Brandnew muaj Qhov Chaw Dawb Qhov Narrow Linewidth Laser Diodes tsim kom tau raws li Raman spectroscopy cov cai. Raman spectroscopy yog cov txheej txheem spectroscopic feem ntau siv los txiav txim siab hom kev vibrational molecules. Nws yog feem ntau siv hauv chemistry los muab cov qauv ntiv tes los ntawm cov molecules tuaj yeem txheeb xyuas. Nws yog raws li inelastic scattering (los yog Raman tawg) ntawm lub teeb monochromatic ntawm wavelengths raug nyob rau hauv qhov pom ntau lossis hauv IR ntau. Lub teeb no feem ntau yog tsim los siv lub laser uas ua tiav qhov kev ua haujlwm tseem ceeb xws li nqaim spectral linewidth, lub teeb pom kev zoo thiab lub zog tso zis siab thiab ruaj khov. Lub laser diodes yog zoo heev suited raws li lub teeb qhov chaw rau daim ntawv thov no. Lawv muaj nyob rau ntawm wavelengths 638nm, 785nm, 808nm, 830nm, 976nm & 1064nm thiab nrog lub zog tso zis mus txog 800mW. Lub spectral linewidth yog nqaim heev vim muaj kev sib koom ua ke Volume Bragg Grating (VBG) thiab feem ntau tsawg dua 0.1nm. Ua tib zoo tswj cov thermomechanical thiab high-precision alignment hauv lub laser yog ib qho tseem ceeb kom ua tiav kev ruaj ntseg hauv cov zis wavelength thiab linewidth, tshwj xeeb tshaj yog thaum ua haujlwm ntawm lub laser ntawm qhov sib txawv ntawm qhov kub thiab txias. Lub laser diodes tau ntim rau hauv ib pob khoom npauj npaim nrog rau qhov chaw pub dawb. Ib qho kev sib xyaw ua ke thermo-electric txias (TEC) yog xaiv tau.
Tsis muaj qhov tsis ntseeg, Raman spectroscopy txuas ntxiv yog cov txheej txheem kev tshuaj ntsuam xyuas uas yuav zoo li txuas ntxiv mus siv hauv kev lag luam thiab kev lag luam yav tom ntej. Cov txheej txheem yog shrinking, kev daws teeb meem thiab rhiab heev yog nce, thiab cov Cheebtsam tau ua ntau txhim khu kev qha. Nkag siab txog kev cuam tshuam ntawm lasers kev ua tau zoo yog qhov tseem ceeb rau kev ua tiav txuas ntxiv hauv cov ntawv thov tshiab no. Brandnew yuav txaus siab los pab txhawb koj nrhiav qhov zoo tshaj plaws kev daws teeb meem.
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