Tawagar Laser na Laser Kyauta na Kwalejin Kimiyya ta kasar Sin sun sami ci gaba a cikin bincike na laser na'urar lantarki mai cikakken daidaituwa. Dangane da na'urar Laser na Laser Kyauta mai Soft X-ray na Shanghai, an sami nasarar tabbatar da sabon tsarin echo harmonic cascade free electron Laser da kasar Sin ta gabatar, kuma an sami nasarar tabbatar da ingancin hasken X-ray mai laushi tare da kyakkyawan aiki. Kwanan nan, an buga sakamakon a cikin Optica a ƙarƙashin taken Haɗaɗɗen rahusa da gajeriyar raɗaɗin X-ray mai laushi daga lasar wutar lantarki da ba ta dace da echo-enabled.
Laser electron kyauta na X-ray yana ɗaya daga cikin manyan hanyoyin haske a duniya. A halin yanzu, mafi yawan na duniya X-ray free electron Laser dogara ne a kan kai-amplifying maras lokaci watsi inji (SASE), SASE yana da wani sosai high ganiya haske da femto matakin matsananci-short bugun jini nisa da sauran kyau kwarai yi, amma SASE vibration da amo, da daidaituwa da kwanciyar hankali ta radiation bugun jini ba high, ba "X-ray band". Ɗaya daga cikin mahimman kwatancen ci gaba a fagen laser na laser kyauta na duniya shine samar da cikakkiyar hasken X-ray tare da ingancin laser na al'ada, kuma hanya mai mahimmanci ita ce amfani da na'urar sarrafa Laser kyauta na iri na waje. Radiation na waje iri free electron Laser gaji halaye na iri Laser, kuma yana da kyawawan halaye kamar cikakken daidaituwa, lokaci iko da daidai aiki tare da waje famfo Laser. Koyaya, saboda ƙayyadaddun tsayin tsayi da bugun bugun jini na Laser iri, gajeriyar ɗaukar hoto da tsayin bugun bugun jini na Laser ɗin waje na kyauta kyauta yana iyakance. Domin ƙara faɗaɗa ɗan gajeren zangon ɗaukar hoto na waje iri na laser kyauta na lantarki, sabbin nau'ikan Laser na laser kyauta na aiki kamar echo harmonic ƙarni ana haɓaka da ƙarfi a duniya cikin 'yan shekarun nan.
Laser free iri na waje na ɗaya daga cikin manyan hanyoyin fasaha don haɓaka babbar riba ta Laser ɗin lantarki kyauta a China. A halin yanzu, duk manyan na'urorin Laser na'urar lantarki guda huɗu masu girma a China sun karɓi yanayin aikin iri na waje. Bisa ga Shanghai Deep Ultraviolet Free Electron Laser Facility da Shanghai Soft X-ray Free Electron Laser Facility, masana kimiyya sun samu nasarar cimma na farko na kasa da kasa echo irin free electron Laser haske karawa da farko matsananci ultraviolet echo irin free electron Laser jikewa karawa. Domin kara inganta fitar waje iri free electron Laser zuwa ga gajeren wavelength, da bincike tawagar da kansa ba da shawarar wani sabon inji na cikakken m electron Laser tare da echo jituwa cascade, wanda Shanghai Soft X-ray Free electron Laser na'urar a matsayin tushen makirci, da kuma kammala dukan tsari daga manufa tabbaci zuwa haske ƙarawa a cikin taushi X-ray band. Sakamakon bincike ya nuna cewa idan aka kwatanta da na gargajiya irin na waje iri Gudun inji, wannan inji yana da matukar kyau kwarai bakan halaye, ta hanyar tallafi na masu bincike na masu zaman kansu ci gaban ultrafast X-ray bugun jini fasahar ganewar asali (https://doi.org/10.1016/j.fmre.2022.01.027), The m aikin na wannan sabon inji a cikin pulse tsawon sarrafa bugun jini ya kara tabbatar da bugun jini. Sakamakon binciken da ya dace yana ba da hanyar fasaha mai yuwuwa don samar da cikakken ingantattun lasers na lantarki kyauta a cikin rukunin subnanometer, kuma za su samar da ingantaccen kayan aikin bincike don filayen na'urorin gani marasa kan layi na X-ray da ultrafast na sinadarai na zahiri.
Echo harmonic cascade free electron Laser yana da kyakkyawan aiki na ban mamaki: hoton hagu shine yanayin cascade na al'ada, kuma hoton dama shine yanayin echo jituwa cascade.
X-ray bugun jini tsawon daidaitawa da ultrafast bugun jini tsara za a iya gane ta echo harmonic cascade.
Lokacin aikawa: Oktoba-08-2023