BaGa4Se7 Muaju


  • chaw pab pawg: Pc
  • Kis kis: 0.47-18μm
  • Qhov tseem ceeb NLO coefficient: d11 = 24 teev tsaus ntuj / V
  • Kev Khwv @ 2μm: 0.07
  • Qhov pib puas tsuaj (1μm, 5ns): 550MW / cm2
  • Khoom Nthuav dav

    Kev tsis

    Yees duab video

    Muaj cov khoom siv hluav taws xob zoo ntawm BGSe (BaGa4Se7) yog selenide analogue ntawm chalcogenide compound BaGa4S7, uas cov qauv siv acentric orthorhombic tau txheeb pom xyoo 1983 thiab IR NLO nyhuv tau qhia nyob rau xyoo 2009, yog qhov tshiab tsim IR NLO siv lead ua. Nws tau los ntawm Bridgman – Stockbarger txheej txheem. Cov iav no ua kom pom kev sib hloov siab tshaj qhov ntau ntawm 0.47–18 μm, tshwj tsis yog rau lub ncov nqus ntawm ib puag ncig 15 μm. 
    FWHM ntawm (002) lub ncov pob zeb sib tsoo yog li ntawm 0.008 ° thiab qhov sib kis tau los ntawm kev hloov siab 2 hli tuab (001) phaj yog thaj tsam 65% dhau ntawm qhov ntau ntawm 1–14 μm. Ntau yam thermophysical cov yam ntxwv tau ntsuas ntawm cov khoom muaju.
    Tus cwj pwm kub txaus hauv BaGa4Se7 tsis nthuav qhia txog qhov muaj zog anisotropy nrog αa = 9.24 × 10−6 K − 1, αb = 10.76 × 10−6 K − 1, thiab αc = 11.70 × 10−6 K − 1 raws li peb tus kab hluav taws xob crystallographic. Cov. Cov thermal diffusivity / thermal conductivity coefficients ntsuas ntawm 298 K yog 0.50 (2) mm2 s − 1 / 0.74 (3) W m − 1 K − 1, 0.42 (3) mm2 s − 1 / 0.64 (4) W m − 1 K − 1, 0.38 (2) mm2 s − 1 / 0.56 (4) W m − 1 K − 1, raws li a, b, c crystallographic axis feem.
    Tsis tas li ntawd, cov teeb meem saum npoo laser kev puas tsuaj tau ntsuas los ua 557 MW / cm2 siv lub Nd: YAG (1.064 μm) laser raws li cov xwm txheej ntawm 5 ns mem tes dav, 1 Hz zaus, thiab D = 0.4 hli chaw loj.
    BGSe (BaGa4Se7) cov khoom siv lead ua kom pom cov hmoov thib ob lub sijhawm tsim kev kub ntxhov (SHG) cov lus teb uas yog kwv yees li 2-3 zaug ntawm AgGaS2. Qhov saum npoo kev puas tsuaj hluav taws xob ua haujlwm yog kwv yees li 3.7 npaug ntawm AgGaS2 siv lead ua nyob rau hauv cov xwm txheej zoo ib yam.
    BGSe siv lead ua muaj qhov loj tsis yooj yim txog kev cuam tshuam, thiab tej zaum yuav muaj kev cia siab dav dav rau cov kev coj ua tau zoo nyob rau hauv nruab nrab-IR spectral thaj av. 
    Zoo rau IR laser cov zis:
    Haum rau ntau qhov chaw tso tawm (1-3μm)
    Kev nthuav dav nyob hauv IR cov zis ntau (3-18μm)
    OPA, OPO, DFG, intracavity / tshem tawm, cw / pulse tso tawm
    Cov ntawv ceeb toom tseem ceeb: Vim tias qhov no tau siv cov hom tshiab, sab hauv siv lead ua yuav muaj qee qhov qis, tab sis peb tsis kam txais rov qab vim qhov kev cuam tshuam no.

    chaw pab pawg Pc
    Ntau kis 0.47-18μm
    Loj NLO coefficient d11 = 24 teev tsaus ntuj / V
    Kev Muag Khoom @ 2μm 0.07
    Qhov pib puas tsuaj (1μm, 5ns) 550MW / cm2