Feem ntauIR Laser Modulesmuaj ntau yam kev siv, thiab kev tiv thaiv kev nyab xeeb yog xav tau thaum siv infrared lasers kom tsis txhob raug mob.
Cov hauv qab no qhia txog 808nm 1064nm 1550nm laser infrared laser band ua haujlwm cov ntaub ntawv thiab lawv cov ntawv thov:

1. Common Infrared Laser Source

Lub hauv paus muaj pes tsawg leeg ntawm lub laser tuaj yeem muab faib ua peb ntu, qhov chaw twj tso kua mis (muab lub zog, kom cov haujlwm ua haujlwm kom paub txog tus lej ntawm cov khoom inversion); Cov teeb meem ua haujlwm (nrog rau cov qauv tsim hluav taws xob tsim nyog, uas tuaj yeem paub qhov thim rov qab ntawm tus lej ntawm cov khoom nyob rau hauv qhov kev txiav txim ntawm lub zog siv, electrons los ntawm lub zog siab mus rau tso tawm lub zog hauv daim ntawv ntawm photons), resonant kab noj hniav.

Ntawm lawv, cov khoom ntawm cov khoom ua haujlwm txiav txim siab raws nraim li cas wavelength ntawm laser tuaj yeem tawm.

Lub ntsiab ntawm 808nmIR Laser Modulesyog ib tug semiconductor laser. Band sib txawv zog ntawm semiconductors txiav txim lub wavelength ntawm LD emission, yog li 808nm yog ib qho ntawm cov kev khiav hauj lwm wavelengths ntau. 808nm kuj yog ib hom semiconductor laser uas tau pib ua ntej thiab kawm tob dua. Nws qhov chaw hauv cheeb tsam suav nrog cov khoom siv txhuas (xws li InAlGaAs) thiab cov khoom tsis muaj txhuas (xws li GaAsP). Hom laser no muaj qhov zoo ntawm tus nqi qis, kev ua haujlwm siab, thiab lub neej ua haujlwm ntev.

808nm DPSS Lasers

Tau kawg, tam sim no kuj tseem muaj cov khoom siv hluav taws xob ncaj qha raws li lub twj tso kua mis ntawm lwm cov khoom siv hluav taws xob laser vim tias kev siv lub sij hawm semiconductor laser ntau dua li lub teeb twj tso kua mis, thiab vim tias semiconductor laser kab dav yog nqaim heev, tsuas yog coincides. Nrog rau kev nqus bandwidth ntawm solid-state laser, yog li cov efficiency siab heev.

1064nm kuj yog ib qho classical wavelength ntawm solid-state laser. Cov khoom siv ua haujlwm yog neodymium (Nd) doped YAG (Yttrium aluminium garnet, Y3Al5O12) siv lead ua. Aluminium ions hauv YAG siv lead ua tuaj yeem ua haujlwm ntawm Nd-doped cations los tsim cov qauv tsim qauv thiab cov qauv band. Nd cations zoo siab thiab nyob rau hauv ib qho kev zoo siab, uas ua rau muaj kev hloov pauv hauv hluav taws xob thiab laser. Nd: YAG siv lead ua muaj kev ruaj ntseg zoo thiab ua haujlwm ntev. Lwm cov khoom siv hauv xeev lasers siv neodymium-doped yttrium vanadate crystals raws li cov ntaub ntawv ua haujlwm yog tsim rau LD siv nrog lub laser wavelength ntawm 1064nm.

1064nm DPSS Lasers

1550nm laser kuj tuaj yeem pom tau los ntawm ib lub laser semiconductor, feem ntau siv cov khoom siv semiconductor suav nrog InGaAsP, InGaAsN, thiab hauv GaAlAs.

2. Siv & Daim ntawv thov teb

Infrared band muaj ntau yam kev siv, xws li kev sib txuas lus kho qhov muag, kev kho mob, biomedical imaging, laser ua, thiab lwm yam. Hauv kev sib txuas lus kho qhov muag, piv txwv li, quartz fiber tam sim no siv hauv kev sib txuas lus kho qhov muag. Txhawm rau ua kom lub teeb nqa cov ntaub ntawv ntev ntev yam tsis muaj kev poob, peb yuav tsum xav txog qhov wavelengths ntawm lub teeb zoo dua xa mus rau hauv optical fiber. Nyob rau hauv qhov ze-infrared band, qhov poob ntawm cov quartz fiber ntau txo nrog qhov nce ntawm wavelength tshwj tsis yog rau lub ncov impurity absorption. Muaj peb lub wavelengths ntawm "Windows" nrog tsawg poob ntawm 0.85μm, 1.31μm, thiab 1.55μm. Lub emission wavelength ntawm lub teeb qhov chaw laser thiab lub wavelength teb ntawm lub photodiode ntawm lub photodetector yuav tsum tau raws li peb wavelength qhov rais ntawm lub optical fiber. Tshwj xeeb, nyob rau hauv kev kuaj mob, qhov poob ntawm 1.55μm tau mus txog 0.1419db / km, uas yog ze rau qhov kev txwv ntawm quartz fiber ntau poob.

Lub teeb nyob rau hauv cov qhab no tuaj yeem nkag mus rau cov ntaub so ntswg lom thiab muaj qee yam kev siv hauv kev kho mob photothermal, thiab lwm yam. Piv txwv li, Yue et al. siv cyanine ze-infrared dye IR780 los tsim heparin-folic acid tsom hloov nanoparticles, nws qhov siab tshaj plaws nqus wavelength yog li 780 nm thiab emission nyob ntawm 807 nm. Qhov kub nce ntawm 23 degree mus rau 42 degree tom qab 2 min irradiation nrog laser (808 nm laser, 0.6 W / cm2 zog ceev) ntawm 10 mg / mL. Folate receptor zoo MCF-7 cov nas qog qog tau muab tshuaj ntawm koob tshuaj 1.4 mg / kg, thiab cov qog nqaij hlav tau irradiated nrog 808 nm laser rau 5 min (0.8 W / cm2), thiab cov qog nqaij hlav tseem ceeb tau pom nyob rau hauv hnub tom qab.

Muaj lwm yam kev siv, xws li infrared lidar, tam sim no 905 nm band huab cua cuam tshuam muaj peev xwm tsis muaj zog, qhov nkag los ntawm nag thiab pos huab tsis txaus, 1.5xμm laser hluav taws xob nyob rau hauv 1.5 ~ 1.8μm atmospheric qhov rais, thiab qis attenuation hauv huab cua. . Tsis tas li ntawd, 905 nm nyob rau hauv qhov txaus ntshai band ntawm tib neeg lub qhov muag, yog li lub hwj chim yuav tsum raug txwv kom txo tau qhov kev puas tsuaj rau tib neeg lub qhov muag, thaum 1550nm yog nyob rau hauv kev nyab xeeb band ntawm tib neeg lub qhov muag, yog li 1550nm band kuj muaj cov ntawv thov hauv lidar.

808nm IR Laser Modules

Nyob rau hauv luv luv, ntawm ib sab, vim hais tias lub laser technology ntawm lub wavelength tseem mature, qhov kev ua tau zoo tus nqi piv yog siab dua, ntawm qhov tod tes, cov wavelengths ntawm lub teeb nyob rau hauv txawv daim ntawv thov scenarios qhia tau zoo heev ua tau zoo, cov laj thawj no ua rau muaj ntau yam. laser ntawm no bands.

Tiv tauj xov tooj:

Yog tias koj muaj lus nug, thov hu rau peb. Txawm peb cov neeg muas zaub nyob qhov twg thiab peb cov kev xav tau yog dab tsi, peb yuav ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom zoo, tus nqi qis, thiab kev pabcuam zoo tshaj plaws.