"Txoj kev tshawb fawb no qhia txog cov qauv tshiab thiab tshwj xeeb tsim thiab ua haujlwm hauv lub hauv paus ntsiab lus rau ultrafast hom-locked lasers. Qhov kev paub ntawm cov tshuab hluav taws xob ultrafast lasers ntawm nyias-film lithium niobate chips yuav nthuav dav lub peev xwm ntawm daim teb no thiab muaj kev cuam tshuam tseem ceeb heev rau photonics thiab lwm yam. teb."
Txoj kev tshawb no, uas tau txais kev qhuas heev los ntawm cov neeg saib xyuas, los ntawm City University of New York thiab California Institute of Technology pab pawg. Lawv tau pom lub ntiaj teb thawj qhov hluav taws xob twj tso kua mis hom-xauv laser nrog siab ncov mem tes fais fab kev koom ua ke ntawm nyias-film lithium niobate optical nti.
Duab
Photo 丨Science tam sim no qhov teeb meem cover
Nyob rau hauv txoj kev tshawb no, cov kws tshawb fawb cleverly fused lub siab laser nce ntawm triple-tsib semiconductor nrog cov zoo heev electro-optical zog ntawm nyias-film lithium niobate los tsim ib tug on-chip hom-xauv laser los ntawm hybrid kev koom ua ke, realizing lub high-power. ultrashort-pulse laser tso zis.
Tshwj xeeb tshaj yog, lub laser tsim ultrashort optical pulses nrog ib tug repetition zaus ntawm 10 GHz thiab ib tug dav ntawm 4.8 picoseconds ntawm ib ncig ntawm 1065 nm, nrog ib tug mem tes zog ntawm ntau tshaj 5 picojoules thiab lub ncov zog ntawm ntau tshaj 0.5 watts. "Txog tam sim no, peb cov khoom siv hluav taws xob laser pulse zog thiab lub zog siab tshaj plaws yog qhov siab tshaj plaws rau hom-xauv lasers hauv qab nanophotonics platform." Qiusi Guo hais.
Duab.
Photo 丨Qiu-Shi Guo
Nrog nws cov zis siab siab siab zog thiab meej zaus tswj lub peev xwm, hom-xauv laser yuav tsum tsim kom muaj ultrafast nonlinear optical system nrog tag nrho on-chip kev koom ua ke, uas yuav ua rau kom paub tseeb ntawm tag nrho frequency-locked optical zaus combs, supercontinuum spectral. Lub teeb qhov chaw thiab atomic moos. Qhov no yuav txhawb kev loj hlob ntawm kev sib txuas lus kho qhov muag, kev kho mob duab, kev ntsuas qhov tseeb, kev suav thiab lwm yam. "Nyob rau hauv lub sij hawm ntev, lub on-chip hom-xauv laser tej zaum yuav muaj irreplaceable daim ntaub ntawv nyob rau hauv lub teb ntawm coherent kev sib txuas lus, precision sij hawm, thiab precision ntsuas." Guo Qiushi hais.
