Nd: Kiristaalo YVO4


  • Cufnaanta Atomiga: 1.26x1020 atoms / cm3 (Nd1.0%)
  • Halbeegga unugyada 'Crystal Structure Cell': Zircon Tetragonal, koox boos D4h-I4 / amd a = b = 7.1193Å, c = 6.2892Å
  • Cufnaanta: 4.22g / cm3
  • Mohs adkaanta: 4-5 (Muraayad u eg)
  • Isugeynta Ballaarinta kuleylka (300K): =a = 4.43x10-6 / K αc = 11.37x10-6 / K
  • Isugeynta Kuleylka Kuleylka ah (300K): C : 0.0523W / cm / K
    C : 0.0510W / cm / K
  • Dhererka dhererka: 1064nm , 1342nm
  • Isugeyn heerkulka indhaha ah (300K): dno / dT = 8.5 × 10-6 / K
    dne / dT = 2.9 × 10-6 / K
  • Iskutallaabidda sii deynta kicinta: 25 × 10-19cm2 @ 1064nm
  • Faahfaahinta alaabta

    Guryaha aasaasiga ah

    Nd: YVO4 waa kareemka martida u ah ee ugu waxtarka badan leysarka bamboo diode ee ka imanaya kristantarrada leysarka ganacsiga ee hadda jira, gaar ahaan, cufnaanta hoose ilaa dhexe. Tani badanaa waxaa loogu talagalay nuugitaankeeda iyo astaamaha soo saarida oo ka sarreysa Nd: YAG. Lagu shubay diodiyada leysarka, Nd: YVO4 crystal waxaa lagu soo daray kiristaalo heer sare ah oo loo yaqaan "NLO coefficient crystals" (LBO, BBO, ama KTP) si loogu beddelo soo-saarka ka soo baxa infrared-ka u dhow cagaaran, buluug, ama xitaa UV. Isku-darkaani si loo dhiso dhammaan leysarka adag ee gobolka waa aalad laser ku habboon oo dabooli kara codsiyada ugu ballaadhan ee leysarka, oo ay ka mid yihiin mashiinka, farsamaynta qalabka, muraayadaha indhaha, kormeerka wafer, bandhigyada iftiinka, baaritaanka caafimaadka, daabacaadda leysarka, iyo keydinta xogta, iwm. ayaa la muujiyey in Nd: YVO4 salka ku haya diode oo si xoog leh u shubay leysarka gobolka ayaa si deg deg ah u qabsanaya suuqyada sida caadada u ah ay ku badan yihiin leysarka biyo-qaboojiyaha ah iyo laydhka laambadda ku shuba, gaar ahaan marka loo baahan yahay naqshad isku dhafan iyo wax soo saar hal-dherer ah
    Nd: Faa'iidooyinka YVO4 ee Nd: YAG:
    • Ilaa illaa shan jeer ka nuugid ka weyn oo wax ku ool ah baaxadda ballaadhinta ballaadhan ee qiyaastii 808 nm (sidaa darteed, ku tiirsanaanta dhererka dhererka mashiinka ayaa aad uga hooseeya oo u janjeera xoog-soo-saaridda qaabka keliya);
    • Ugu badnaan seddex jeer ka weyn sii kicinta soosaarka iskutallaabta dhererka dhererka dhererka 1064nm;
    • Xad-dhaafka marinka hoose iyo waxtarka sare ee jiirada;
    • Sida crystal uniaxial ah oo leh birefringence weyn, emission waa kaliya toos ah u kala qaybsan. 
    Guryaha Laser ee Nd: YVO4:
    • Hal dabeecad oo ugu soo jiidasho badan Nd: YVO4 waa, marka la barbardhigo Nd: YAG, 5 jeer ka weyn isugeyn nuugisteeda ballaadhin ballaadhan oo ballac ah oo dhererkeedu yahay 808nm peak pumpway, taas oo u dhiganta heerka cabbirka tamarta sare ee leysarka hadda la heli karo. Tani waxay ka dhigan tahay kareem yar oo loo isticmaali karo laser-ka, taasoo horseedaysa nidaam laser oo aad u kooban. Awoodda wax soo saar ee la siiyay, tani waxay sidoo kale ka dhigan tahay heer awood oo hooseeya oo diode laser-ku uu ku shaqeeyo, sidaasna ku sii dheereynayo cimriga qaaliga laser diode. Baaxadda ballaadhinta ballaaran ee Nd: YVO4 oo laga yaabo inay gaarto 2.4 illaa 6.3 jeer tan Nd: YAG. Ka sokow bamgareynta waxtarka leh, waxay sidoo kale ka dhigan tahay xulasho ballaaran oo ah qeexitaannada diode. Tani waxay caawin doontaa kuwa sameeya nidaamka laser-ka ee dulqaad ballaaran ee doorashada qiimaha hoose.
    • Nd: YVO4 crystal wuxuu leeyahay kicin badan oo iskutallaab ah, oo labadaba 1064nm iyo 1342nm. Marka a-dhidibka u gooyo Nd: YVO4 crystal lasing at 1064m, waxay qiyaastii 4 jeer ka sarreeysaa tan Nd: YAG, halka 1340nm kicinta iskutallaabtu ay 18 jeer ka weyn tahay, taas oo horseedaysa hawlgal CW ah oo gebi ahaanba ka sarreeya Nd: YAG at 1320nm. Kuwani waxay sameeyaan Nd: YVO4 laser way fududahay in la ilaaliyo qiiq hal khad ah oo ka baxa labada dherer.
    • Dabeecad kale oo muhiim ah oo ah las: Nd: YVO4 laser waa, maxaa yeelay waa uniaxial halkii laga dhigi lahaa iskudhaf sare oo dherer ah sida Nd: YAG, waxay soo saartaa oo keliya leys xarriiqsan oo kala qaybsan, sidaas awgeedna looga fogaanayo waxyeellooyinka aan loo baahnayn ee soo noqnoqoshada. In kasta oo nolosha Nd: YVO4 ay qiyaastii 2.7 jeer ka gaaban tahay tan Nd: YAG, haddana waxtarnimadeeda hoose waxay weli u sarrayn kartaa naqshadeynta saxda ah ee saabka laydhka, sababtoo ah waxtarka korantada ee sare.

    Cufnaanta Atoomikada 1.26 × 1020 atoms / cm3 (Nd1.0%)
    Qaab dhismeedka Crystal Halbeegga Cell Zircon Tetragonal, koox bannaan D4h-I4 / amd
    a = b = 7.1193Å, c = 6.2892Å
    Cufnaanta 4.22g / cm3
    Mohs Adag 4-5 (Muraayad u eg)
    Isugeynta Ballaarinta Kuleylka300K =a = 4.43 × 10-6 / K
    c = 11.37 × 10-6 / K
    Isugeynta Kuleylka Kuleylka300K .C0.0523W / cm / K
    .C0.0510W / cm / K
    Dhererka dhererka 1064nm1342nm
    Isugeyn koronto ahaaneed300K dno / dT = 8.5 × 10-6 / K
    dne / dT = 2.9 × 10-6 / K
    Isweydaarsiga qiiqa kicinta 25 × 10-19cm2 @ 1064nm
    Noloshiisa dhalaalaya 90μs (1%)
    Isku dheelitirnaanta nuugista 31.4cm-1 @ 810nm
    Khasaaraha asalka ah 0.02cm-1 @ 1064nm
    Ku guuleysta marinka baaxadda 0.96nm@1064nm
    Sunta layska siidaynayo kala qaybsanaanta; barbar socda dhidibka indhaha (c-dhidibka)
    Diode wuxuu ku shubay indhaha si wax ku ool ah indhaha > 60%

    Halbeegyada Farsamada:

    Chamfer <λ/4 @ 633nm
    <λ @ 633nm <> Dulqaadka cabirka lehL(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) Furitaanka furan
    Bartamaha 95% Fidnaanλ / 8 @ 633 nm, λ / 4 @ 633nm
    shilinta oo ka yar 2mm Tayada oogada
    10/5 Xoqid / Qod halkii MIL-O-1380A Is barbar dhig
    ka fiican 20 ilbidhiqsi arc ka fiican 20 ilbidhiqsi arc
    Chamfer Joogtaynta
    0.15x45deg 1064nmRDaahan0.2%1064nmRDaaweynta HR99.8%T808nm