Nd:YVO4 ke kristale e sebetsang ka ho fetisisa ea laser host bakeng sa ho pompa diode har'a likristale tsa laser tsa khoebo tsa hajoale, haholo-holo, bakeng sa matla a tlase ho isa bohareng.Sena ke haholo-holo bakeng sa likarolo tsa eona tsa ho monya le ho ntša metsi tse fetang Nd:YAG.E pompetsoe ke li-laser diode, Nd: kristale ea YVO4 e kenyelelitsoe le likristale tse phahameng tsa NLO (LBO, BBO, kapa KTP) ho fetola tlhahiso khafetsa ho tloha ho infrared e haufi ho ea ho botala, boputsoa, kapa esita le UV.Kenyelletso ena ea ho aha li-lasers tsohle tsa boemo bo tiileng ke sesebelisoa se loketseng sa laser se ka koahelang lits'ebetso tse atileng ka ho fetesisa tsa lasers, ho kenyeletsoa machining, ts'ebetso ea thepa, spectroscopy, tlhahlobo ea wafer, lipontšo tsa mabone, tlhahlobo ea bongaka, khatiso ea laser le polokelo ea data, jj. ho bontšitsoe hore Nd: YVO4 based diode pumped solid state lasers li sebetsa ka potlako limmarakeng tseo ka tloaelo li laoloang ke li-laser tse pholileng tsa metsi le li-laser tse pumped mabone, haholo-holo ha ho hlokahala moralo o kopanetsoeng le tlhahiso ea mokhoa o le mong oa longitudinal.
Melemo ea Nd:YVO4 ho feta Nd:YAG:
• Ho monyela ka makhetlo a mahlano ka matla ho feta bandwidth e pharalletseng ea pompo e pota-potileng 808 nm (ka hona, ho itšetleha ka bophahamo ba maqhubu a pompo ho tlase haholo le tšekamelo e matla ea tlhahiso ea mokhoa o le mong);
• Karolo e ka holimo ho makhetlo a mararo e fehlang khase e khahlehang ka bolelele ba maqhubu a 1064nm;
• Moepa o tlase oa lasing le katleho e phahameng ea letsoapo;
• Joalo ka kristale ea uniaxial e nang le birefringence e kholo, ho tsoa ke polarized linearly feela.
Lintho tsa Laser tsa Nd:YVO4:
• Sebopeho se khahlehang ka ho fetisisa sa Nd:YVO4 ke, ha se bapisoa le Nd:YAG, coefficient ea eona ea ho monya e khōloanyane ka makhetlo a 5 sebakeng se pharaletseng sa bandwidth ea 808nm peak pump wavelength, e ts'oanang feela le maemo a matla a phahameng a laser diode a fumanehang hajoale.Sena se bolela kristale e nyane e ka sebelisoang bakeng sa laser, e lebisang ho sisteme e kopaneng ea laser.Bakeng sa matla a fanoeng, sena se boetse se bolela boemo bo tlase ba matla boo laser diode e sebetsang ho bona, kahoo e lelefatsa bophelo ba laser diode e turang.Bophahamo bo pharaletseng ba ho monya ba Nd:YVO4 bo ka fihlang ho makhetlo a 2.4 ho isa ho a 6.3 ho feta Nd:YAG.Ntle le ho pompa ka mokhoa o atlehileng haholoanyane, ho boetse ho bolela mefuta e mengata e fapaneng ea khetho ea litlhaloso tsa diode.Sena se tla thusa baetsi ba sistimi ea laser bakeng sa mamello e pharalletseng bakeng sa khetho e tlase ea litšenyehelo.
• Nd: kristale ea YVO4 e na le likarolo tse kholo tse susumelitsoeng tsa tlhahiso, ka bobeli ho 1064nm le 1342nm.Ha a-axis e khaola Nd: YVO4 kristale e lutseng ho 1064m, e batla e phahame ka makhetlo a 4 ho feta ea Nd: YAG, ha e ntse e le 1340nm karolo e tsositsoeng ea sefapano e kholo ka makhetlo a 18, e lebisang ts'ebetsong ea CW e fetang ka ho feletseng Nd: YAG. ho 1320nm.Tsena li etsa hore laser ea Nd:YVO4 e be bonolo ho boloka tlhahiso e matla ea mola o le mong maemong a mabeli a maqhubu.
• Sebopeho se seng sa bohlokoa sa Nd: YVO4 lasers ke, hobane ke uniaxial ho e-na le symmetry e phahameng ea cubic e le Nd:YAG, e ntša feela laser polarized linearly, kahoo e qoba liphello tse sa batleheng tsa birefringent ho phetoho ea maqhubu.Leha bophelo ba Nd:YVO4 bo le bokhuts'oane ka makhetlo a 2.7 ho feta ba Nd:YAG, ts'ebetso ea eona ea matsoapo e ntse e ka ba holimo haholo bakeng sa moralo o nepahetseng oa sekoti sa laser, ka lebaka la ts'ebetso ea eona e phahameng ea pompo ea quantum.
Boima ba Atomic | 1.26×1020 liathomo/cm3 (Nd1.0%) |
Crystal StructureCell Parameter | Zircon Tetragonal, sehlopha sa sebaka sa D4h-I4/amd a=b=7.1193Å,c=6.2892Å |
Botenya | 4.22g/cm3 |
Mohs Hardness | 4-5 (joaloka khalase) |
Mocheso oa Katoloso ea Mocheso(300K) | αa=4.43×10-6/K αc=11.37×10-6/K |
Thermal Conductivity Coefficient(300K) | ∥C:0.0523W/cm/K ⊥C:0.0510W/cm/K |
Lasing wavelength | 1064nm,1342nm |
Thermal optical coefficient(300K) | dno/dT=8.5×10-6/K dne/dT=2.9×10-6/K |
Stimulated emission cross-section | 25×10-19cm2 @ 1064nm |
Fluorescent bophelo bohle | 90μs(1%) |
Coefficient ea ho monya | 31.4cm-1 @810nm |
Tahlehelo ea kahare | 0.02cm-1 @1064nm |
Fumana bandwidth | 0.96nm@1064nm |
Ho hlahisoa ha laser polarized | polarization;e tsamaellanang le axis ea optical (c-axis) |
Diode e pompetsoe ka mokhoa o hlakileng ho ea ho katleho ea optical | >60% |
Litekanyetso tsa Tekheniki:
Chamfer | < λ/4 @ 633nm |
Mamello ea mahlakore | (W±0.1mm)x(H±0.1mm)x(L+0.2/-0.1mm)(L<2.5 limilimithara)(W±0.1mm)x(H±0.1mm)x(L+0.5/-0.1mm)(L>2.5 limilimithara) |
Phapang e hlakileng | Bohareng 95% |
Bophatlalatsi | λ/8 @ 633 nm, λ/4 @ 633nm(botenya ka tlase ho 2mm) |
Boleng ba bokaholimo | 10/5 Scratch/Cheka ka MIL-O-1380A |
Ho bapisa | molemo ho feta 20 arc metsotsoana |
Perpendicularity | Perpendicularity |
Chamfer | 0.15x45deg |
Ho roala | 1064nm,R<0.2%;Ho roala ha HR:1064nm,R>99.8%,808nm,T>95% |