Paub meej: Infrared thermal imaging technology yog dav siv nyob rau hauv teb xws li tshuaj, kev tshawb fawb, thiab tub rog; Txawm li cas los xij, cov txheej txheem ib txwm siv rau kev hloov pauv thermal hluav taws xob feem ntau tsom rau infrared camouflage thiab tawm tsam kom ua tau raws li qhov yuav tsum tau ua rau thermal imaging li. Tsis ntev los no, ib pab neeg los ntawm Central South University tau tshaj tawm cov kev tshawb fawb tshawb fawb hauv * Suav Optics Letters * qhia txog kev tsim cov iav nrog cov qauv porous nanowire siv femtosecond laser scanning technology. Qhov kev tsim kho tshiab no ua tiav cov khoom siv infrared emissivity thiab thermal radiation kev ua tau zoo, ua kom cov duab infrared kom pom tseeb dua qhov tseeb qhov kub thiab txias. Huari Laser muab kev pab txhawb nqa, nrog rau nws qhov siab -kev ua tau zoo femtosecond lasers ua lub luag haujlwm tseem ceeb hauv kev ua tiav ntawm qhov kev sim- yog li ua kom pom qhov kev ntseeg tau thiab muaj peev xwm ntawm cov cuab yeej siv hluav taws xob hauv tsev nyob hauv thaj tsam ntawm siab - xaus kev tshawb fawb.
Lub hauv paus ntsiab lus tseem ceeb: Laser "engraving" ntawm micro/nano- cov qauv los hloov cov yam ntxwv thermal tawg
Hauv kev sim, femtosecond laser scanning tau siv los tsim cov nanopores sib npaug (200-500 nm inch) thiab cov qauv nanowire ntawm lub iav nto. Cov micro/nano-cov qauv no txhawb nqa lub teeb pom kev zoo thiab infrared emissivity thaum txo cov teeb pom kev zoo; Qhov no muab lub iav superior thermal tawg peev xwm, yog li txhim kho qhov tseeb ntawm infrared thermal imaging.
Daim duab 1: (a) Schematic ntawm ib leeg -ib sab laser ablation ntawm iav thiab cov qauv kho qhov muag ua ntej thiab tom qab kho; (b) 3D morphology thiab cross-sectional siab profile ntawm iav tom qab kho laser.
Daim duab 2: (a) Absorptance thiab transmittance hla ntau wavelength sib txawv; (b) Emissivity thiab reflectance nyob rau hauv sib txawv wavelength ranges; qhov inset hauv (a) qhia pom cov duab kho qhov muag ntawm cov iav qauv ua ntej thiab tom qab kho laser.
Cov ntaub ntawv tseem ceeb: Kev txhim kho kev ua tau zoo ntawm ib sab
Pom Lub Teeb Pom Kev: Tom qab ua haujlwm laser, lub iav nthuav tawm 8% -16.4% nce ntxiv hauv kev nqus thiab txo qhov xa mus rau 16% -51%, nrog rau kev txhim kho tseem ceeb hauv kev cuam tshuam.
Infrared Range: Infrared emissivity tau nce ntau, ua rau muaj peev xwm hluav taws xob hluav taws xob uas nyob deb tshaj cov iav tsis kho.
Kev Ntsuas Kev Ntsuas: Kev ntsuam xyuas tau ua nyob rau hauv 150℃cua sov ib puag ncig thiab ntawm tib neeg cov tawv nqaij pom tau hais tias qhov ntsuas kub infrared ntawm cov iav kho tau zoo sib xws, nrog qhov sib txawv ntawm qhov kub ntawm kwv yees li 2℃me dua li cov iav tsis kho.
Kev sim teeb tsa: Femtosecond Laser ua tus tsav tsheb
Qhov kev sim siv lub siab -repetition-rate femtosecond laser system los ntawm Huari Laser. Los ntawm kev siv galvanometer scanning thiab F-Theta lo ntsiab muag tsom-thiab tswj cov laser lub zog, scan nrawm, thiab qhov sib nrug- pab pawg tau ua tiav kev ua haujlwm zoo thiab sib xws ntawm micro- thiab nano- cov qauv ntawm cov iav nto.
Kev ua tiav ntawm qhov kev sim no vam khom rau siab -femtosecond laser technology muab los ntawm Huari Laser. Huari Laser's femtosecond lasers muab cov txiaj ntsig tseem ceeb uas ua rau lawv nyiam xaiv rau ob qho tib si kev tshawb fawb thiab kev lag luam siv:
1. Precise Parameter Control: Cov tsis tseem ceeb xws li zaus thiab mem tes dav tuaj yeem hloov kho kom haum raws li kev ua haujlwm ntawm ntau yam khoom siv; qhov tshwj xeeb configuration siv nyob rau hauv qhov kev sim no zoo kawg nkaus haum rau fabricating micro- thiab nano{2}} qauv ntawm iav.
2. Kev ua haujlwm ruaj khov: ruaj khov tso zis zog thiab siab scanning precision xyuas kom cov uniformity thiab repeatability ntawm micro- thiab nano{2}} cov qauv, muab kev lav zoo rau kev ntseeg siab ntawm cov ntaub ntawv sim.
3. Kev siv dav dav: Tshaj li kev tsim cov khoom siv rau infrared thermal imaging, cov lasers no tuaj yeem siv rau hauv thaj chaw xws li micro/nano-machining, cov ntaub ntawv hloov kho, thiab optoelectronic ntaus ntawv tsim, txhawb pab pawg tshawb fawb los tshawb nrhiav cov lus qhia tshiab ntxiv.
