Sehlopha sa Free electron Laser sa Sekolo sa Mahlale sa China se hatetse pele lipatlisisong tsa lilaser tsa elektronike tsa mahala tse momahaneng ka botlalo. Ho ipapisitsoe le Shanghai Soft X-ray Free Electron Laser Facility, mochine o mocha oa echo harmonic cascade free electron laser laser e hlahisitsoeng ke China e netefalitsoe ka katleho, 'me mahlaseli a bonolo a X-ray a sebetsang hantle haholo a fumanoe. Haufinyane tjena, liphetho li phatlalalitsoe ho Optica tlasa sehlooho se reng Coherent and Ultra-short soft soft pulses from echo-enabled harmonic cascade free electron lasers.
X-ray free electron laser laser ke o mong oa mehloli ea leseli e tsoetseng pele ka ho fetisisa lefatšeng. Hajoale, boholo ba li-laser tsa elektronike tse sa lefelloeng tsa X-ray li ipapisitse le mochini o itlhahisang o ikemetseng (SASE), SASE e na le khanya e phahameng haholo le bophara ba femto e khuts'oane le ts'ebetso e 'ngoe e ntle haholo, empa SASE vibration. ka lerata, momahano le botsitso ba mahlaseli a eona a mahlaseli ha a phahame, hase sehlopha sa X-ray "laser". E 'ngoe ea litsela tsa bohlokoa ka ho fetisisa tsa nts'etsopele lefapheng la laser ea mahala ea elektronike ea machaba ke ho hlahisa mahlaseli a X-ray a lumellanang ka ho feletseng ka boleng bo tloaelehileng ba laser, 'me tsela ea bohlokoa ke ho sebelisa mochine o sebetsang ka ntle oa electron laser laser. Mahlaseli a laser ea elektronike e sa lefelloeng ea peo a rua litšoaneleho tsa laser ea peo, 'me a na le litšobotsi tse babatsehang tse kang momahano e feletseng, taolo ea mohato le ho lumellana ho nepahetseng le laser pompo ea ka ntle. Leha ho le joalo, ka lebaka la khaello ea bolelele ba maqhubu le bophara ba pulse ea laser ea peo, tšireletso e khuts'oane ea leqhubu le mefuta e fapaneng ea tokiso ea bolelele ba pulse ea kantle ea peo ea kantle ea laser ea elektronike e lekanyelitsoe. E le ho tsoela pele ho atolosa tšireletso e khutšoanyane ea maqhubu a laser ea elektronike e sa lefelloeng peo, mekhoa e mecha ea ho sebetsa ea electron laser e kang echo harmonic generation e ntse e ntlafatsoa ka matla lefatšeng lilemong tsa morao tjena.
Laser ea elektronike ea mahala ea peo ke e 'ngoe ea litsela tsa mantlha tsa tekheniki ea ho nts'etsapele phaello e phahameng ea laser ea elektronike naheng ea China. Hajoale, lisebelisoa tsohle tse 'ne tse phahameng tsa elektronike tsa laser tsa China li amohetse mokhoa oa ts'ebetso ea peo ea kantle. Ho ipapisitsoe le Shanghai Deep Ultraviolet Free electron Laser Facility le Shanghai Soft X-ray Free Electron Laser Facility, bo-rasaense ba atlehile ka ho latellana ba fihletse amplification ea pele ea machaba ea echo ea mofuta oa echo ea mahala ea elektronike le mofuta oa pele o matla oa ultraviolet echo mofuta oa mahala oa electron laser saturation amplification. E le ho ntšetsa pele ho ntšetsa pele laser ea elektronike e sa lefelloeng ea peo ho ea boleleleng bo bokhutšoane ba leqhubu, sehlopha sa lipatlisiso se khothalelitse ka boikemelo mokhoa o mocha oa laser ea elektronike e sa lefelloeng e nang le echo harmonic cascade, e ileng ea amoheloa ke sesebelisoa sa Shanghai Soft X-ray Free electron Laser e le morero oa motheo, 'me o phethetse ts'ebetso eohle ho tloha ho netefatso ea molao-motheo ho isa ho matlafatso ea khanya ka har'a sehlopha se bonolo sa X-ray. Liphetho tsa lipatlisiso li bonts'a hore ha ho bapisoa le mokhoa o tloaelehileng oa ho tsamaisa peo ea kantle, mochini ona o na le litšobotsi tse ntle haholo tsa pono, ka ho amoheloa ha bafuputsi ba nts'etsopele e ikemetseng ea theknoloji ea X-ray pulse diagnosis (https://doi.org/10.1016) /j.fmre.2022.01.027), Ts'ebetso e phahameng ea mochini ona o mocha oa taolo ea bolelele ba pulse le ultrafast pulse generation e netefatsoa ka ho eketsehileng. Liphetho tse amehang tsa lipatlisiso li fana ka tsela e ka khonehang ea tekheniki bakeng sa ho hlahisa li-laser tsa mahala tsa elektronike tse momahaneng ka botlalo sehlopheng sa subnanometer, 'me li tla fana ka sesebelisoa se loketseng sa ho etsa lipatlisiso masimong a X-ray nonlinear optics le chemistry ea 'mele e potlakileng.
Echo harmonic cascade mahala electron laser e na le ts'ebetso e ntle haholo ea pono: setšoantšo se letšehali ke mokhoa o tloaelehileng oa cascade, 'me setšoantšo se nepahetseng ke mokhoa oa echo harmonic cascade.
Tokiso ea bolelele ba X-ray pulse le ultrafast pulse generation e ka bonoa ka echo harmonic cascade.
Nako ea poso: Oct-08-2023