Umhlaba onqabileyo wongeza umbala kunye nokukhazimla kwiimveliso zombane

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.

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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