Inkqubo yomthombo wokukhanya wamapolisa enamaqela amaninzi
Isakhiwo esisisiseko kunye nomgaqo womthombo wokukhanya we-multi-band
Umthombo wokukhanya we-multi-band yinkqubo yokukhanya eyohlula ukukhanya okumhlophe okukhutshwa ngumthombo wokukhanya kwiibhanti ezahlukeneyo ngeseti enye okanye ezimbini zohluzo lombala, kwaye emva koko ikhuphe isikhokelo sokukhanya.Ikakhulu iqulathe amacandelo amahlanu: umthombo wokukhanya, inkqubo yokucoca, inkqubo yokuphuma, inkqubo yokubonisa ulawulo, kunye nekhabhinethi.(Jonga uMfanekiso 1 malunga nesakhiwo).Phakathi kwazo, umthombo wokukhanya, inkqubo yokucoca, kunye nenkqubo yokuphuma zizinto eziphambili zomthombo wokukhanya we-multi-band, omisela ukusebenza komthombo wokukhanya.Umthombo wokukhanya ngokubanzi wamkela isibane se-xenon, ukukhanya kwe-indium okanye ezinye izibane zentsimbi ze-halide ezinokukhanya okuphezulu okuphezulu.Inkqubo yokucoca ibhekisa ikakhulu kwisihluzo sombala, kukho izihluzo zombala eziqhelekileyo ezigqunyiweyo okanye izihluzo ezikumgangatho ophakamileyo webhendi yokuphazamiseka kombala.Ukusebenza kokugqibela kungcono kakhulu kunokokuqala, eyona nto inciphisa i-bandwidth ye-cut-off yokukhanya kombala, oko kukuthi, i-monochromaticity yokukhanya kombala iphuculwe kakhulu.Imveliso eqhelekileyo ye-wavelength coverage yi-350 ~ 1000nm, kubandakanywa uninzi lwemigca ye-spectral kwi-ultraviolet-wave-long-wave, ukukhanya okubonakalayo kunye nemimandla ekufutshane ne-infrared.
Umgaqo wokusetyenziswa komthombo wokukhanya we-multi-band
1. I-Fluorescence kunye nemithombo yokukhanya ye-multi-band
Xa ii-electron ze-extranuclear zinemincili kwaye zitsibela kwimo echulumancisayo, ii-electron ezikwimeko echulumancisayo azinzanga kwaye zisoloko zitsibela kumhlaba ophantsi ngamandla aphantsi.Ngethuba lokutsiba, amandla afunyenweyo aya kukhutshwa ngendlela yeefotoni..Isenzeko sokuba into ibe nemincili ukuya kwimo echulumancisayo emva kokukhanyiswa yifoton yobude obuthile, ize emva koko itsibe ibuyele kwinqanaba elisezantsi lamandla ngokukhupha ifotoni yomnye ubude bobude obuthile.
Ibizwa ngokuba yi-photoluminescence phenomenon, kwaye ixesha lokuphila kwe-photon lidla ngokukhutshwa lingaphantsi kwe-0.000001 yesibini, ebizwa ngokuba yi-fluorescence;phakathi kwe-0.0001 kunye ne-0.1 yesibini, ibizwa ngokuba yi-phosphorescence.Ukuba into inokuzihlaziya kwaye ivelise i-fluorescence ngaphandle kokuvuselela ukukhanya kwangaphandle, kuthiwa into ine-intrinsic fluorescence.Enye imeko ye-fluorescence kukuvelisa amaza okukhanya anobude obuhlukeneyo ukusuka kumaza okukhanya okuqala (ngokuqhelekileyo i-excitations yamaza amafutshane ukuvelisa amaza amade) phantsi kovuselelo lomthombo wokukhanya wangaphandle, kunye nokubonakaliswa kwe-macroscopic kukhupha enye ukukhanya kombala.Umthombo wokukhanya we-multi-band awunokubonelela kuphela ngomthombo wokukhanya ophambeneyo ukujonga i-intrinsic fluorescence, kodwa kunye nomthombo wokukhanya ovuselelayo.
2. Umgaqo wokwahlula umbala
Umgaqo wokwahlula umbala uyimfuneko yokhetho oluchanekileyo lwebhendi ye-wavelength (ukukhanya kombala) kunye nesihluzo sombala womthombo wokukhanya we-multi-band.kuthetha ukuba ngokukhetha izithunzi.
Izihluzi zeForensic Multiband Source Light
| Inkqubo | (IAD iNgqungquthela) |
| ISubstrate | I-Pyrex, i-silicon edibeneyo |
| FWHM | 30±5nm |
| CWL(nm) | 365, 415, 450, 470, 490, 505, CSS510, 530, 555, 570, 590, 610 |
| T avg. | >80% |
| Ukuthambeka | 50%～OD5 < 10nm |
| Ukuthintela | OD=5-6@200-800nm |
| Ubungakanani(mm) | Φ15, Φ21.2, Φ25, Φ55, njl. |
Iinkqubo zeMveliso
