Nd:YVO4
Nd: kristale ea YVO4 ke e 'ngoe ea kristale e sebetsang ka ho fetesisa ea laser e teng hajoale bakeng sa diode laser pumped solid state lasers. Karolo ea eona e kholo e tsosolositsoeng ea phallo ea phallo ho lasing wavelength, coefficient e phahameng ea ho monya le bandwidth e absorption ka bophara ho pump wavelength, sekhahla se phahameng sa laser e bakiloeng ke tšenyo hammoho le thepa e ntle ea 'mele, ea mahlo le ea mochini e etsa Nd:YVO4 kristale e ntle haholo bakeng sa matla a phahameng, a tsitsitseng le diode e sebetsang hantle e pompelwe ka lasers solid-state.
Likarolo le Lisebelisoa
★ Moemo o tlase oa ho lasing le katleho e phahameng ea letsoapo
★ Ho itšetleha ho tlase ho bolelele ba pompo
★ Karolo e kholo e hlohlellelitsoeng ho tsoa sebakeng se pharalletseng ka bolelele ba maqhubu
★ Mono o phahameng holim'a sekhahla se pharaletseng sa ho pompa maqhubu
★ Optically uniaxial le birefringence e kholo e ntša laser polarized
★ Bakeng sa tlhahiso e le 'ngoe ea longitudinal-mode le moralo o kopaneng
★ Diode laser-pumped Nd:YVO4 compact laser le laser ea eona ea makhetlo a mabeli e tala, e khubelu kapa e putsoa e tla ba lisebelisoa tse loketseng tsa laser tsa machining, lisebelisoa tsa thepa, spectroscopy, tlhahlobo ea liphaephe, pontšo e khanyang, tlhahlobo ea bongaka, khatiso ea laser le tse ling tse atileng ka ho fetisisa. lits'ebetso
Thepa ea 'Mele
| Boima ba Atomic | ~1.37x1020 liathomo/cm3 |
| Sebopeho sa Crystal | Zircon Tetragonal, sehlopha sa sebaka sa D4h |
| a=b=7.12, c=6.29 | |
| Botenya | 4.22 g/cm3 |
| Mohs Hardness | Joalo ka khalase, ~5 |
| Mocheso oa Katoloso ea Mocheso | a=4.43x10-6/K, c=11.37x10-6/K |
Thepa ea Optical
(hangata bakeng sa 1.1 atm% Nd:YVO4, likristale tse sehiloeng)
| Lasing Wavelengths | 914nm, 1064nm, 1342nm |
| Thermal Optical Coefficient | dna/dT=8.5x10-6/K, dnc/dT=3.0x10-6/K |
| Stimulated Emission Cross-Section | 25.0x10-19cm2@1064nm |
| Fluorescent Lifetime | 90us @808nm, (50us @808 nm bakeng sa 2atm% Nd doped) |
| Coefficient ea ho monya | 31.4 cm-1@808nm |
| Bolelele ba ho monya | 0.32 limilimithara @808nm |
| Tahlehelo ea ka hare | Ka tlase ho 0.1% cm-1@1064nm |
| Fumana Bandwidth | 0.96 nm (257 GHz) @1064nm |
| Polarized Laser Emission | p polarization, Parallel to optic axis (c-axis) |
| Diode Pumped Optical to Optical Effective | >60% |
| Sehlopha sa Crystal | Positive uniaxial, no=na=nb, ne=nc, no=1.9573, ne=2.1652, @1064nm no=1.9721, ne=2.1858, @808nm no=2.0210, ne=2.2560, @532nm |
| Sellmeier Equation(bakeng sa likristale tsa YVO4 tse hloekileng, λ ka um) | no2=3.77834+0.069736/(λ2-0.04724)-0.0108133λ2 ne2=4.59905+0.110534/(λ2-0.04813)-0.0122676λ2 |
Thepa ea Laser
(Nd:YVO4 vs Nd:YAG)
| Crystal ea laser | Ke hlotsoe | σ | α | τ | La | Pth | η |
| (atm%) | (x10-19cm2) | (cm-1) | (cm-1) | (mm) | (mW) | (%) | |
| Nd:YVO4(a-cut) | 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 |
Litlhaloso Tse Bohlokoa
| Mekhahlelo | Mekhahlelo kapa Mamello |
| Boemo ba Dopant | 0.1-5.0 ho m% |
| Ho hasanya | E sa bonahaleng, e hlahlobiloe ka laser ea He-Ne |
| Boikutlo Mamello | ± 0.5 deg |
| Mamello ea Dimensional | ± 0.1 limilimithara |
| Boleng ba Bokaholimo (Scratch-Dig) | 10-5 |
| Aperture e Hlakileng | 90% |
| Bophahamo bo Phahameng | < λ/10 @ 633 nm |
| Phoso ea Wavefront | < λ/8 @ 633 nm |
| Ho bapisa | <10 arcsec |
| Phetoho ea lifahleho | Plano / Plano |
| Tahlehelo ea ka hare | <0.1%cm-1 |
| Liaparo | 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 |
Bakeng sa boitsebiso bo eketsehileng ka mefuta e meng ea kristale e kang Nonlinear Crystal [BBO (Beta-BaB2O4), Potassium Titanium Oxide Phosphate (KTiOPO4 kapa KTP)], Passive Q-Switch Crystal [Cr: YAG (Cr4+:Y3Al5O12)], EO Crystal [ Lithium Niobate (LiNbO3), BBO crystal], Birefringent Crystal [Yttrium Orthovanadate (YVO4), Calcite, Lithium Niobate (LiNbO3), Foromo e Phahameng ea Mocheso BBO (α-BaB2O4), Single Synthetic Crystal Quartz, Magnesium Fluoride] (MgF2) qotsa, ka kopo ikutloe u lokolohile ho ikopanya le rona.
