Materials: UV grade fused silica (UVFS), CaF2 crystal,
N-SF10, N-SF11, N-SF57, N-SF66, N-BK7, N-LAK21 or N-LAF35 glass.
Become a Brewster prism at the proper apex angle with an extremely
small loss for p-polarized beam.
Widely used for precise GVD compensation in femtosecond lasers.
| Model | Name | material | angle | attr_size | Price | Availability | Action |
| IPQ3300-69.0 | Isosceles Prism, Material: UV Fused Silica, A=B=C=30mm, Apex angle =69.0° | UVFS | 69.0° | A=B=C=30mm | USD$299.00 | ||
| IPQ3300-67.4 | Isosceles Prism, Material: UV Fused Silica, A=B=C=30mm, Apex angle =67.4° | UVFS | 67.4° | A=B=C=30mm | Ask | Out Of Stock | |
| IPQ3500-69.0 | Isosceles Prism, Material: UV Fused Silica, A=B=C=50mm, Apex angle =69.0° | UVFS | 69.0° | A=B=C=50mm | Ask | ||
| IPQ1815-68.9 | Isosceles Prism, Material: UV Fused Silica, A=B=18.2mm, C=15.0mm, Apex angle =68.9° | UVFS | 68.9 | A=B=18.2mm, C=15.0mm | USD$199.00 | Out Of Stock | |
| IPF3300-60.6 | Isosceles prism, Material: SF10, A=B=C=30.0mm, Apex angle =60.6° | SF10 | 60.6° | A=B=C=30mm | USD$459.00 | Out Of Stock | |
| IPS3300-59.0 | Isosceles prism, Material: N-SF11, A=B=C=30.0mm, Apex angle =59.0° | N-SF11 | 59.0° | A=B=C=30mm | USD$259.00 | Out Of Stock | |
| IPN3300-57.5 | Isosceles prism, Material: N-SF57, A=B=C=30.0mm, Apex angle =57.5° | N-SF57 | 57.5° | A=B=C=30mm | USD$449.00 | ||
| IPH3300-55.5 | Isosceles prism, Material: N-SF66, A=B=C=30.0mm, Apex angle =55.5° | N-SF66 | 55.5° | A=B=C=30mm | USD$539.00 | Out Of Stock | |
| IPB3300-67.0 | Isosceles prism, Material: N-BK7, A=B=C=30.0mm, Apex angle =67.0° | N-BK7 | 67.0° | A=B=C=30mm | USD$299.00 | ||
| IPB3500-67.0 | Isosceles prism, Material: N-BK7, A=B=C=50.0mm, Apex angle =67.0° | N-BK7 | 67.0° | A=B=C=50mm | Ask | ||
| IPC3300-69.9 | Isosceles prism, Material: CaF2, A=B=C=30.0mm, Apex angle =69.9° | CaF2 | 69.9° | A=B=C=30mm | USD$839.00 | Out Of Stock | |
| IPC3300-68.8 | Isosceles prism, Material: CaF2, A=B=C=30.0mm, Apex angle =68.8° | CaF2 | 68.8° | A=B=C=30mm | USD$839.00 | Out Of Stock | |
| IPK3300-63.0 | Isosceles prism, Material: N-LAK21, A=B=C=30.0mm, Apex angle =63.0° | N-LAK21 | 63.0° | A=B=C=30mm | Ask | Out Of Stock | |
| IPL3150-58.9 | Isosceles prism, Material: N-LAF35, A=B=C=15.0mm, Apex angle =58.9° | N-LAF35 | 58.9° | A=B=C=15mm | Ask | Out Of Stock | |
| IPL3300-58.9 | Isosceles prism, Material: N-LAF35, A=B=C=30.0mm, Apex angle =58.9° | N-LAF35 | 58.9° | A=B=C=30mm | Ask | Out Of Stock |
Basic Properties of Fused Silica Glass:
| Transparency Range: 185 - 2300 nm |
|
| Density: 2.2 g/cm3 | |
| Thermo-Optic Coefficients: dn/dT= 1.0 x 10-5 /oC |
|
| Optical Homogeneity: Δn < 10-6 /cm | |
| Mohs Hardness: 7 | |
| Thermal Conductivity: 1.4 W/m/K | |
| Thermal Expansion Coefficient: | α = 0.54 x 10-6 /K |
|
Sellmeier Equations: (λ in μm) : |
|
| Wavelength (nm) | Index of refraction |
| 1550 | 1.4440 |
| 1320 | 1.4466 |
| 1064 | 1.4496 |
| 800 | 1.4533 |
| 632.8 | 1.4570 |
| 532 | 1.4607 |
| 400 | 1.4701 |
| 355 | 1.4761 |
| 266 | 1.4997 |
| 213 | 1.5352 |
Basic Properties of SF11 and N-SF11 Glass:
|
SF11 |
N-SF11 (RoHS) | |
| Transparency Range | 410 - 2000 nm | 410 - 2000 nm |
| Density | 4.8 g/cm3 | 3.2 g/cm3 |
| Thermo-Optic Coefficients (dn/dT) | 6.6 x 10-6 /oC | -2.1 x 10-6 /oC |
| Optical Homogeneity | Δn < 10-4 /cm | Δn < 10-4 /cm |
| Knoop Hardness | 450 | 615 |
| Abrasion Aa | N/A | 187 |
| Thermal Expansion Coefficient | 8.2 x 10-6 /K | 9.4 x 10-6 /K |
| Thermal Conductivity | 0.74 W/m/K | 0.95 W/m/K |
|
Sellmeier Equations |
n2=1+1.73848λ2/( λ2 - 0.013607 ) + 0.31117λ2/(λ2-0.061596)+1.17491 λ2/(λ2-121.92271) | n2=1+1.73760λ2/( λ2 - 0.013189) + 0.31375λ2/(λ2-0.062307)+ 1.89878 λ2/(λ2-155.23629) |
| Wavelength (nm) | Refractive Index | |
| 1550 | 1.7447 | 1.7434 |
| 1320 | 1.7486 | 1.7478 |
| 1064 | 1.7543 | 1.7539 |
| 800 | 1.7648 | 1.7646 |
| 632.8 | 1.7786 | 1.7786 |
| 532 | 1.7948 | 1.7948 |
Transmission curve of SF11:
Isosceles Prism Specifications:
Dimension Tolerance: +0.0, - 0.2 mm
Flatness: λ/6 at 632.8 nm
Surface Quality: 40-20 scratch and dig
Clear Aperture: > 80%
Bevel: 0.2 mm to 0.5 mm x 45o
Apex Angle Tolerance: < 5'
Apex angle vs. Brewster Wavelength:
Note: The surface loss of p-polarized light incident at ~ Brewster angle is not sensitive to the Apex angle.
|
Material |
Apex Angle Φ (deg) |
| Fused silica | 69.1 (Brewster @ 800 nm) |
| 68.9 (Brewster @ 600 nm) |
|
| N-SF11 | 59.0 (Brewster @ 800 nm) |
| N-SF10 | 60.6 (Brewster @ 800 nm) |
| N-BK7 | 67.0 (Brewster @ 800 nm) |
| CaF2 | 69.9 (Brewster @ 800 nm) |
| 68.8 (Brewster @ 266 nm) |
|
| N-LAK21 | 63.0 (Brewster @ 400 nm) |
| N-LAF35 | 58.9 (Brewster @ 400 nm) |
GVD and TOD @ 800nm:
| Material | GVD @ 800 nm | TOD @ 800 nm | Apex Angle | Refractive Index @ 800 nm |
|---|---|---|---|---|
| UVFS | -16.5 fs2/cm | -20 fs3/cm | 69.1° | 1.453 |
| SF10 | -97.5 fs2/cm | -388 fs3/cm | 60.6° | 1.711 |
| CaF2 | -5 fs2/cm | -12 fs3/cm | 69.9° | 1.430 |
