Nd: Amakristalu we-YVO4


  • Ubuningi be-Atomic: Ama-athomu angu-1.26x1020 / cm3 (Nd1.0%)
  • Ipharamitha Yesakhiwo seCrystal: I-Zircon Tetragonal, iqembu lesikhala D4h-I4 / amd a = b = 7.1193Å, c = 6.2892Å
  • Ubuningi: 4.22g / cm3
  • Ubulukhuni be-Mohs: 4-5 (okufana nengilazi)
  • Thermal Ukunwetshwa Coefficient (300K): αa = 4.43x10-6 / K αc = 11.37x10-6 / K
  • Ukushisa kwe-Thermal Conductivity (300K): I-:C: 0.0523W / cm / K
    I-:C: 0.0510W / cm / K
  • Ukulinganisa ubude bomkhathi: 1064nm, 1342nm
  • Thermal Coefficient optical (300K): i-dno / dT = 8.5 × 10-6 / K.
    dne / dT = 2.9 × 10-6 / K
  • Isigaba esiphambanweni sokukhishwa kwesikhuthazo: 25 × 10-19cm2 @ 1064nm
  • Imininingwane yomkhiqizo

    Izakhiwo eziyisisekelo

    Nd: YVO4 iyona ephumelela kunazo zonke i-laser host crystal yokumpompa i-diode phakathi kwamakristalu wamanje we-laser wezentengiso, ikakhulukazi, wamandla aphansi kuye kumaphakathi. Lokhu ikakhulukazi kungenxa yezimpawu zayo zokumunca nezokuphuma ezidlula i-Nd: YAG. Kudonswe ngama-diode e-laser, u-Nd: YVO4 crystal ufakiwe namakhemikhali aphezulu we-NLO coefficient (LBO, BBO, noma i-KTP) ukwenza imvamisa-isuse okukhiphayo kusuka ku-infrared eseduze kuya ku-green, blue, noma ngisho naku-UV. Lokhu kufakwa ekwakheni wonke ama-lasers wombuso oqinile kuyithuluzi elifanele le-laser elingahlanganisa izinhlelo ezisatshalaliswa kakhulu zama-lasers, kufaka phakathi ukwenziwa kwemishini, ukucubungula izinto, ukubonwa okuningiliziwe, ukuhlolwa kwesilonda, ukukhombisa ukukhanya, ukuxilongwa kwezokwelapha, ukuphrinta kwe-laser, kanye nokugcinwa kwedatha, njll. kukhonjisiwe ukuthi i-Nd: YVO4 based diode impompowe i-lasers state eqinile ihlala ngokushesha ezimakethe ngokwesiko ebuswa ama-lasers apholile ngamanzi nama-lasers akhishwe ngamalambu, ikakhulukazi lapho kudingeka ukukhishwa kwe-compact kanye nemodi ye-single-longitudinal-mode mode.
    Izinzuzo zikaNd: YVO4 kuneNd: YAG:
    • Ukuphakama okucishe kube cishe izikhathi ezinhlanu okukhudlwana kusebenza ngaphezu komkhawulokudonsa obanzi wokumpompa ozungeze u-808 nm (ngakho-ke, ukuncika kubude be-waveingth kuphansi kakhulu nokuthambekela okuqinile kokukhishwa kwemodi eyodwa);
    • Ubukhulu obuphinda kathathu obukhulukazi obushukumisayo bokukhishwa kwesikhunta kubude bokulinganisa be-1064nm;
    • Umkhawulo wokuheha okuphansi nokusebenza kahle kwethambeka eliphakeme;
    • Njengekristalu engaxubeki ne-birefringence enkulu, ukuphuma kungumugqa ogqamile kuphela. 
    Izakhiwo ze-Laser ze-Nd: YVO4:
    • Uhlamvu olulodwa oluheha kakhulu u-Nd: YVO4, uma uqhathaniswa no-Nd: YAG, inani lokumuncwa kwalo eliphindwe kahlanu kunani lomkhawulokudonsa elibanzi elizungeze i-808nm peak pump wavelength, ehambelana nje nezinga lamandla aphezulu e-laser diode akhona njengamanje. Lokhu kusho ukuthi ikristalu elincane elingasetshenziselwa i-laser, eliholele ohlelweni lwe-laser oluhlangene kakhulu. Ukuze uthole amandla wokukhipha onikeziwe, lokhu kusho nokuthi izinga lamandla aphansi lapho kusebenza khona i-diode laser, ngaleyo ndlela kwandise isikhathi se-diode ye-laser ebizayo. Umkhawulokudonsa wokumunca obanzi we-Nd: YVO4 ongafinyelela izikhathi ezi-2.4 kuye kwezingu-6.3 kunalezo ze-Nd: YAG. Ngaphandle kokumpompa okuthe xaxa, kusho futhi ububanzi obubanzi bokukhethwa kokucaciswa kwediode. Lokhu kuzosiza abenzi bohlelo lwe-laser ukubekezelelana okubanzi ngokukhetha izindleko eziphansi.
    Nd: I-YVO4 crystal inezigaba ezinqwabelanayo ezikhudlwana, zombili ku-1064nm naku-1342nm. Lapho i-eksisi isika u-Nd: YVO4 crystal lasing at 1064m, icishe iphindwe izikhathi ezi-4 kunaleyo ye-Nd: YAG, ngenkathi ngo-1340nm isigaba esinqamulayo esikhuthazekile sikhulu ngokuphindwe ka-18, okuholela ekusebenzeni kwe-CW okuphumelela ngokuphelele ku-Nd: YAG ngo-1320nm. Lokhu kwenza i-Nd: YVO4 laser kube lula ukugcina ukukhishwa komugqa owodwa oqinile kuma-wavelengths amabili.
    • Omunye umlingiswa obalulekile we-Nd: YVO4 lasers, ngoba iyi-uniaxial kunokuba i-symmetry ephezulu ye-cubic njengo-Nd: YAG, ikhipha kuphela i-laser ehlukaniswe ngomugqa, ngaleyo ndlela igweme imiphumela engathandeki ye-birefringent ekuguqulweni kwemvamisa. Yize isikhathi sempilo ka-Nd: YVO4 sicishe sibe izikhathi ezi-2.7 esifushane kunaleso se-Nd: YAG, ukusebenza kahle kwethambeka layo kusengaphakama kakhulu ekwakhiweni okufanele komgodi we-laser, ngenxa yokusebenza kahle kwepompo ephezulu kakhulu.

    Ubuningi be-Atomic Ama-athomu ayi-1.26 × 1020 / cm3 (Nd1.0%)
    Ukwakheka kwe-CrystalIpharamitha Yeseli I-Zircon Tetragonal, iqembu lesikhala D4h-I4 / amd
    a = b = 7.1193Å, c = 6.2892Å
    Ubuningi 4.22g / cm3
    Ubulukhuni bukaMohs 4-5 (okufana nengilazi)
    Ukwanda Kwe-Thermal Coefficient300K αa = 4.43 × 10-6 / K
    αc = 11.37 × 10-6 / K
    Coefficient Yokuqhuba Okushisayo300K ∥C0.0523W / cm / K
    ⊥C0.0510W / cm / K
    Ukulahla ubude bamaza 1064nm1342nm
    I-coefficient ebonakalayo ye-Thermal300K i-dno / dT = 8.5 × 10-6 / K.
    dne / dT = 2.9 × 10-6 / K
    Isigaba esiphambanweni sokukhishwa kwesikhuthazo 25 × 10-19cm2 @ 1064nm
    Isikhathi sempilo seFluorescent Ama-90μs (1%)
    I-coefficient yokumunca 31.4cm-1 @ 810nm
    Ukulahleka kwangaphakathi 0.02cm-1 @ 1064nm
    Thola umkhawulokudonsa 0.96nm@1064nm
    Ihlukaniswe nge-laser ukuphuma ukwehlukaniswa ngokufana ne-axis ebonakalayo (c-axis)
    I-Diode yampompoza ukusebenza kahle kwe-optical > 60%

    Amapharamitha wezobuchwepheshe:

    I-Chamfer <λ/4 @ 633nm
    <λ @ 633nm <> Ukubekezelelana ntathuL(W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2 / -0.1mm)2.5mmL(W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2 / -0.1mm)
    (W ± 0.1mm) x (H ± 0.1mm) x (L + 0.5 / -0.1mm) Sula ukuvula
    I-Central 95% Flatnessλ / 8 @ 633 nm, λ / 4 @ 633nm
    ukukhathala okungaphansi kuka-2mm Ikhwalithi ephezulu
    10/5 Scratch / Dig nge-MIL-O-1380A ngayinye Ukufana
    ingcono kunemizuzwana engu-20 ye-arc ingcono kunemizuzwana engu-20 ye-arc
    I-Chamfer Ubuningi
    0.15x45deg 1064nmRUkumboza0.2%1064nmRUkugqoka i-HR99.8%T808nm