Attosecond pulses sun bayyana sirrin jinkirin lokaci

bugun Attosecondbayyana sirrin jinkirin lokaci
Masana kimiyya a Amurka, tare da taimakon attosecond pulses, sun bayyana sabbin bayanai game datasirin hoto: dafitar da hasken lantarki ta hanyar amfani da hasken ranaJinkirin ya kai har zuwa daƙiƙa 700, fiye da yadda aka zata a baya. Wannan sabon bincike ya ƙalubalanci samfuran ka'idoji na yanzu kuma yana ba da gudummawa ga fahimtar hulɗar da ke tsakanin electrons, wanda ke haifar da haɓaka fasahohi kamar semiconductors da ƙwayoyin hasken rana.
Tasirin hasken lantarki yana nufin abin da ke faruwa lokacin da haske ya haskaka akan kwayar halitta ko kwayar zarra a saman ƙarfe, hasken yana hulɗa da kwayar halitta ko kwayar zarra kuma yana fitar da electrons. Wannan tasirin ba wai kawai yana ɗaya daga cikin mahimman tushe na makanikan kwantum ba ne, har ma yana da tasiri mai zurfi akan kimiyyar lissafi ta zamani, sinadarai da kimiyyar kayan aiki. Duk da haka, a wannan fanni, abin da ake kira lokacin jinkirta fitar da hasken rana ya kasance batu mai cike da ce-ce-ku-ce, kuma samfuran ka'idoji daban-daban sun bayyana shi zuwa matakai daban-daban, amma babu wata yarjejeniya mai haɗin kai da aka kafa.
Yayin da fannin kimiyyar attosecond ya inganta sosai a cikin 'yan shekarun nan, wannan kayan aiki mai tasowa yana ba da wata hanya mara misaltuwa don bincika duniyar microscopic. Ta hanyar auna abubuwan da ke faruwa daidai akan sikelin lokaci mai ɗan gajeren lokaci, masu bincike suna iya samun ƙarin bayani game da yanayin kuzarin ƙwayoyin cuta. A cikin sabon binciken, sun yi amfani da jerin bugun X-ray mai ƙarfi wanda tushen haske mai haɗin gwiwa ya samar a Cibiyar Stanford Linac (SLAC), wanda ya ɗauki biliyan ɗaya na daƙiƙa ɗaya kawai (attosecond), don yin ionize na ainihin electrons da "fitar" daga cikin ƙwayar da ke motsawa.
Domin ƙarin nazarin yanayin waɗannan electrons da aka saki, sun yi amfani da su daban-daban waɗanda aka yi niyya don haɓaka su.bugun laserdon auna lokutan fitar da electrons ta hanyoyi daban-daban. Wannan hanyar ta ba su damar ƙididdige manyan bambance-bambancen da ke tsakanin lokutan daban-daban da hulɗar da ke tsakanin electrons ta haifar, yana tabbatar da cewa jinkirin zai iya kaiwa daƙiƙa 700. Yana da kyau a lura cewa wannan binciken ba wai kawai yana tabbatar da wasu hasashe na baya ba, har ma yana haifar da sabbin tambayoyi, wanda hakan ke sa a sake duba ka'idoji masu dacewa da kuma sake duba su.
Bugu da ƙari, binciken ya nuna mahimmancin aunawa da fassara waɗannan jinkirin lokaci, waɗanda suke da mahimmanci don fahimtar sakamakon gwaji. A cikin nazarin kristal na furotin, hoton likita, da sauran mahimman aikace-aikace waɗanda suka haɗa da hulɗar X-ray da abu, waɗannan bayanai za su zama muhimmin tushe don inganta hanyoyin fasaha da inganta ingancin hoto. Saboda haka, ƙungiyar tana shirin ci gaba da bincika yanayin lantarki na nau'ikan ƙwayoyin halitta daban-daban don bayyana sabbin bayanai game da halayen lantarki a cikin tsarin da ya fi rikitarwa da alaƙarsu da tsarin ƙwayoyin halitta, tare da shimfida harsashin bayanai mai ƙarfi don haɓaka fasahohin da ke da alaƙa a nan gaba.