Nd:YVO4
Nd:YVO4 crystal waa mid ka mid ah kuwa ugu wax ku oolka badan laysarka martigeliyaha hadda jira ee leysarka diode lasers state adag.Its weyn oo kicinta sii daayo cross-qayb at lasing wavelength, nuugista sare ee nuugista iyo baaxadda nuugista ballaaran ee mawjada dhererka, heerka laser sare ee waxyeellada iyo sidoo kale jirka, indhaha iyo guryaha wanaagsan oo farsamo ka dhigi Nd: YVO4 crystal heer sare ah oo awood sare, xasilloon iyo diode kharash wax ku ool ah bamgareeyay lasers-state adag.
Tilmaamaha iyo Codsiyada
★ Heerarka laasimka hooseeya iyo waxtarka jiirada sare
★ Ku-tiirsanaanta hoose ee hirarka dhererka bamka
★ Qayb weyn oo sii daynta kicisay oo dhererkeedu dhan yahay
★ nuugista sare ee baaxadda mawjada dhererka bamgareynta ballaaran
Si toos ah uniaxial iyo birefringence weyn ayaa siidaaya leysarka
★ Wax soo saarka hal-dheer-dheer iyo naqshad is haysta
★ Diode laser-pumped Nd:YVO4 is haysta laser iyo inta jeer-laba jibaaran yahay cagaarka, casaanka ama leysarka buluuga ah ayaa noqon doona qalabka laser ugu fiican ee machining, qalabaynta, spectroscopy, kormeerka wafer, show iftiin, ogaanshaha caafimaadka, daabacaadda laser iyo kuwa kale ee ugu baahsan. codsiyada
Guryaha Jirka
| Cufnaanta atomiga | ~ 1.37x1020 atamka/cm3 |
| Dhismaha Crystal | Zircon Tetragonal, kooxda booska D4h |
| a=b=7.12, c=6.29 | |
| Cufnaanta | 4.22 g/cm3 |
| Mohs Hardness | Dhalada u eg, ~5 |
| Iskuxidhka Balaadhinta kulaylka | a=4.43x10-6/K, c=11.37x10-6/K |
Guryaha indhaha
(sida caadiga ah 1.1 atm% Nd:YVO4, crystals a-cut)
| Mawjadaha dhaadheer | 914nm, 1064nm, 1342nm |
| Heerarka kuleyliyaha indhaha | dna/dT=8.5x10-6/K, dnc/dT=3.0x10-6/K |
| Qaybta Iskutallaabta ee Qiiqa sii daaya | 25.0x10-19cm2@1064nm |
| Inta uu nool yahay Fluorescent | 90us @808nm, (50us @808 nm 2atm% Nd doped) |
| Iskuxidhka Nuugista | 31.4 cm-1@808nm |
| Dhererka nuugista | 0.32 mm @808nm |
| Khasaare Gudaha ah | In ka yar 0.1% cm-1@1064nm |
| Hel bandwidth | 0.96 nm (257 GHz) @1064nm |
| Sii daynta laser-ka-soo-baxa | p polarization, Barbar socda dhidibka indhaha (c-dhidibka) |
| Diode waxa uu ku soo riixay Optical ilaa Hufnaanta indhaha | >60% |
| Fasalka Crystal | Uniaxial togan, no=na=nb, ne=nc, maya=1.9573, ne=2.1652, @1064nm maya=1.9721, ne=2.1858, @808nm maya=2.0210, ne=2.2560, @532nm |
| Equation Sellmeier (oo loogu talagalay kiristaalo YVO4 saafi ah, λ in um) | no2=3.77834+0.069736/(λ2-0.04724)-0.0108133λ2 ne2=4.59905+0.110534/(λ2-0.04813)-0.0122676λ2 |
Guryaha Laser-ka
(Nd:YVO4 vs ND:YAG)
| Crystal Crystal | Nd doped | σ | α | τ | La | Pth | η |
| (atm%) | (x10-19cm2) | (cm-1) | (cm-1) | (mm) | (mW) | (%) | |
| Nd:YVO4 (la gooyay) | 1.1 | 25 | 31.2 | 90 | 0.32 | 78 | 48.6 |
| 2 | 72.4 | 50 | 0.14 | ||||
| Nd:YVO4 (c-cut) | 1.1 | 7 | 9.2 | 90 | 231 | 45.5 | |
| Nd:YAG | 0.85 | 6 | 7.1 | 230 | 1.41 | 115 | 38.6 |
Tilmaamaha Muhiimka ah
| Halbeegyada | Heerarka ama Dulqaadyada |
| Heerka Dopant | 0.1-5.0 m% |
| Kala firdhisan | Aan la arki karin, oo lagu tijaabiyay leysarka He-Ne |
| Dulqaadka Hanuuninta | ± 0.5 deg |
| Dulqaadka cabbirka | ± 0.1 mm |
| Tayada dusha sare (xoq-qod) | 10-5 |
| Nadiifi Aperture | > 90% |
| Dhulka Dusha sare | < λ/10 @ 633 nm |
| Khaladka Wavefront | <λ/8 @ 633 nm |
| Isbarbar yaac | < 10 arc |
| Qaabaynta wejiyada dhamaadka | Plano / Plano |
| Khasaare Gudaha ah | <0.1% cm-1 |
| Dahaarka | AR 1064 & HT 808: R <0.1% @1064nm, R<5% @ 808nm HR 1064 & HT 808 & HR 532: R>99.8% @1064nm, R<5% @ 808nm, r="">99% @ 532nm AR 1064: R<0.1% @ 1064nm |
Macluumaad dheeraad ah oo ku saabsan nooca kale ee crystals sida Crystal nononlinear [BBO (Beta-BaB2O4), Potassium Titanium Oxide Phosphate (KTiOPO4 ama KTP)], Passive Q-Switch Crystal [Cr: YAG (Cr4+: Y3Al5O12)], EO Crystal Lithium Niobate (LiNbO3), Crystal BBO], Birefringent Crystal [Yttrium Orthovanadate (YVO4), Calcite, Lithium Niobate (LiNbO3), Heerkulka Sare ee Foomka BBO (α-BaB2O4), Hal-abuurka Crystal Quartz, Magnesium Fluoride (MgF2)] xigasho, fadlan xor u noqo inaad nala soo xidhiidho.
