Chikwata cheMahara erekitironi Laser cheChinese Academy yeSainzi chafambira mberi mukutsvagisa kwemarekitironi emahara emahara lasers. Zvichienderana neShanghai Soft X-ray Yemahara Electron Laser Facility, iyo nyowani nyowani echo harmonic cascade yemahara erekitironi laser yakatsanangurwa neChina yakasimbiswa zvakabudirira, uye yakapfava X-ray inobatana mwaranzi ine mashandiro akanaka yawanikwa. Munguva pfupi yapfuura, Mhedzisiro yakaburitswa muOptica pasi pezita rekuti Coherent uye Ultra-pfupi yakapfava X-ray pulses kubva echo-enabled harmonic cascade yemahara maelectron lasers.
Iyo X-ray yemahara erekitironi laser ndiyo imwe yemhando yepamusoro mwenje masosi munyika. Parizvino, mazhinji epasi rose eX-ray emahara erekitironi lasers akavakirwa pane inozvisimudzira yega yega emission mechanism (SASE), SASE ine yakanyanya kupenya kupenya uye femto nhanho yekupedzisira-pfupi pulse hupamhi uye kumwe kuita kwakanakisa, asi SASE vibration neruzha, kubatana uye kugadzikana kweiyo radiation pulse haina kukwirira, haisi iyo Xlaser bandi. Imwe yeanonyanya kukosha nzira dzekusimudzira mumunda wepasi rose emahara erekitironi laser kugadzira yakanyatsoenderana X-ray mwaranzi neyakajairwa laser mhando, uye yakakosha nzira ndeye kushandisa yekunze mbeu yemahara erekitironi laser inoshanda mashandiro. Mwaranzi yemhodzi yekunze yemahara erekitironi laser inogara nhaka hunhu hwembeu laser, uye ine hunhu hwakanakisa sekubatana kwakazara, kudzora kwechikamu uye kunyatso wiriranisa neyekunze pombi laser. Nekudaro, nekuda kwekuganhurwa kwewavelength uye pulse upamhi hwembeu laser, iyo pfupi wavelength kufukidzwa uye pulse kureba kugadziridzwa kweyekunze yembeu yemahara erekitironi laser inogumira. Kuti uwedzere kuwedzera kupfupika kwewavelength yekunze kwembeu yemahara erekitironi laser, mitsva yemahara erekitironi laser inoshanda modhi senge echo harmonic chizvarwa chiri kuvandudzwa pasirese mumakore achangopfuura.
Mbeu dzekunze dzemahara erekitironi laser ndiyo imwe yenzira huru dzehunyanzvi yekuvandudza kuwana yakakwira yemahara erekitironi laser muChina. Parizvino, ese mana akakwira anowana emahara erekitironi laser zvishandiso muChina atora ekunze mbeu yekushanda maitiro. Zvichienderana neShanghai Deep Ultraviolet Yemahara erekitironi Laser Facility uye Shanghai Soft X-ray Yemahara Electron Laser Facility, masayendisiti akawana zvakatevedzana ekutanga echo mhando yemahara erekitironi laser mwenje weamplification uye yekutanga yakanyanyisa ultraviolet echo mhando yemahara erekitironi laser saturation amplification. Kuti tienderere mberi nekusimudzira yekunze mbeu yemahara erekitironi laser kune ipfupi wavelength, timu yekutsvagisa yakazvimiririra nzira nyowani yemahara erekitironi laser ine echo harmonic cascade, iyo yakagamuchirwa neShanghai Soft X-ray Yemahara erekitironi Laser mudziyo sechirongwa chekutanga, uye yakapedzisa hurongwa hwese kubva pamusimboti kusimbiswa kusvika pakureruka mubhendi rakapfava X-ray. Mhedzisiro yetsvagiridzo inoratidza kuti kana ichienzaniswa neyekunze yemhando yemhando yembeu inomhanyisa michina, iyi nzira ine yakanakisa spectral hunhu, kuburikidza nekutorwa kwevaongorori veyakazvimiririra budiriro ye Ultrafast X-ray pulse diagnostic tekinoroji (https://doi.org/10.1016/j.fmre.2022.01.027), Kuita kwepamusoro kweiyi nyowani yehurefu hwehurefu uye pulse pulse mechanism. Mhedzisiro yakafanira yekutsvagisa inopa inogoneka tekinoroji nzira yekugadzira yakanyatsoenderana emahara erekitironi lasers mu subnanometer bhendi, uye ichapa yakanakira yekutsvagisa chishandiso kuminda yeX-ray nonlinear optics uye Ultrafast yemuviri chemistry.
Iyo echo harmonic cascade yemahara erekitironi laser ine yakanakisa spectral performance: iyo yekuruboshwe ndiyo yakajairika cascade modhi, uye iyo yekurudyi ndiyo echo harmonic cascade mode.
X-ray pulse kureba kugadziridzwa uye ultrafast pulse chizvarwa inogona kuitika ne echo harmonic cascade.
Nguva yekutumira: Oct-08-2023