BaGa4Se7 Crystals


  • hui ākea: Pc
  • Laulā hoʻouna:0.47-18μm
  • Ka helu nui NLO:d11 = 24 pm/V
  • Hoʻohālikelike ʻia @2μm:0.07
  • Ka paepae pōʻino (1μm, 5ns):550MW/cm2
  • Huahana Huahana

    Nā palena ʻenehana

    wikiō

    Papa helu waiwai

    ʻO nā kristal kiʻekiʻe o BGSe (BaGa4Se7) ka selenide analogue o ka hui chalcogenide BaGa4S7, nona ka ʻano orthorhombic acentric i ʻike ʻia i ka makahiki 1983 a ua hōʻike ʻia ka hopena IR NLO ma 2009, he aniani IR NLO hou.Ua loaʻa iā ia ma o ka ʻenehana Bridgman-Stockbarger.Hōʻike kēia aniani i ka transmittance kiʻekiʻe ma luna o ka laulā o 0.47-18 μm, koe wale no kahi kiʻekiʻe absorption ma kahi o 15 μm.
    ʻO ka FWHM o ka (002) peak rocking curve ma kahi o 0.008° a ʻo ka transmittance ma o kahi pā 2 mm mānoanoa (001) i poni ʻia ma kahi o 65% ma luna o ka laulā o 1-14 μm.Ua ana ʻia nā ʻano thermophysical like ʻole ma nā kristal.
    ʻAʻole hōʻike ka ʻano hoʻonui wela i BaGa4Se7 i ka anisotropy ikaika me αa=9.24×10−6 K−1, αb=10.76×10−6 K−1, a me αc=11.70×10−6 K−1 ma nā koʻi crystallographic ʻekolu. .ʻO nā helu hoʻoheheʻe wela/wela hoʻoili i ana ʻia ma 298 K he 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, ma ka a, b, c crystallographic axis.
    Eia kekahi, ua ana ʻia ka paepae pōʻino o ka laser ma 557 MW/cm2 me ka hoʻohana ʻana i ka laser Nd:YAG (1.064 μm) ma lalo o nā kūlana o 5 ns pulse laula, 1 Hz frequency, a me D=0.4 mm ka nui kiko.
    Hōʻike ʻo BGSe (BaGa4Se7) crystal i ka pauka lua harmonic generation (SHG) pane ma kahi o 2-3 mau manawa o AgGaS2.ʻO ka paepae pōʻino o ka laser ma kahi o 3.7 mau manawa ma mua o ke aniani AgGaS2 ma lalo o nā kūlana like.
    Loaʻa i ka BGSe kristal ka nui nonlinear susceptibility, a hiki ke loaʻa i kahi ākea ākea no ka hoʻohana pono ʻana i ka mid-IR spectral region.It hōʻike hoihoi terahertz phonon-polaritons a me nā coefficients nonlinear kiʻekiʻe no ka hanauna terahertz.
    Nā pōmaikaʻi no ka hoʻopuka laser IR:
    He kūpono no nā kumu puna like ʻole (1-3μm)
    Laulā puka puka IR hiki ke hoʻopaʻa ʻia (3-18μm)
    OPA, OPO, DFG, intracavity/extravity, cw/pulse pumping
    Hoʻolaha koʻikoʻi: No ka mea he ʻano ʻano kristal hou kēia, he liʻiliʻi paha nā kaha o loko, akā ʻaʻole mākou e ʻae i ka hoʻihoʻi ʻana ma muli o kēia hemahema.

    hui ākea Pc
    Laulā hoʻouna 0.47-18μm
    Ka helu nui NLO d11 = 24 pm/V
    ʻO ka hoʻohālikelike ʻana @2μm 0.07
    Ka paepae pōʻino (1μm, 5ns) 550MW/cm2

    Hoʻohālike

    Huahana Nui Kūlana Ili mauna

    Ka nui

    DE0041

    BGSe 7*7*1mm θ=40.5°;φ=0° Ua poni ʻia nā ʻaoʻao ʻelua ʻAʻole kau ʻia

    1

    DE0172

    BGSe 3*3*2mm θ=42°;φ=0° Ua poni ʻia nā ʻaoʻao ʻelua ʻAʻole kau ʻia

    2

    DE0173

    BGSe 3*3*5mm θ=42°;φ=0° Ua poni ʻia nā ʻaoʻao ʻelua ʻAʻole kau ʻia

    1

    DE0196

    BGSe 6*6*5mm θ=54°;φ=0° Ua poni ʻia nā ʻaoʻao ʻelua ʻAʻole kau ʻia

    1