BGSe (BaGa4Se7) Crystal

Kirisiti yo mu rwego rwo hejuru ya BGSe (BaGa4Se7) ni analoge ya selenide ya chalcogenide compound BaGa4S7, imiterere ya acentric orthorhombic yamenyekanye mu 1983 kandi ingaruka za IR NLO zavuzwe muri 2009, ni kristu nshya ya IR NLO.Yabonetse hakoreshejwe tekinike ya Bridgman - Stockbarger.Iyi kristu yerekana kohereza cyane hejuru ya 0.47-18 mkm, usibye impinga yo kwinjirira kuri 15 mm.


  • itsinda ry'umwanya: Pc
  • Urwego rwohereza:0.47-18 mm
  • Coefficient ya NLO:d11 = 24h00 / V.
  • Birefringence @ 2μm:0.07
  • Umubare wibyangiritse (1μm, 5ns):550MW / cm2
  • Ibicuruzwa birambuye

    Ibipimo bya tekiniki

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    Urutonde rwimigabane

    Crystal nziza yo mu rwego rwo hejuru ya BGSe (BaGa4Se7) ni analoge ya selenide ya chalcogenide compound BaGa4S7, imiterere ya orthorhombic ya acentric yamenyekanye mu 1983 kandi ingaruka za IR NLO zavuzwe muri 2009, ni kristu nshya ya IR NLO.Yabonetse hakoreshejwe tekinike ya Bridgman - Stockbarger.Iyi kristu yerekana kohereza cyane hejuru ya 0.47-18 mkm, usibye impinga yo kwinjirira kuri 15 mm.
    FWHM yumurongo wa (002) wikubita hejuru ya 0.008 ° naho kohereza binyuze mumasahani ya mm 2 yuzuye (001) ni hafi 65% hejuru yuburebure bwa 1-14 mm.Ibintu bitandukanye bya termofiziki byapimwe kuri kristu.
    Imyitwarire yo kwagura ubushyuhe muri BaGa4Se7 ntigaragaza anisotropy ikomeye hamwe na αa = 9.24 × 10−6 K - 1, αb = 10.76 × 10−6 K - 1, na αc = 11.70 × 10−6 K - 1 ukurikije amashoka atatu ya kristu. .Ubushuhe bwo gukwirakwiza ubushyuhe / coefficient yubushyuhe bwa metero 298 K ni 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, ukurikije umurongo wa a, b, c.
    Byongeye kandi, igipimo cyangiritse cya laser cyapimwe kugera kuri MW 557 MW / cm2 ukoresheje lazeri ya Nd: YAG (1.064 μ m) mu bihe byubugari bwa 5 ns, ubugari bwa Hz 1, na D = 0.4 mm.
    BGSe (BaGa4Se7) kristu yerekana ifu igisubizo cya kabiri cyuzuzanya (SHG) gikubye inshuro 2-33 za AgGaS2.Ubuso bwa laser yangiritse burenga inshuro 3.7 ugereranije na AgGaS2 kristu mubihe bimwe.
    BGSe kristal ifite ubunini bunini butari umurongo, kandi irashobora kugira ibyiringiro byinshi mubikorwa bifatika mukarere ka IR rwagati.Byerekana terahertz fonon-polaritons ishimishije hamwe na coefficient ndende idafite umurongo kubisekuruza bya terahertz.
    Ibyiza bya IR laser isohoka:
    Bikwiranye nisoko itandukanye yo kuvoma (1-3μm)
    Umuyoboro mugari wa IR usohoka (3-18μm)
    OPA, OPO, DFG, intracavity / kurenza urugero, kuvoma cw / pulse
    Icyitonderwa cyingenzi: Kuva ibi ubu bwoko bushya bwa kristu, imbere muri kristu irashobora kugira imirongo mike, ariko ntitwemera kugaruka kubera iyi nenge.

    itsinda ryumwanya Pc
    Urwego rwohereza 0.47-18 mm
    Coefficient ya NLO d11 = 24h00 / V.
    Birefringence @ 2μm 0.07
    Umubare wibyangiritse (1μm, 5ns) 550MW / cm2

    Icyitegererezo Ibicuruzwa Ingano Icyerekezo Ubuso Umusozi Umubare
    DE0987 BGSe 10 * 10 * 1mm θ = 43 ° φ = 0 ° impande zombi zisize Ntibisanzwe 1
    DE1283 BGSe 5 * 5 * 3mm θ = 60 ° φ = 0 ° impande zombi zisize Ntibisanzwe 1