| W, mm: |
4 |
| H, mm: |
4 |
| L, mm: |
20 |
| θ: |
90 |
| φ: |
11.6 |
| Coating: |
AR/AR @ 1064 + 532 nm |
| Főkategória: |
Optics |
| Alkategória1: |
Nonlinear and Laser Crystals |
| Alkategória2: |
Nonlinear Crystals |
| Alkategória3: |
Lithium Triborate – LBO Crystals |
| Flatness: |
λ/8 @ 633 nm |
| Parallelism: |
< 20 arcsec |
| Perpendicularity, arcmin: |
< 5 |
| Angle tolerance, arcmin: |
< 30 arcmin |
| Aperture tolerance, mm: |
± 0,1 |
| Surface quality: |
10/5 scratch & dig per MIL-O-13830A |
| Clear Aperture: |
90% of full aperture |
| Chemical formula: |
LiB3O5 |
| Crystal structure: |
orthorhombic, mm2 |
| Optical symmetry: |
Negative biaxial |
| Space group: |
Pna21 |
| Density, g/cm3: |
2.47 |
| Transparency region at “0” transmittance level, nm: |
155 – 3200 |
| Mohs' hardness: |
6 |
| Optical homogeneity: |
∂n = 10-6 cm-1 |
| Linear absorption coefficient at 1064 nm: |
< 0.01 % cm-1 |
| Refractive indices nx at 1064 nm: |
1.5656 |
| Refractive indices nx at 355 nm: |
1.5971 |
| Refractive indices nx at 532 nm: |
1.5785 |
| Refractive indices nz at 1064 nm: |
1.6055 |
| Refractive indices nz at 355 nm: |
1.643 |
| Refractive indices nz at 532 nm: |
1.6212 |
| Refractive indices ny at 1064 nm: |
1.5905 |
| Refractive indices ny at 355 nm: |
1.6275 |
| Refractive indices ny at 532 nm: |
1.6065 |
| Sellmeier equations (λ, μm) nx2: |
nx2 = 2,4542 + 0,01125 / (λ2 – 0,01135) – 0,01388 λ2 |
| Sellmeier equations (λ, μm) ny2: |
ny2 = 2,5390 + 0,01277 / (λ2 – 0,01189) – 0,01849 λ2
+ 4,3025 × 10-5λ4 - 2,9131 × 10-5λ6 |
| Sellmeier equations (λ, μm) nz2: |
nz2 = 2,5865 + 0,01310 / (λ2 – 0,01223) – 0,01862 λ2
+ 4,5778 × 10-5λ4 - 3,2526 × 10-5λ6 |
| Phase matching range Type 1 SHG, nm: |
554 – 2600 |
| Phase matching range Type 2 SHG, nm: |
790 – 2150 |
| NCPM SHG at 1064 nm Type 1 temperature: |
149 °C |
| NCPM SHG at 1319 nm Type 2 temperature: |
43 °C |
| NCPM SHG temperature dependence: |
Type 1 range 950 – 1300 nm : T1 = - 1893.3λ4 + 8886.6λ3 – 13019.8λ2 + 5401.5λ + 863.9
Type 1 range 1300 – 1800 nm : T2 = 878.1λ4 – 6954.5λ3 + 20734.2λ2 – 26378λ + 12020
ype 2 range 1100 – 1500 nm : T3 = - 21630.6λ4 + 112251λ3 – 220460λ2 + 194153λ – 64614 |
| Walk-off angle: |
7 mrad (Type 1 SHG 1064 nm) |
| Angular acceptance: |
6,5 mrad×cm (Type 1 SHG 1064 nm)
248 mrad×cm (Type 1 NCPM SHG 1064 nm) |
| Thermal acceptance: |
6,4 K×cm (Type 1 SHG 1064 nm) |
| Nonlinearity coefficients: |
d31 = (1,05±0,09) pm/V
d32 = -(0,98±0,09) pm/V
d33 = (0,05±0,006) pm/V |
| Effective nonlinearity expressions, XY plane: |
dooe = d32 cosφ |
| Effective nonlinearity expressions, YZ plane: |
doeo = deoo = d31 cosθ |
| Expansion coefficients: |
αx = 10,8 × 10-5K-1
αy = -8,8 × 10-5K-1
αz = 3,4 × 10-5K-1 |
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