Kweminye imimandla eselunxwemeni, ngenxa yokungqubeka kweplankton yeBioluminescence kumaza, ulwandle ebusuku ngamanye amaxesha lukhupha ukukhanya kweTeal.Iintsimbi zomhlaba ezinqabileyoikwakhupha ukukhanya xa ivuselelwe, yongeza umbala kunye nokukhazimla kwiimveliso zombane. Iqhinga, utsho u-de Bettencourt Dias, kukunyumbaza ii-electron zabo.
Ukusebenzisa imithombo yamandla efana nelases okanye izibane, izazinzulu kunye neenjineli zinokukhupha i-elektroni e-f kumhlaba onqabileyo ukuya kwimo echulumancisayo kwaye emva koko iyibuyisele kwimeko yokungalali, okanye imo yomhlaba wayo. “Xa iLanthanide ibuyela kwindawo ephantsi, ikhupha ukukhanya,” utshilo
UDe Bettencourt Dias uthe: Uhlobo ngalunye lomhlaba onqabileyo lukhupha ngokuthembekileyo ubude obuchanekileyo bokukhanya xa imincili. Oku kuchaneka kunokuthenjwa kuvumela iinjineli ukuba zihlengahlengise ngononophelo imitha ye-electromagnetic kwiimveliso ezininzi zombane. Umzekelo, i-luminescence wavelength ye-terbium imalunga ne-545 nanometers, eyenza ilungele ukwakha iiphosphors eziluhlaza kwiTV, ikhompyuter, kunye nezikrini ze-smartphone. I-Europium ineendlela ezimbini eziqhelekileyo kwaye isetyenziselwa ukwakha i-phosphors ebomvu neblue. Ngamafutshane, ezi phosphors zinokusetyenziswa kwizikrini Uninzi lwemibala yomnyama izotywe kwiscreen.
Umhlaba onqabileyo nawo unokukhupha ukukhanya okuluncedo okungabonakaliyo. I-Yttrium yinxalenye ephambili ye-Yttrium aluminium garnet okanye i-YAG. I-YAG yikristale yokwenziwa, eyenza undoqo weelases ezininzi ezinamandla aphezulu. Iinjineli zihlengahlengisa ubude bezi lasers ngokongeza enye into enqabileyo yomhlaba kwikristale ye-YAG. Olona didi ludumileyo yi-neodymium doped YAG laser, esetyenziselwa iinjongo ezahlukeneyo ukusuka ekusikeni intsimbi ukuya ekususeni iitattoos ukuya kwi-laser. Imiqadi ye-laser ye-Erbium YAG lukhetho olulungileyo lwenkqubo yokuhlasela kancinane, kuba ifunxwa ngokulula ngamanzi emzimbeni, ngoko ke ayiyi kusikwa nzulu kakhulu.
Ukongeza kwii-laser,lanthanumibalulekile ekwenzeni iiglasi ezifunxa i-infrared kwiindondo zokubona ebusuku. Injineli yeemolekyuli u-Tian Zhong ovela kwiYunivesithi yaseChicago uthe, "I-Erbium iqhuba i-intanethi yethu. Uninzi lolwazi lwethu lwedijithali luhamba ngeefibers ze-optical ngendlela yokukhanya kunye nobude be-waveleng malunga ne-1550 nanometers - ubude obufanayo ne-erbium ephumayo. Iimpawu kwifiber iintambo zamehlo ziba mnyama kude nomthombo wazo Ngenxa yokuba ezi ntambo zombane zinokwandisa amawaka eekhilomitha kumhlaba wolwandle, i-erbium yongezwa kwiintsinga ukuze kwandiswe umqondiso.
Ixesha lokuposa: Jul-03-2023