida muraayada ama muraayada, taas oo wax ka beddesha habka curiyaha indhaha u milicsado oo u gudbiyo iftiinka.Mid ka mid ah dahaarka indhaha waa daahan ka-hortagga milicsiga, kaas oo yareynaya milicsiga aan loo baahnayn ee dusha sare, oo badanaa loo isticmaalo muraayadaha indhaha iyo muraayadaha kamaradaha.Nooc kale ayaa ah dahaar aad u muuqda, kaas oo loo isticmaali karo in lagu soo saaro muraayado ka tarjumaya in ka badan 99.99% iftiinka.Dahaarno indho-indhayn oo aad u adag oo muujinaya milicsi sare ee hirarka dhererka qaarkood iyo ka-hortagga milicsiga ee kala duwanaanshaha dheer ayaa u oggolaanaya soo saarista filtarrada dhuuban ee dichroic.

Nooca Dahaarka

Milicsiga vs. Qalooca Wavelong ee Dhacdooyinka Caadiga ah ee Aluminium (Al), Silver (Ag), iyo Dahab (Au) Muraayadaha Birta

Dahaarka ugu fudud ee indhaha waa lakabyo bir ah oo dhuuban, sida aluminium, kuwaas oo lagu shubo substrate galaas si ay u sameeyaan dusha muraayadda, habka loo yaqaan silvering.Birta la isticmaalo ayaa go'aamisa sifooyinka muraayadda;aluminiumku waa kan ugu raqiisan uguna caansan, oo soo saara qiyaastii 88%-92% milicsiga muuqaalka muuqda.Kharashka qaaliga ah waa qalin, kaas oo leh 95%-99% milicsiga xitaa infrared fog, laakiin wuxuu hoos u dhigay milicsiga (<90%) ee gobollada buluugga iyo ultraviolet.Ka ugu qaalisan waa dahab, kaas oo buuxa infrared.Waxay bixisaa milicsi aad u fiican (98%-99%), laakiin milicsiga xaddidan ee hirarka dhererka ka yar 550 nm, taasoo keentay midab dahabi ah oo gaar ah.

Iyadoo la xakameynayo dhumucda iyo cufnaanta daahan birta ah, milicsiga waa la dhimi karaa oo kor u qaadista gudbinta dusha sare, taasoo keentay muraayad nus lacag ah.Kuwaas waxaa mararka qaarkood loo isticmaalaa sidii "muraayadaha hal-jid ah".

Nooca kale ee ugu weyn ee daahan indhaha waa daahan dielectric ah (taas oo ah, isticmaalka alaabta leh index refractive kala duwan sida substrate).Waxay ka kooban yihiin lakabyo khafiif ah, sida magnesium fluoride, kalsiyum fluoride, iyo oksaydhyada birta ee kala duwan, kuwaas oo lagu shubo substrate-ka indhaha.Adigoo si taxadar leh u dooranaya halabuurka saxda ah, dhumucda iyo tirada lakabyadan, milicsiga iyo gudbinta dahaarka ayaa la hagaajin karaa si loo soo saaro hanti kasta oo la rabo.Isku-dheellitirnaanta milicsiga ee dusha sare ayaa lagu dhimi karaa ka hooseeya 0.2%, taasoo keentay daahan ka-hortagga (AR).Taas bedelkeeda, dahaarka-milicsiga sare (HR), milicsiga waxaa lagu kordhin karaa in ka badan 99.99%.Heerka milicsiga ayaa sidoo kale lagu hagaajin karaa qiimo gaar ah, tusaale ahaan, si loo soo saaro muraayad ka tarjumaysa 90% qiyaasaha hirarka dhererka qaarkood oo gudbiya 10% iftiinka ku dul dhaca.Muraayadaha noocan oo kale ah ayaa caadi ahaan loo isticmaalaa sidii lamaanayaasha wax soo saarka ee kala qaybinta alwaaxyada iyo leysarka.Haddii kale, dahaarka waxaa loo qaabayn karaa si muraayaddu u muujiso oo kaliya xadhig cidhiidhi ah oo dhererka dhererka, abuurista shaandhada indhaha.

Kala duwanaanshaha dahaarka dielectric ayaa keentay in loo isticmaalo qalab badan oo saynis ah sida lasers, microscopes indhaha, telescopes refractor, interferometers, iyo sidoo kale qalabka macaamiisha sida binoculars, muraayadaha indhaha, iyo lenses sawir.

Lakabyada Dielectric ayaa mararka qaarkood lagu dabaqaa aflaanta birta ah si ay u bixiyaan lakab ilaalin ah (sida silicon dioxide ee aluminium), ama si loo kordhiyo milicsiga filimka birta ah.Isku-dhafka birta iyo dielectric ayaa sidoo kale loo isticmaalaa si loo abuuro dahaar sare oo aan si kale loo soo saari karin.Tusaale ahaan waxa loogu yeero "muraayada qumman", kaas oo muujiya milicsi sare (laakiin aan qummanayn) oo leh dareen aan caadi ahayn oo hooseeya xagga hirarka dhererka, xagasha, iyo kala soocida.