Nd: YVO4 Crystal
Nd: YVO4 (Neodymium-doped Yttrium Vanadate) yog ib qhov zoo tshaj plaws kev lag luam muaj cov khoom siv rau cov diode-pumped solid-state lasers, tshwj xeeb tshaj yog rau cov lasers nrog tsawg los nruab nrab lub zog ceev. Piv txwv, Nd: YVO4 yog qhov kev xaiv zoo dua Nd: YAG rau ua kom muaj cov nqaj hluav taws xob me me hauv tes taw taw los yog lwm cov lasers. Hauv cov ntawv thov no, Nd: YOV4 muaj qee qhov zoo dua Nd: YAG, piv txwv li siab nqus ntawm pumped laser irradiation thiab loj stimulated emission cross seem.
Nd: YVO4 yog qhov kev xaiv zoo rau tso tawm ntau dhau lawm ntawm 1342 nm, raws li cov kab hluav taws xob muaj zog ntau dua li cov ntawm nws lwm txoj hauv kev. Nd: YVO4 muaj peev xwm ntawm kev ua haujlwm nrog qee cov muaju nonlinear nrog NLO coefficient siab (LBO, BBO, KTP) los tsim teeb los ntawm ze ze infrared rau ntsuab, xiav, lossis txawm UV.
Tiv tauj peb rau qhov kev daws teeb meem zoo tshaj plaws rau koj daim ntawv thov Nd: YVO4 muaju.
WISOPTIC Peev Xwm - Nd: YVO4
• Kev xaiv ntau ntawm Nd-doping piv (0.1% ~ 3.0at%)
• Ntau qhov ntau thiab tsawg (cov taub loj: 16 × 16 hli2; max ntev: 20 hli)
• Kev xev ntau yam (AR, HR, HT)
• Cov ntaub ntawv ua haujlwm siab
• Cov nqi sib tw heev, xa khoom ceev
WISOPTIC Cov Lus Qhia Tshwj Xeeb Cov Lus Qhia* - Nd: YVO4
| Doping Piv | Nd% = 0.2% ~ 3.0at% |
| Qhia Ua Lub Neej Zoo | +/- 0.5 ° |
| Lub Aperture | 1 × 1 hli2~ 16 × 16 hli2 |
| Ntev | 0.02 hli ~ 20 hli |
| Qhov Kev Zam Txim Siab | (W ± 0.1mm) × (H ± 0.1mm) × (L + 0.5 / -0.1mm) (L≥2.5mm) (W ± 0.1mm) × (H ± 0.1mm) × (L + 0.2 / -0.1mm) (L <2.5mm) |
| Lub Hauv Paus | <λ / 8 @ 632,8 nm (L≥2.5mm) <λ / 4 @ 632,8 nm (L <2.5mm) |
| Deg Zoo | <20/10 [S / D] |
| Parallelism | <20 ” |
| Kev Txiav Txim | ≤ 5 ' |
| Tshaj | 0.2 hli @ 45 ° |
| Kis Tau Hloov Wavefront Kev Ntxeev Siab | <λ / 4 @ 632,8 nm |
| Ntshiab Aperture | > 90% hauv nruab nrab cheeb tsam |
| Kev Txheej Txheem | AR @ 1064nm, R <0.1% & HT @ 808nm, T> 95%; HR @ 1064nm, R> 99.8% & HT @ 808nm, T> 95%; HR @ 1064nm, R> 99.8%, HR @ 532 nm, R> 99% & HT @ 808 nm, T> 95% |
| Laser ua kev ceeb toom txog kev puas tsuaj | > 700 MW / cm2 rau 1064nm, 10ns, 10Hz (AR-coated) |
| * Cov khoom lag luam nrog cov tshwj xeeb xav tau thaum thov. | |
Cov Qhov Zoo ntawm Nd: YVO4 (muab piv nrog Nd: YAG)
• Kev siv thoob plaws qhov bandwidth nyob ib ncig ntawm 808 nm (5 zaug ntawm Nd: YAG)
• Qhov loj loj cuam tshuam emission hla ntu ntawm 1064nm (3 zaug ntawm Nd: YAG)
• Kev ntsuas laser qis ua kom puas tsuaj thiab ua haujlwm siab dua
• Txawv los ntawm Nd: YAG, Nd: YVO4 yog cov uniaxial siv lead ua uas muab linearly polarized emission, zam qhov tsis txaus ntshai qhov tsis tshua muaj hluav taws xob birefringence.
Laser Khoom Ntawm Nd: YVO4 vs Nd: YAG
|
Ntiv |
Doping （atm%） |
σ |
(cm-1) |
τ (μs) |
Lα (hli) |
Pth (mW) | |
ηs (%) |
|
Nd: YVO4 |
1.0 |
25. 25 |
31.2 |
90 |
0.32 |
30. 30 |
52 |
|
2.0 |
25. 25 |
72.4 |
50. |
0.14 |
78 |
48.6 |
|
|
Nd: YVO4 |
1.1 |
7. Peb muaj 7 |
9.2 |
90 |
- |
231 |
45,5 |
|
Nd: YAG |
0.85 |
6 |
7.1 |
230 |
1.41 |
115 |
38.6 |
| σ - stimulated emission cross-section, α - kev nqus coefficient, τ - lub neej fluorescent Lα - haum ntev, Pth - pib siv zog, ηs - twj tso kua mis quantum efficiency |
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Cov Khoom Uas Lub Cev - Nd: YVO4
| Atomic ceev | 1.26x1020 20 atoms / cm2 (Nd% = 1.0%) |
| Crystal qauv | Zircon tetragonal, qhov chaw pab pawg D4h-I4 / amd a = b = 7.1193 Å, c = 6.2892 Å |
| Qhov ceev | 4.22 g / cm2 |
| Mohs hardness | 4.6 ~ 5 (zoo li iav) |
| Thermal expansion coefficient (300K) | αa= 4.43x10-6/ K, αc= 11.37x10-6/ K |
| Thermal conductivity coefficient (300K) | || c: 5.23 W / (m · K); C: 5.10 W / (m · K) | |
| Melting taw tes | 1820 ℃ |
Optical Properties - Nd: YVO4
| Lasing wavelength | 914 nm, 1064 nm, 1342 nm |
| Cov nqe lus xis siab | zoo uniaxial, no= na= nb ne= nc no= 1.9573, ne= 2.1652 @ 1064 nm no= 1.9721, ne= 2.1858 @ 808 nm no= 2.0210, ne= 2.2560 @ 532 nm |
| Thermal optical coefficient (300K) | dno/dT=8.5x10-6/ K, dne/dT=3.0x10-6/ K |
| Raug emission hla-seem | 25.0x10-19 cm2 @ 1064 nm |
| Fluorescent lub neej | 90 s (1.0at% Nd doped) @ 808 nm |
| Kev rho tawm coefficient | 31,4 cm-1 @ 808 nm |
| Qhov kev ncua ntev | 0.32 hli @ 808 nm |
| Kev mob siab rau poob | 0.02 cm-1 @ 1064 nm |
| Nce bandwidth | 0.96 nm (257 GHz) @ 1064 nm |
| Polarized laser emission | mus tib seem rau optic axis (c-axis) |
| Diode pumped kho qhov muag kom qhov ua tau zoo | > 60% |
|
Polarized emission |
Ncaj ncees |
