Lub laser tsav tsheb txiav txim siab qhov txwv sab saud ntawmattosecond laserlub teeb ci.
Tam sim no,attosecond pulse lasersfeem ntau yog tsim los ntawm kev tsim cov harmonic siab (HHG) uas tsav los ntawm cov teb muaj zog. Lub ntsiab lus ntawm lawv txoj kev tsim hluav taws xob tuaj yeem nkag siab tias yog cov electrons raug ionized, ua kom nrawm dua, thiab rov sib koom ua ke los tso tawm lub zog, yog li ntawd tso tawm attosecond XUV pulses.
Yog li ntawd, qhov tso zis ntawm attosecond pulses yog qhov rhiab heev rau qhov dav ntawm lub zog, lub zog, wavelength, thiab qhov rov ua dua ntawm lub laser tsav tsheb: qhov dav ntawm lub zog luv dua yog qhov zoo rau kev cais cov attosecond pulses, lub zog siab dua txhim kho ionization thiab kev ua haujlwm zoo, qhov ntev dua ntawm lub zog txiav tawm tab sis txo qhov kev hloov pauv zoo, thiab qhov rov ua dua ntau dua txhim kho qhov sib piv ntawm lub teeb liab-rau-suab nrov tab sis raug txwv los ntawm lub zog ib leeg.
Cov ntawv thov sib txawv tsom mus rau ntau yam cim tseem ceeb ntawm attosecond lasers, yog li sib raug rau cov kev xaiv tsim ntawm ntau hom kev tsav tshebcov chaw laser.
Rau cov ntawv thov xws li kev tshawb fawb txog ultrafast dynamics thiab electron microscopy, kev cais tawm ruaj khov ntawm attosecond pulses (IAP) feem ntau xav tau cov pulses tsav luv luv thiab kev tswj hwm zoo ntawm lub hnab ntawv (CEP) kom ua tiav lub sijhawm gating thiab waveform controllability;
Rau cov kev sim xws li pump-probe spectroscopy thiab multi-photon ionization, high-energy lossis high-flux attosecond radiation pab txhim kho kev ua haujlwm excitation/absorption, uas feem ntau ua tiav nyob rau hauv lub zog tsav tsheb siab dua thiab qhov nruab nrab zog siab dua los ntawm HHG, thiab yuav tsum tau tswj hwm qhov sib phim theem thiab beam zoo nyob rau hauv cov xwm txheej ionization siab;
Txhawm rau tsim cov hluav taws xob attosecond hauv lub qhov rais X-ray (uas muaj txiaj ntsig zoo rau kev kos duab sib xws thiab lub sijhawm daws teeb meem X-ray nqus spectroscopy), kev tsav tsheb nruab nrab-infrared ntev-wavelength feem ntau yog siv los ua kom lub zog txiav harmonic nce thiab tau txais kev pab them nqi zog photon siab dua;
Hauv kev ntsuas uas rhiab heev rau qhov tseeb ntawm kev suav lej, xws li kev suav thiab photoelectron spectroscopy, cov zaus rov ua dua siab dua tuaj yeem txhim kho qhov sib piv ntawm lub teeb liab thiab suab nrov thiab kev ua haujlwm tau cov ntaub ntawv zoo dua, thaum lub zog them ib zaug qis dua pab txo qhov kev txwv ntawm cov teebmeem ntawm qhov chaw them rau kev daws teeb meem ntawm lub zog spectrum.
Qhov kev sib raug zoo ntawm cov kev tsav tsheb laser parameters, attosecond pulse laser cov yam ntxwv, thiab cov kev cai ntawm daim ntawv thov tau qhia nyob rau hauv Daim Duab 1. Zuag qhia tag nrho, qhov kev thov ntawm daim ntawv thov txuas ntxiv tsav tsheb ntxiv kev txhim kho ntawm attosecond pulse laser parameters, thiab yog li tsav tsheb txuas ntxiv kev txhim kho ntawm cov qauv thiab cov thev naus laus zis tseem ceeb ntawmlaser ceev heevcov txheej txheem.
Lub sijhawm tshaj tawm: Lub Peb Hlis-03-2026