Kuita kwepamusoroultrafast lasersaizi yemunwe
Sekureva kwechinyorwa chitsva chakavharwa chakaburitswa mujenari Sainzi, vaongorori paCity University yeNew York vakaratidza nzira nyowani yekugadzira kuita kwepamusoro.Ultrafast laserspa nanophotonics. Iyi miniaturized mode-yakakiiwalaserinoburitsa nhevedzano yeakanyanya-pfupi akabatana mapurusi echiedza panguva yefemtosecond (trillionths yesekondi).
Ultrafast mode-yakavharwalasersinogona kubatsira kuvhura zvakavanzika zvezviyero zvenguva zvinokurumidza zvechisikigo, sekugadzira kana kuputswa kwemamolecular bond panguva yekuchinja kwemakemikari, kana kupararira kwechiedza mumhepo ine mhirizhonga. Iyo yekumhanya-mhanya, peak pulse intensity, uye yakafara spectrum kufukidzwa kwemamodhi-akakiyiwa lasers zvakare inogonesa akawanda mafoton matekinoroji, anosanganisira optical atomic wachi, biological imaging, uye makomputa anoshandisa chiedza kuverenga uye kugadzirisa data.
Asi iyo yakanyanya kukwirisa mode-yakakiyiwa lasers ichiri kudhura zvakanyanya, simba-inoda desktop masisitimu ayo anogumira kukushandisa marabhoritari. Chinangwa chetsvagurudzo itsva ndechekushandura iyi kuita chip-sized system inogona kugadzirwa-zhinji uye kuiswa mumunda. Vatsvagiri vakashandisa yakaonda-firimu lithium niobate (TFLN) inobuda zvinhu chikuva kuti inyatso kuumba uye kunyatso kudzora laser pulses nekushandisa ekunze redhiyo frequency magetsi masaini kwairi. Chikwata chakabatanidza iyo yakakwira laser kuwana yekirasi III-V semiconductors ine inoshanda pulse kuumba kugona kweTFLN nanoscale photonic waveguides kugadzira laser inoburitsa yakakwira yekubuda simba repamusoro re0.5 watts.
Pamusoro pehukuru hwayo compact, inova saizi yemunwe, iyo ichangobva kuratidzwa mode-yakiyiwa laser inoratidzawo huwandu hwezvivakwa izvo zvechinyakare lasers hazvigone kuwana, sekugona kunyatso dzokorora chiyero cheinobuda pulse pamusoro pe hupamhi hwe200 megahertz nekungogadzirisa pombi ikozvino. Chikwata chinotarisira kuwana chip-scale, frequency-yakagadzikana comb sosi kuburikidza nelaser ine simba reconfiguration, iyo yakakosha pakunyatso kunzwa. Zvishandiso zvinoshanda zvinosanganisira kushandiswa kwenharembozha kuongorora zvirwere zvemaziso, kana kuongorora E. coli nemavhairasi ane ngozi muchikafu nenharaunda, uye kuita kuti kufamba kugone kana GPS yakuvadzwa kana kuti isipo.
Nguva yekutumira: Jan-30-2024