1.Yintoni emxinwa isihluzo sebhendi?

Izihluzizizixhobo ze-optical ezisetyenziselwa ukukhetha i-radiation band efunekayo. Izihluzi ze-Narrow band luhlobo lwe-bandpass filter ezivumela ukukhanya kuluhlu oluthile lwamaza ukuba ludluliselwe ngokukhanya okuphezulu, ngelixa ukukhanya kwezinye ii-wavelength ranges kuza kutsalwa okanye kuboniswe, ngaloo ndlela kufezekiswa isiphumo sokucoca.

Ibhendi yokugqitha yezihluzi zebhendi emxinwa incinci kakhulu, ngokubanzi ingaphantsi kwe-5% yexabiso le-wavelength ephakathi, kwaye ingasetyenziswa kakhulu kwiinkalo ezahlukeneyo, ezifana neenkwenkwezi, i-biomedicine, ukubeka esweni okusingqongileyo, unxibelelwano, njl.

2.Umsebenzi we-mxinwa izihluzi zebhendi

Umsebenzi wesihluzi sebhendi emxinwa kukubonelela ngokukhetha ubude be-wavelength kwinkqubo ye-optical, ikakhulu kwezi nkalo zilandelayo:

(1)Ukucoca ukukhanya okukhethiweyo

Ibhendi emxinwaizihluziinokucoca ngokukhetha ukukhanya kwiindidi ezithile zamaza okukhanya kwaye igcine ukukhanya kwiindidi ezithile zamaza okukhanya. Oku kubalulekile kwizicelo ezifuna ukwahlula phakathi kwemithombo yokukhanya yeendidi ezahlukeneyo zamaza okukhanya okanye ezifuna imithombo yokukhanya yeendidi ezithile zamaza okukhanya kwiimvavanyo okanye ukujonga.

(2)Nciphisa ingxolo yokukhanya

Izihluzi zebhanti ezimfutshane zinokuvala ukukhanya kwiindidi zamaza angadingekileyo, zinciphise ukukhanya okungaqhelekanga okuvela kwimithombo yokukhanya okanye ukuphazamiseka kokukhanya okungasemva, kwaye ziphucule umahluko kunye nokucaca komfanekiso.

Izihluzi zebhendi ezimxinwa

(3)Uhlalutyo lweSpectral

Izihluzi zebhendi ezimxinwa zingasetyenziselwa uhlalutyo lwe-spectral. Ukudibanisa izihluzi zebhendi ezimxinwa ezininzi kungasetyenziselwa ukukhetha ukukhanya kwamaza athile kunye nokwenza uhlalutyo oluchanekileyo lwe-spectral.

(4)Ulawulo lokukhanya okunamandla

Izihluzi zebhendi ezinqamlezileyo zingasetyenziselwa ukulungisa amandla okukhanya komthombo wokukhanya, ukulawula amandla okukhanya ngokudlulisa okanye ukuvala ukukhanya kwamaza athile okukhanya.

3.Umgaqo wesihluzi sebhendi emxinwa

Ibhendi emxinwaizihluziSebenzisa i-interference phenomenon yokukhanya ukuze ukhethe ukudlulisa okanye ukubonakalisa ukukhanya kuluhlu oluthile lwamaza. Umgaqo wayo usekelwe kwiimpawu zokuphazamiseka kunye nokufunxwa kokukhanya.

Ngokulungisa umahluko wesigaba kwisakhiwo sokudibanisa iileya zefilimu ezibhityileyo, kuphela ukukhanya okukuluhlu lwamaza obubanzi ekujoliswe kuwo okudluliselwa ngokukhethayo, kwaye ukukhanya kwamanye amaza obubanzi kuyavalwa okanye kubonakale.

Ngokukodwa, izihluzi zebhendi ezimxinwa zihlala zibekwe ngeeleya ezininzi zeefilimu, kwaye isalathisi sokuqaqamba kunye nobukhulu beleya nganye yefilimu zilungiswa ngokweemfuno zoyilo.

Ngokulawula ubukhulu kunye nesalathisi sokukhanyela phakathi kweengqimba zefilimu ezibhityileyo, umahluko wesigaba sokukhanya unokulungiswa ukuze kufezekiswe iziphumo zokuphazamiseka kuluhlu oluthile lwamaza.

Xa ukukhanya kwesiganeko kudlula kwisihluzo sebhendi esincinci, uninzi lokukhanya luya kubonakaliswa okanye lufunxwe, kwaye kuphela ukukhanya okukwinqanaba elithile lobude be-wavelength kuya kudluliselwa. Oku kungenxa yokuba kwisakhiwo se-stacking small film layer ye-isihluzo, ukukhanya kobude be-wavelength ethile kuya kuvelisa umahluko wesigaba, kwaye isiganeko sokuphazamiseka siya kubangela ukuba ukukhanya kobude be-wavelength ethile kuphuculwe, ngelixa ukukhanya kwamanye ama-wavelength kuya kurhoxiswa kwesigaba kwaye kubonakale okanye kufakwe.