Laser yochita bwino kwambiri yofanana ndi chala

Kuchita kwapamwambalaser yachangu kwambirikukula kwa nsonga ya chala

Malinga ndi nkhani yatsopano yofalitsidwa m'magazini ya Science, ofufuza a City University of New York asonyeza njira yatsopano yopangira ntchito zapamwamba.ultrafast laserspa nanophotonics. Izi miniaturized mode-zokhomalaserimatulutsa kuwala kwapang'onopang'ono kwafupikitsa kogwirizana kwapakati pa femtosecond (matrilioni a sekondi).

Ultrafast mode-zokhomalaserszingathandize kuvumbula zinsinsi za nthawi zofulumira kwambiri za chilengedwe, monga kupangika kapena kuthyoka kwa mamolekyu a mamolekyu panthawi ya zochita za mankhwala, kapena kufalikira kwa kuwala m’mawu osokonekera. Kuthamanga kwambiri, kuthamanga kwambiri, komanso kufalikira kwa ma laser mode-Locked kumathandiziranso matekinoloje ambiri a Photon, kuphatikiza mawotchi a atomiki, kujambula kwachilengedwe, ndi makompyuta omwe amagwiritsa ntchito kuwala kuwerengera ndi kukonza deta.

Koma ma lasers apamwamba kwambiri okhoma akadali okwera mtengo kwambiri, makina apakompyuta ofunikira mphamvu omwe amangogwiritsidwa ntchito mu labotale. Cholinga cha kafukufuku watsopano ndikusintha izi kukhala kachipangizo kakang'ono kakang'ono kamene kakhoza kupangidwa mochuluka ndikuyikidwa m'munda. Ofufuzawa adagwiritsa ntchito nsanja yamtundu wa lithium niobate (TFLN) yomwe ikubwera kuti ipangike bwino ndikuwongolera bwino ma pulses a laser pogwiritsa ntchito ma radio frequency akunja ma sign amagetsi kwa iyo. Gululi linaphatikiza kupindula kwakukulu kwa laser kwa ma semiconductors a gulu la III-V ndi luso lopanga ma pulse la TFLN nanoscale photonic waveguides kuti apange laser yotulutsa mphamvu yapamwamba kwambiri ya 0.5 watts.

Kuphatikiza pa kukula kwake kophatikizika, komwe ndi kukula kwa nsonga ya chala, laser yomwe yangowonetsedwa kumene imawonetsanso zinthu zingapo zomwe ma laser achikhalidwe sangathe kuzikwaniritsa, monga kutha kuwongolera bwino kubwereza kwa kugunda kwamphamvu pamagetsi. osiyanasiyana 200 megahertz kungosintha mpope panopa. Gululi likuyembekeza kuti lipeza gwero la chip-scale, lokhazikika pafupipafupi kudzera mukusinthanso kwamphamvu kwa laser, komwe ndikofunikira kwambiri pakuzindikira bwino. Ntchito zothandiza zimaphatikizapo kugwiritsa ntchito mafoni a m'manja kuti azindikire matenda a maso, kapena kusanthula E. coli ndi mavairasi owopsa m'zakudya ndi chilengedwe, ndikuthandizira kuyenda pamene GPS yawonongeka kapena palibe.