Izindaba zakamuva zocwaningo lwe-i-laser yokuxhumana kwesikhala
Uhlelo lwe-inthanethi yesathelayithi, olunembozo yomhlaba wonke, ukubambezeleka okuphansi kanye nomkhawulokudonsa ophezulu, seluyisiqondiso esiyinhloko sokuthuthukiswa kobuchwepheshe bokuxhumana esikhathini esizayo. Ukuxhumana nge-laser yasemkhathini ubuchwepheshe obuyinhloko ekuthuthukisweni kohlelo lokuxhumana lwesathelayithi.I-laser ye-semiconductorikhombisa amandla okusebenza abanzi ohlelweni lokuxhumana nge-laser yasemkhathini ngenxa yokusebenza kwayo kahle kakhulu, impilo ende, usayizi omncane, isisindo esilula kanye nezici ezinhle kakhulu zokuguquguquka. Kodwa-ke, imisebe yelanga ye-cosmic, imisebe ye-galactic cosmic kanye nenani elikhulu lezinhlayiya ezishaja amandla aphezulu njenge-proton, ama-electron kanye nama-ion asindayo ebhande lokubamba i-geomagnetic endaweni yesikhala kungaholela ekuwohlokeni kokusebenza kwedivayisi futhi kuholele nasekuhlulekeni kwedivayisi, okusongela kakhulu ukuthembeka nokuzinza kwezinhlelo zokuxhumana nge-laser yasemkhathini.
ISITHOMBE 1. Idivayisi yokuhlola yei-laserukuhlolwa kokusebenza
Muva nje, ithimba locwaningo eShayina lenze intuthuko ebalulekile ocwaningweni lokusebenza kwama-laser e-quantum dot ebhendini lokuxhumana lesikhala. Ngokuklanywa kwebhendi okusha kanye nokwenza ngcono isakhiwo sesifunda esisebenzayo, ithimba lithuthukise ngempumelelo imiphumela yakamuva yocwaningo lwama-laser okuxhumana kwesikhala, anokusebenza okuhle kakhulu endaweni yezinhlayiya ezinamandla aphezulu, ama-laser e-quantum dot. Benza ukuhlaziywa okujulile kokuqhathanisa kokusebenza kwezinhlelo ezahlukene zezinto endaweni yesikhala. Imiphumela yokuhlola ikhombisa ukuthi isakhiwo se-quantum dot sibonisa izinzuzo ezimangalisayo zokuzinza kwesakhiwo endaweni yezinhlayiya ezinamandla aphezulu e-orbit ephansi yoMhlaba.
Ngokusekelwe kulokhu okutholiwe, ithimba labacwaningi liphumelele ukuklama nokwakha uhlobo olusha lwe-i-laser yamachashazi e-quantum. Idivayisi ikhombisa ukusebenza okuhle kakhulu ezindaweni ezibucayi: ekujovweni kwe-proton ye-3MeV kufika ku-7×1013 cm-2, i-laser igcina isici sokukhulisa ububanzi bomugqa esiseduze no-zero; Umsindo ophakathi wokuqina kwesilinganiso (i-RIN) wedivayisi uphansi njengo--163 dB/Hz, ngisho noma umthamo womjovo uphezulu, i-RIN iyanda ngo-1 dB/Hz kuphela. Ngaphezu kwalokho, i-laser isasebenza ngokuzinzile ngaphansi kwesimo sokukhanya okunamandla esingu--3.1dB. Le mpumelelo ayigcini nje ngokuqinisekisa imiphumela yakamuva yocwaningo lwama-laser okuxhumana kwesikhala, kodwa futhi ihlinzeka ngokuthembekaisixazululo somthombo wokukhanyaukwakhiwa kwamanethiwekhi okuxhumana ngesathelayithi asebenza kahle kakhulu.
Isikhathi sokuthunyelwe: Ephreli-01-2025