Nd:YVO4 Crystals


  • Cufnaanta atomiga:1.26x1020 atamka/cm3 (Nd1.0%)
  • Qiyaasta unugga Qaab-dhismeedka Crystal:Zircon Tetragonal, kooxda bannaan D4h-I4/amd a=b=7.1193Å,c=6.2892Å
  • Cufnaanta:4.22g/cm3
  • Mohs Hardness:4-5 ( muraayad u eg)
  • Iskuxidhka Balaadhinta kulaylka (300K):α=4.43x10-6/K αc=11.37x10-6/K
  • Isku-xirnaanta Hagaajinta kulaylka (300K):∥C:0.0523W/cm/K
    C:0.0510W/cm/K
  • Dhererka hirarka:1064nm, 1342nm
  • Isku dhafka indhaha ee kulaylka ah (300K):dno/dT=8.5×10-6/K
    dne/dT=2.9×10-6/K
  • Qaybta qiiqa la kiciyay:25×10-19cm2 @ 1064nm
  • Faahfaahinta Alaabta

    Guryaha aasaasiga ah

    Nd:YVO4 waa kan ugu waxtarka badan ee martida loo yahay laysarka ee loogu talagalay bamgareynta diode ee ka mid ah kiristaalo laysarka ganacsiga ee hadda jira, gaar ahaan, cufnaanta awoodda hoose iyo dhexe.Tani waxay inta badan u tahay nuugiddeeda iyo sifooyinkeeda qiiqa ee ka sarreeya Nd: YAG.Waxaa lagu soo riixay diodes leysarka, Nd:YVO4 crystal waxaa lagu daray kiristaalo isku xiran NLO sare (LBO, BBO, ama KTP) si inta jeer loogu beddelo wax soo saarka infrared dhow oo cagaar, buluug, ama xitaa UV.Isku-dhafkan si loo dhiso dhammaan laysarka gobolka adag waa qalab laser ku habboon oo dabooli kara codsiyada ugu baahsan ee laysarka, oo ay ku jiraan mashiinnada, farsamaynta walxaha, spectroscopy, kormeerka wafer, bandhigyada iftiinka, ogaanshaha caafimaadka, daabacaadda laser, iyo kaydinta xogta, iwm. ayaa la muujiyay in Nd:YVO4 ku salaysan diode lagu shubay leysarka gobolka adag ay si degdeg ah u qabsanayaan suuqyada sida caadiga ah ay u badan yihiin lasers ion biyaha qaboojiyey iyo laambad bamgaraysan, gaar ahaan marka naqshadaynta cufan iyo habka hal-longitudinal-mode loo baahan yahay.
    Nd:YVO4 faa'iidooyinkeeda marka loo eego Nd:YAG:
    • Ilaa iyo inta ugu badan ee nuugista ka weyn shan jeer si hufan oo ku saabsan bamgareynta ballaaran ee ku wareegsan 808 nm (sidaas darteed, ku-tiirsanaanta mawjada dhererka bamgareynta ayaa aad u hooseeya waxayna u janjeertaa wax soo saarka hal qaab);
    • In kasta oo saddex jeer ka weyn qaybta qiiqa kicinta kicinta ee dhererka hirarka 1064nm;
    • Xadka lasiska hoose iyo hufnaanta sare ee jiirada;
    • Sida crystal uniaxial leh birefringence weyn, qiiqa waa kaliya polarized toosan.
    Qalabka Laser-ka ee Nd:YVO4:
    Mid ka mid ah dabeecadda ugu soo jiidashada badan ee Nd:YVO4 waa, marka la barbar dhigo Nd:YAG, 5 jeer ka weyn ee nuugista isku xidhka xajmiga nuugista ballaaran ee dhererka dhererka 808nm ee dhererka bamka ugu sarreeya, kaas oo u dhigma heerka sare ee diodes laser hadda la heli karo.Tani waxay ka dhigan tahay crystal yar oo loo isticmaali karo laysarka, taasoo horseedaysa nidaam layser ah oo cufan.Awood wax-soo-saar la siiyay, tani waxay sidoo kale ka dhigan tahay heerka korantada hoose ee uu ku shaqeeyo diode laser, sidaas darteed kordhinta cimriga diode laser qaali ah.Baaxadda nuugista ballaadhan ee Nd:YVO4 oo laga yaabo inay gaadho 2.4 ilaa 6.3 jeer ka Nd:YAG.Ka sokow bamgareynta waxtarka leh, waxay sidoo kale ka dhigan tahay kala duwanaansho ballaaran oo xulashada tilmaamo diode ah.Tani waxay waxtar u yeelan doontaa kuwa sameeya nidaamka laysarka ee dulqaadka ballaadhan ee doorashada qiimaha jaban.
    • Nd: YVO4 crystal waxa uu leeyahay qaybo isgoysyada qiiqa sii daaya ee ka weyn, labadaba 1064nm iyo 1342nm.Marka dhidibku gooyo Nd: YVO4 crystal lasing at 1064m, waxay ku saabsan tahay 4 jeer ka sarreeya kan Nd: YAG, halka 1340nm qaybta iskutallaabta kicinta ay 18 jeer ka weyn tahay, taas oo horseedaysa hawlgalka CW oo si buuxda uga sarreeya Nd: YAG 1320nm.Kuwani waxay ka dhigayaan Nd:YVO4 laser inuu noqdo mid sahlan si loo joogteeyo qiiqa xariijinta xooggan ee labada mawjadaha dhererka.
    Dabeecadda kale ee muhiimka ah ee Nd:YVO4 lasers waa, sababtoo ah waa uniaxial halkii ay ka ahaan lahayd suemmetry sare oo cubic ah sida Nd:YAG, waxay soo saartaa kaliya leys toosan oo toosan, sidaas darteed ka fogaanshada saameynta birefringent ee aan loo baahnayn ee beddelka soo noqnoqda.In kasta oo cimriga Nd:YVO4 uu 2.7 jeer ka gaaban yahay kan Nd:YAG, waxtarkeeda jiirada ayaa weli aad u sarreeya naqshadda habboon ee dalool laysarka, sababtoo ah waxtarkeeda tirada badan ee bamka.

    Cufnaanta atomiga 1.26×1020 atamka/cm3 (Nd1.0%)
    Qaab dhismeedka Crystal Zircon Tetragonal, kooxda bannaan ee D4h-I4/amd
    a=b=7.1193Å,c=6.2892Å
    Cufnaanta 4.22g/cm3
    Mohs Hardness 4-5 ( muraayad u eg)
    Iskuxidhka Balaadhinta kulaylka(300K) α=4.43×10-6/K
    αc=11.37×10-6/K
    Isku-xirnaanta Hagaajinta kulaylka(300K) ∥C0.0523W/cm/K
    ⊥C0.0510W/cm/K
    Mawjada dhererka daataan 1064nm,1342nm
    Heerarka kuleyliyaha indhaha(300K) dno/dT=8.5×10-6/K
    dne/dT=2.9×10-6/K
    Qaybta isdhaafsiga sii daayo ee la kiciyay 25×10-19cm2 @ 1064nm
    Inta lagu jiro nolosha fluorescent 90μs (1%)
    Isku-dhafka nuugista 31.4cm-1 @810nm
    Khasaare gudaha ah 0.02cm-1 @1064nm
    Hel bandwidth 0.96nm@1064nm
    Dheecaan laser-ka-soo-baxa polarization;barbar socda dhidibka indhaha (c-axis)
    Diode ayaa ku shubay indho-indheynta waxtarka indhaha >60%

    Qiyaasta Farsamada:

    Chamfer <λ/4 @ 633nm
    Dulqaadyada cabbirka (W±0.1mm)x(H±0.1mm)x(L+0.2/-0.1mm)(L22.5mm)(W±0.1mm)x(H±0.1mm)x(L+0.5/-0.1mm)(L2.5mm)
    Bannaanka daloolka Bartamaha 95%
    Fiican λ/8 @ 633 nm, λ/4 @ 633nm(calaamad ka yar 2mm)
    Tayada dusha sare 10/5 xoqid/qodi halkii MIL-O-1380A
    Isbarbar yaac wax ka badan 20 arc
    Si toos ah Si toos ah
    Chamfer 0.15x45deg
    Dahaarka 1064nm,R20.2%;Daboolka HR1064nm,R99.8%,808nm,T95%