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Isithombe Esifakiwe se-LBO Crystal
  • I-LBO Crystal
  • I-LBO Crystal

I-LBO Crystal

I-LBO (Lithium Triborate – LiB3O5) manje isiwumthombo we-laser we-Second Harmonic Generation (SHG) we-1064nm high power lasers (ethatha indawo ye-KTP) kanye ne-Sum Frequency Generation (SFG) yomthombo we-laser ongu-1064nm ukuze kuzuzwe ukukhanya kwe-UV ku-355nm. .


  • Isakhiwo Sekristalu:Orthorhombic, Space group Pna21, Point group mm2
  • Ipharamitha ye-Lattice:a=8.4473Å,b=7.3788Å,c=5.1395Å,Z=2
  • I-Melting Point:Cishe 834 ℃
  • Ukuqina kwe-Mohs: 6
  • Ukuminyana:2.47g/cm3
  • I-Thermal Expansion Coeficients:αx=10.8x10-5/K, αy=-8.8x10-5/K,αz=3.4x10-5/K
  • αx=10.8x10-5/K, αy=-8.8x10-5/K,αz=3.4x10-5/K:3.5W/m/K
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    Imininingwane Yomkhiqizo

    Imingcele yezobuchwepheshe

    I-LBO (Lithium Triborate - LiB3O5) manje isiwumthombo we-laser we-Second Harmonic Generation (SHG) we-1064nm high power lasers (ethatha indawo ye-KTP) kanye ne-Sum Frequency Generation (SFG) yomthombo we-laser ongu-1064nm ukuze kuzuzwe ukukhanya kwe-UV ku-355nm. .
    I-LBO iyisigaba esifanelana ne-SHG ne-THG ye-Nd:YAG kanye ne-Nd:YLF lasers, kusetshenziswa ukuxhumana kohlobo I noma uhlobo lwe-II.Ku-SHG kuzinga lokushisa legumbi, ukufaniswa kwesigaba I kungafinyelelwa futhi kunesilinganiso esiphezulu esisebenza ngempumelelo se-SHG kundiza eyinhloko i-XY ne-XZ ebangeni elibanzi lamaza kusuka ku-551nm ukuya cishe ku-2600nm.Ukusebenza kahle kokuguqulwa kwe-SHG okungaphezu kuka-70% kokushaya kwenhliziyo kanye no-30% kumalaser e-cw Nd:YAG, kanye nokusebenza kahle kokuguqulwa kwe-THG okungaphezu kuka-60% kwe-pulse Nd:YAG laser kuye kwabonwa.
    I-LBO iyikristalu ye-NLO enhle kakhulu yama-OPO nama-OPA enobubanzi obungaguquleka be-wavelength namandla aphezulu.Lezi OPO kanye ne-OPA ezimpontshwa i-SHG ne-THG ye-Nd:YAG laser kanye ne-XeCl excimer laser engu-308nm zibikiwe.Izici eziyingqayizivele zohlobo I kanye nohlobo lwe-II lokufanisa isigaba kanye ne-NCPM zishiya igumbi elikhulu ocwaningweni nasekusetshenzisweni kwe-OPO ye-LBO ne-OPA.
    Izinzuzo:
    • Ukukhanya okubanzi kuhluka kusuka ku-160nm kuya ku-2600nm;
    • I-homogeneity ephezulu yokubona (δn≈10-6/cm) kanye nokukhululeka ekufakweni;
    • I-coefficient ye-SHG enkulu ngokuqhathaniswa (cishe iphindwe kathathu kune-KDP);
    • Umkhawulo womonakalo omkhulu;
    • I-angle yokwamukela ebanzi kanye ne-walk-off encane;
    • Thayipha I bese uthayipha II ukufanisa isigaba esingabalulekile (NCPM) ebangeni elibanzi lamaza;
    • I-Spectral NCPM eduze ne-1300nm.
    Izicelo:
    • Okuphumayo okungaphezu kuka-480mW ngo-395nm kukhiqizwa imvamisa yokuphinda kabili i-Ti:Sapphire laser ekhiywe kumodi engu-2W (<2ps, 82MHz).Ububanzi be-wavelength obungu-700-900nm bumbozwe yikristalu ye-LBO engu-5x3x8mm3.
    • Okukhiphayo okuluhlaza okungaphezu kuka-80W kutholwa nge-SHG yelaser ye-Q-switched Nd:YAG ohlotsheni lwe-II lwekristalu ye-LBO engu-18mm ubude.
    • Ukuphindwa kabili kwe-frequency ye-diode pumped laser Nd:YLF (>500μJ @ 1047nm,<7ns, 0-10KHz) kufinyelela ngaphezulu kokungu-40% kokusebenza kahle kokuguqulwa kucrystal ye-LBO engu-9mm ubude.
    • Ukukhishwa kwe-VUV ku-187.7 nm kutholwa ngokukhiqizwa kwe-sum-frequency.
    • I-2mJ/pulse diffraction-limited beam ku-355nm itholwa nge-intracavity frequency kathathu nge-Q-switched Nd:YAG laser.
    • Ukusebenza kahle kokuguqulwa okuphakeme kakhulu kanye nobubanzi be-wavelength obuguqulekayo obungu-540-1030nm kutholwe nge-OPO ephonswe ku-355nm.
    • Uhlobo I OPA olumpontshwa ku-355nm ngokusebenza kahle kokuguqulwa kwephampu ukuya kusignali okungama-30% kubikiwe.
    • Uhlobo lwe-II lwe-NCPM OPO olumpontshwa i-XeCl excimer laser ku-308nm luzuze ukuguqulwa okusebenzayo okungu-16.5%, futhi ububanzi obumaphakathi obushuthekayo obulinganiselwe bungase butholakale ngemithombo ehlukene yokupompa kanye nokushunwa kwezinga lokushisa.
    • Ngokusebenzisa indlela ye-NCPM, uhlobo lwe-OPA lwe-I olumpontshwa i-SHG ye-laser ye-Nd:YAG engu-532nm luphinde lwabonwa ukuze lumboze ububanzi obuguqulekayo obusuka ku-750nm ukuya ku-1800nm ​​ngokushuna kwezinga lokushisa ukusuka ku-106.5℃ ukuya ku-148.5℃.
    • Ngokusebenzisa uhlobo lwe-II lwe-NCPM LBO njengejeneretha yepharamitha yokubona (i-OPG) kanye nohlobo lwe-BBO ehambisana nesigaba esibucayi njenge-OPA, kutholwe ububanzi bomugqa obuncane (0.15nm) kanye nokusebenza kahle kokuguqulwa kwephampu ukuya kusignali (32.7%). uma iphanjwa nge-4.8mJ, i-laser engu-30ps ku-354.7nm.Ibanga le-wavelength lokushuna ukusuka ku-482.6nm ukuya ku-415.9nm limbozwe ngokukhuphula izinga lokushisa le-LBO noma ngokuzungezisa i-BBO.

    Izakhiwo eziyisisekelo

    Isakhiwo Sekristalu

    Orthorhombic, Space group Pna21, Point group mm2

    Ipharamitha ye-Lattice

    a=8.4473Å,b=7.3788Å,c=5.1395Å,Z=2

    I-Melting Point

    Cishe 834 ℃

    Mohs Ukuqina

    6

    Ukuminyana

    2.47g/cm3

    I-Thermal Expansion Coeficients

    αx=10.8×10-5/K, αy=-8.8×10-5/K,αz=3.4×10-5/K

    I-Thermal Conductivity Coefficients

    3.5W/m/K

    Transparency Range

    160-2600nm

    I-SHG Phase Ibanga Eliqhathanisekayo

    551-2600nm (Uhlobo I) 790-2150nm (Uhlobo II)

    I-Therm-optic Coefficient (/℃, λ in μm)

    dnx/dT=-9.3X10-6
    dny/dT=-13.6X10-6
    dnz/dT=(-6.3-2.1λ)X10-6

    I-Absorption Coefficients

    <0.1%/cm ku-1064nm <0.3%/cm ku-532nm

    Ukwamukelwa kwe-engeli

    6.54mrad·cm (φ, Uhlobo I,1064 SHG)
    15.27mrad·cm (θ, Uhlobo II,1064 SHG)

    Ukwemukelwa kwezinga lokushisa

    4.7℃·cm (Uhlobo I, 1064 SHG)
    7.5℃·cm (Uhlobo II, 1064 SHG)

    Ukwamukelwa kweSpectral

    1.0nm·cm (Uhlobo I, 1064 SHG)
    1.3nm·cm (Uhlobo II, 1064 SHG)

    I-Walk-off Angle

    0.60° (Uhlobo I 1064 SHG)
    0.12° (Uhlobo II 1064 SHG)

     

    Imingcele Yezobuchwepheshe
    Ukubekezelelana kobukhulu (W±0.1mm)x(H±0.1mm)x(L+0.5/-0.1mm) (L≥2.5mm)(W±0.1mm)x(H±0.1mm)x(L+0.1/-0.1) mm) (L<2.5mm)
    Imbobo ecacile maphakathi no-90% we-diameterAzikho izindlela ezihlakazekayo ezibonakalayo noma izikhungo lapho zihlolwa i-laser eluhlaza engu-50mW
    Ukucaba ngaphansi kuka-λ/8 @ 633nm
    Idlulisela ukuhlanekezela kwe-wavefront ngaphansi kuka-λ/8 @ 633nm
    I-Chamfer ≤0.2mm x 45°
    I-chip ≤0.1mm
    Klwelwa/Dig okungcono kuno-10/5 ukuya ku-MIL-PRF-13830B
    Ukufana kangcono kunemizuzwana engama-arc angama-20
    I-Perpendicularity ≤5 arc imizuzu
    Ukubekezelelana kwe-engeli △θ≤0.25°, △φ≤0.25°
    Umkhawulo womonakalo[GW/cm2] >10 kokungu-1064nm, TEM00, 10ns, 10HZ (okupholishiwe kuphela)>1 kokungu-1064nm, TEM00, 10ns, 10HZ (AR-coated)>0.5 kokungu-532nm, TEM00, 10ns, 10HZ (AR-coated)

    Izigaba zemikhiqizo

    Chofoza u-enter ukuze useshe noma u-ESC ukuze uvale