LiNbO3 Crystal
LiNbO3 (Lithium Niobate) kristal bụ ihe eji eme ihe na-eme ka ihe ndị dị n'otu na-ejikọta Njirimara nke pazoelectric, ferroelectric, pyroelectric, nonlinear, electro-optical, photoelastic, wdg. LiNbO3 nwere ezigbo ikuku nkwụsi ike na nguzị kemịkal.
Dịka otu n'ime ihe ngwa anya ndị na-abụghị ihe a na-ahụ anya, LiNbO3 adabara ọtụtụ ngwa ntughari ugboro. Iji maa atụ, a na-ejikarị ya dị ka okpukpu abụọ okpukpu abụọ maka ebili mmiri> 1 μm na oscillators optical parametric (OPOs) nke gbara na 1064 nm yana ngwaọrụ ndị na-agbanwe oge (QPM). N'ihi ọnụọgụ ya nke EO na AO, LiNbO3 A na-ejikwa kristal eme ihe maka ndị na - emegharị mgbanwe, na - ebugharị ebili mmiri, na - efegharị efegharị ikuku, na Q-swinging of Nd: YAG, Nd: YLF na la-Sapphire lasers.
LiNbO3 enwere ike iji ọgwụ dị iche iche dozie ya, dịka Er, Pr, Mg, Fe, wdg, nke na-enye ihe onwunwe ahụ ihe pụrụ iche. Dịka ọmụmaatụ, mbata mmebi nke MgO: LiNbO3 karịrị okpukpu abụọ nke LiNbO dị ọcha3.
Kpọtụrụ anyị maka osisa kachasị maka ngwa nke LiNbO3 kristal.
Ike WISOPTIC -LiNbO3
• Ngwunye dị iche iche emechara maka ngwa dị iche iche.
• Njikwa njikwa ike
• Nyefe ntụkwasị obi
• oke asọmpi ọnụahịa
• Nkwado ndị teknuzu
Nkọwapụta WISOPTIC* - LiNbO3
| Nnukwu Ndidi | 0.1 mm |
| Ndidi | ° 0,5 Celsius |
| Ewepụghị akpụ | <λ / 8 @ 632.8 nm |
| Ogo elu | <20/10 [S / D] |
| Yiri | <20 ” |
| Ikele | ≤ 5 ' |
| Chamfer | ≤ 0.2mm @ 45 ° |
| Ngbanwe Wavefront | <λ / 4 @ 632.8 nm |
| Kọwaa Aperture | > 90% mpaghara etiti |
| Mkpuchi | Ihe mkpuchi AR: R <0.2% @ 1064 nm, R <0.5% @ 532 nm |
| * Ngwaahịa nwere ihe achọrọ pụrụ iche maka ịrịọ arịrịọ. | |
Uru nke MgO: LiNbO3 atụnyere LiNbO3
• arụmọrụ dị elu ugboro abụọ (SHG) maka pulled Nd: YAG (65%) na CW Nd: YAG (45%)
• Nrụpụta dị elu na ngwa nke OPO, OPA, QPM okpukpu abụọ na ebili mmiri agbakwunyere
• Nnukwu elu mmebi fotorefractive mepere emebi
Ngwa nke izizi - LiNbO3
• Ugboro abuo okpukpu abuo maka mbufe> 1 μm
• oscillators Optical parametric (OPO) gbara na 1064 nm
• Ngwaọrụ Quasi-phase (QPM)
• Ntugharị Q-swit (maka Nd: YAG, Nd: YLF na la-saịp taị).
• modulators frasi, ihe na-efegharị efegharị, ụdị ebili mmiri ikuku
Njirimara anụ ahụ - LiNbO3
| Usoro kemịkal | LiNbO3 |
| Ihe owuwu kristal | Ihe Trigonal |
| Otu akara | 3m |
| Ndị otu oghere | R3c |
| Lattice constants | a= 5.148 Å, c= 13.863 Å, Z = 6 |
| Njupụta | 4,628 g / cm3 |
| Ebe ngbanwe | 1255 ° C |
| Akpado okpomoku | 1140 ° C |
| Nessdị siri ike nke Mohs | 5 |
| Traktị na-ekpo ọkụ | 38 W / (m · K) @ 25 Celsius |
| Coefficients ịgbasa ọkụ ikuku | 2.0 × 10-6/ K (// a), 2.2 × 10-6/ K (// c) |
| Hygroscopicity | Abụghị hygroscopic |
Ngwongwo di nma - LiNbO3
| Mpaghara nghọta (na ọkwa “0” transpeance ọkwa) |
400-5500 nm | ||||
| Ntughari uche | 1300 nm | 1064 nm | 632.8 nm | ||
|
ne= 2.146 no= 2.220 |
ne= 2.156 no= 2.232 |
ne= 2.203 no= 2.286 |
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| Coefficients igwe kwụ ọtọ | dno/dT = -0.874 × 10-6/ K @ 1.4 μm dne/dT = 39.073 × 10-6/ K @ 1.4 μm |
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Coefficients Linear oriri |
326 nm |
1064 nm |
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| α = 2.0 / cm | α = 0.001 ~ 0.004 / cm | ||||
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NLO coefficients |
d33 = 34,4 pm / V, d22 = 3.07 pm / V, |
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| Ihe coefficients electro-optic | γNdi33= 32 pm / V, γS33= 31 pm / V, γNdi31= 10 nke abalị / V, γS31= 8.6 pm / V, γNdi22= 6.8 pm / V, γS22= 3.4 pm / V |
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| Volta-ọkara ife ọkụ (DC) | Ọhịa eletriki // z, ọkụ ⊥ z | 3,03 kV | |||
| Ọhịa eletriki // x ma ọ bụ y, ọkụ // z | 4,02 kV | ||||
| Mbibi ụzọ | 100 MW / cm2 @ 1064nm, 10 ns | ||||
