Ci gaban da aka samu kwanan nan a fannin samar da laser da kuma sabon binciken laser

Ci gaban da aka samu kwanan nan a fannin samar da laser da sabbin fasahohibinciken laser
Kwanan nan, ƙungiyar masu bincike ta Farfesa Zhang Huaijin da Farfesa Yu Haohai na Babban Dakin Gwaji na Kayan Crystal na Jami'ar Shandong da Farfesa Chen Yanfeng da Farfesa He Cheng na Babban Dakin Gwaji na Babban Dakin Gwaji na Jiha na Kimiyyar Jiki ta Jami'ar Nanjing sun yi aiki tare don magance matsalar kuma sun gabatar da tsarin samar da laser na famfon haɗin gwiwa na phoon-phonon, kuma sun ɗauki kristal laser na gargajiya na Nd:YVO4 a matsayin abin da ke wakiltar binciken. Ana samun fitowar laser mai inganci ta hanyar karya iyakar matakin makamashin electron, kuma an bayyana alaƙar jiki tsakanin matakin samar da laser da zafin jiki (lambar phonon tana da alaƙa sosai), kuma siffar bayyanar iri ɗaya ce da dokar Curie. An buga binciken a cikin Nature Communications (doi:10.1038/ S41467-023-433959-9) a ƙarƙashin sunan "Laser ɗin da aka haɗa da Photon-phonon". Yu Fu da Fei Liang, ɗalibin digirin digirgir na aji na 2020, Jami'ar Jihar Maɓallin Kayan Crystal, Jami'ar Shandong, su ne marubuta na farko, Cheng He, Jami'ar Jihar Maɓallin Kayan Kimiyyar Jiki Mai Sauƙi, Jami'ar Nanjing, ita ce marubuci na biyu, sannan Farfesa Yu Haohai da Huaijin Zhang, Jami'ar Shandong, da Yanfeng Chen, Jami'ar Nanjing, marubuta ne masu alaƙa.
Tun lokacin da Einstein ya gabatar da ka'idar hasken da aka ƙarfafa a ƙarni na ƙarshe, an ƙirƙiri tsarin laser gaba ɗaya, kuma a cikin 1960, Maiman ya ƙirƙiri laser na farko mai ƙarfi wanda aka yi amfani da shi ta hanyar amfani da hasken rana. A lokacin samar da laser, shakatawar zafi muhimmin abu ne na zahiri wanda ke tare da samar da laser, wanda ke shafar aikin laser da ƙarfin laser da ake da shi. Ana ɗaukar shakatawar zafi da tasirin zafi a matsayin manyan sigogin jiki masu cutarwa a cikin aikin laser, wanda dole ne a rage shi ta hanyar fasahar canja wurin zafi da sanyaya daban-daban. Saboda haka, tarihin ci gaban laser ana ɗaukarsa a matsayin tarihin gwagwarmayar zafi da sharar gida.

Bayani na ka'idar Laser famfo na hadin gwiwa na photon-phonon

Ƙungiyar binciken ta daɗe tana gudanar da bincike kan kayan gani na laser da waɗanda ba layi ba, kuma a cikin 'yan shekarun nan, an fahimci tsarin shakatawa na zafi sosai daga mahangar kimiyyar yanayin ƙarfi. Dangane da ra'ayin asali cewa zafi (zafin jiki) yana cikin ƙananan phonon, ana ɗaukarsa a matsayin cewa shakatawa na zafi kanta tsari ne na kwantum na haɗin electron-phonon, wanda zai iya aiwatar da daidaita matakan makamashin electron ta hanyar ƙirar laser mai dacewa, da kuma samun sabbin hanyoyin canzawa na electron don samar da sabbin tsawon rai.laserDangane da wannan tunani, an gabatar da sabuwar ƙa'ida ta samar da laser mai haɗin gwiwa na electron-phonon, kuma an samo ƙa'idar sauyawar electron a ƙarƙashin haɗin electron-phonon ta hanyar ɗaukar Nd:YVO4, wani lu'ulu'u na laser na asali, a matsayin abin wakilci. A lokaci guda, an gina laser mai haɗin gwiwa na photon-phonon wanda ba a sanyaya ba, wanda ke amfani da fasahar famfon diode na laser na gargajiya. An tsara Laser mai tsawon rai mai ƙarancin tsayi 1168nm da 1176nm. Dangane da wannan, bisa ga ƙa'idar samar da laser da haɗin electron-phonon, an gano cewa samfurin matakin samar da laser da zafin jiki iri ɗaya ne, wanda yake daidai da bayyanar dokar Curie a cikin maganadisu, kuma yana nuna ƙa'idar zahiri ta asali a cikin tsarin canjin yanayi mara tsari.

Gwajin aiwatar da haɗin gwiwar photon-phononLaser famfo

Wannan aikin yana ba da sabon hangen nesa don bincike na zamani kan hanyoyin samar da laser,kimiyyar laser, da kuma babban ƙarfin laser, suna nuna sabon yanayin ƙira don fasahar faɗaɗa tsawon laser da binciken lu'ulu'u na laser, kuma yana iya kawo sabbin ra'ayoyin bincike don haɓakana'urorin gani na kwantum, maganin laser, nunin laser da sauran fannoni masu alaƙa da aikace-aikacen.