Nd: YVO4 Crystals

Atomic ntom ntom:1.26x1020 atoms/cm3 (Nd1.0%)

Crystal Structure Cell Parameter:Zircon Tetragonal, chaw pawg D4h-I4/amd a=b=7.1193Å,c=6.2892Å

Ceev:4.22g / cm3

Mohs Hardness:4-5 (zoo li iav)

Thermal Expansion Coefficient (300K):αa = 4.43x10-6/K αc=11.37x10-6/K

Thermal Conductivity Coefficient (300K):∥C: 0.0523W/cm/K
⊥C: 0.0510W/cm/K

Laser wavelength:1064 nm, 1342 nm

Thermal optical coefficient (300K):dno/dT = 8.5 × 10-6/K
dne/dT = 2.9 × 10-6/K

Stimulated emission hla ntu:25 × 10-19cm2 @ 1064nm

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Cov yam ntxwv yooj yim

Nd: YVO4 yog qhov ua tau zoo tshaj plaws laser host siv lead ua rau diode siv ntawm cov khoom siv laser tam sim no, tshwj xeeb tshaj yog rau qis rau nruab nrab lub zog ceev.Qhov no feem ntau yog rau nws qhov nqus thiab emission nta tshaj Nd:YAG.Pumped los ntawm laser diodes, Nd:YVO4 siv lead ua tau muab tso nrog siab NLO coefficient crystals (LBO, BBO, los yog KTP) zaus-hloov cov zis los ntawm qhov ze infrared mus rau ntsuab, xiav, los yog txawm UV.Qhov kev koom ua ke no los tsim txhua lub xeev cov lasers yog ib qho zoo tshaj plaws laser cuab yeej uas tuaj yeem npog cov kev siv ntau tshaj plaws ntawm lasers, nrog rau kev siv tshuab, kev ua cov khoom, spectroscopy, wafer tshuaj xyuas, teeb pom kev zoo, kuaj mob, laser luam ntawv, thiab cov ntaub ntawv khaws cia, thiab lwm yam. tau pom tias Nd: YVO4 raws li diode pumped khoom lub xeev lasers yog ceev ceev nyob rau hauv lub lag luam ib txwm dominated los ntawm dej-txias ion lasers thiab teeb-pumped lasers, tshwj xeeb tshaj yog thaum compact tsim thiab ib leeg-longitudinal-hom outputs yuav tsum tau.
Nd:YVO4 qhov zoo dua Nd:YAG:
• Raws li qhov siab li tsib npaug ntau dua qhov nqus tau zoo tshaj qhov dav siv bandwidth nyob ib ncig ntawm 808 nm (yog li ntawd, qhov kev vam khom ntawm lub tshuab nqus dej wavelength yog qis dua thiab muaj zog txaus nyiam rau ib hom tso zis);
• Raws li loj li peb zaug loj dua emission emission cross-section ntawm lasing wavelength ntawm 1064nm;
• Tsawg lasing pib thiab kev ua haujlwm siab dua;
• Raws li ib tug uniaxial siv lead ua nrog ib tug loj birefringence, lub emission tsuas yog ib tug linearly polarized.
Laser Properties ntawm Nd: YVO4:
• Ib tus cwj pwm ntxim nyiam tshaj plaws ntawm Nd: YVO4 yog, piv nrog Nd: YAG, nws 5 npaug loj dua qhov nqus coefficient nyob rau hauv qhov dav dua qhov nqus bandwidth nyob ib ncig ntawm 808nm ncov twj tso kua mis wavelength, uas tsuas yog phim tus qauv ntawm lub zog laser diodes tam sim no muaj.Qhov no txhais tau hais tias ib tug me me siv lead ua uas yuav siv tau rau lub laser, ua rau ib tug ntau compact laser system.Rau ib lub zog tso zis, qhov no kuj txhais tau hais tias lub zog qis dua uas lub laser diode ua haujlwm, yog li txuas ntxiv lub neej ntawm kim laser diode.Qhov dav dav nqus bandwidth ntawm Nd:YVO4 uas yuav ncav cuag 2.4 txog 6.3 npaug ntawm Nd:YAG.Dhau li ntawm kev siv ntau dua, nws kuj txhais tau tias muaj ntau yam kev xaiv ntawm diode specifications.Qhov no yuav pab tau rau laser system makers rau dav dav rau kev xaiv tus nqi qis.
• Nd:YVO4 siv lead ua tau loj dua emission hla ntu, ob qho tib si ntawm 1064nm thiab 1342nm.Thaum a-axis txiav Nd:YVO4 siv lead ua lasing ntawm 1064m, nws yog kwv yees li 4 npaug siab dua li ntawm Nd:YAG, thaum ntawm 1340nm qhov kev txhawb nqa hla ntu yog 18 npaug loj dua, uas ua rau kev ua haujlwm CW ua tiav Nd:YAG. ua 1320nm.Cov no ua rau Nd: YVO4 laser tau yooj yim los tswj kom muaj zog ib kab emission ntawm ob lub wavelengths.
• Lwm tus cwj pwm tseem ceeb ntawm Nd:YVO4 lasers yog, vim hais tias nws yog ib qho uniaxial es tsis yog lub siab symmetry ntawm cubic li Nd:YAG, nws tsuas emits ib linearly polarized laser, yog li tsis txhob undesired birefringent cuam tshuam rau lub zaus conversion.Txawm hais tias lub neej ntawm Nd: YVO4 yog kwv yees li 2.7 lub sij hawm luv dua li ntawm Nd: YAG, nws txoj kab nqes kev ua haujlwm tseem tuaj yeem siab heev rau kev tsim kom zoo ntawm laser kab noj hniav, vim nws cov twj tso kua mis siab quantum efficiency.

Atomic ntom ntom	1.26 × 1020 atoms / cm3 (Nd1.0%)
Crystal StructureCell Parameter	Zircon Tetragonal, qhov chaw pab pawg D4h-I4 / amd a=b=7.1193Å,c=6.2892Å
Qhov ntom	4.22g / cm3
Mohs Hardness	4-5 (zoo li iav)
Thermal Expansion Coefficient(300 K)	Luas = 4.43 x 10-6/K αc = 11.37 × 10-6/K
Thermal Conductivity Coefficient(300 K)	∥ C:0.0523 W / cm / K ⊥C:0.0510 W / cm / K
Lasing wavelength	1064nm ua,1342nm ua
Thermal optical coefficient(300 K)	dno/dT = 8.5 × 10-6/K dne/dT = 2.9 × 10-6/K
Stimulated emission hla ntu	25 × 10-19cm2 @ 1064nm
Fluorescent lub neej	90μs (1%)
Absorption coefficient	31.4cm-1 @810nm
Intrinsic poob	0.02cm-1 @1064nm
Tau txais bandwidth	0.96nm @ 1064nm
Polarized laser emission	polarization;parallel rau optical axis (c-axis)
Diode pumped optical rau kho qhov muag efficiency	> 60%

Technical Parameters:

Chamfer	<λ/4 @ 633nm
Dimensional kam rau ua	(W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2 / - 0.1mm)(L＜2.5 hli)(W ± 0.1mm) x (H ± 0.1mm) x (L + 0.5 / - 0.1mm)(L＞2.5 hli)
Clear aperture	Central 95%
Flatness	λ/8 @ 633nm, λ/4 @ 633nm(tickness tsawg dua 2 hli)
Nto zoo	10/5 Scratch/Dig rau MIL-O-1380A
Parallelism	zoo tshaj 20 arc vib nas this
Perpendicularity	Perpendicularity
Chamfer	0.15 x 45 deg
Txheej	1064nm ua,R＜0.2%.HR Txheej:1064nm ua,R＞99.8%,808nm ua,T＞95%