
Features
- High damage threshold
- High reflectivity (Laser Mirrors)
- High transmittance (Laser Windows)
- Customizable
Our Laser Mirrors and Laser Windows feature high damage thresholds to high output YAG and Ti-sapphire Lasers. To a YAG laser wavelength of 1064 nm (10 ns, 20 Hz, 1 on 1), the world's top-class laser induced damage threshold of 190 J/cm2 has been achieved for the Laser Mirrors, and 140 J/cm2 for the Laser Windows. The Laser Mirrors have a reflectance of 99.9 % or higher, and the Laser Windows have a transmittance of 99.6 % or higher, both offering high performance.
These products contribute to the development of a variety of fields, leading to improvements to quality and workability of laser finishing, the achievement of state-of-the-art medical treatments by laser equipment, analytical applications in the life sciences, and the development of new materials.
The product line includes 36 cost-efficient Laser Mirrors and 12 Laser Windows. They can be customized to suit your needs such as optical characteristics, external shape, and surface figure guaranteed after coating.
Shared Specifications
Substrate material | Laser Mirrors: S-BSL7 Laser Windows: Synthetic quartz |
---|---|
Radius of curvature | ∞ (flat) |
Surface Figure (before coating)*1 | λ/10 or less, λ= 632.8 nm |
Surface Quality (Scratch & Dig) | 10-5 (as per MIL-O13830A) |
Diameter tolerance | +0, -0.1mm |
Thickness tolerance | ±0.1mm |
Wedge | ≤ 5 arc min |
Clear Aperture | Diameter x 0.85 |
- *1: According to demand, the surface figure guarantee after coating is possible.
- ※RoHS compliant (Directive 2011/65/EU + (EU)2015/863 on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment)
Schematic Diagram

Laser Mirror Product List (Table of Code Numbers)
Applicable Laser Wavelength | Incident Angle | Reflectance | External Shape (mm) (Φ:diameter, t:thickness) | |||
---|---|---|---|---|---|---|
Φ12.7t9.53 | Φ25.4t9.53 | Φ50.8t9.53 | Φ76.2t12.7 | |||
1064nm | 0° | R ≧ 99.9%@1064 ± 10nm | LM1064-0-D12.7 | LM1064-0-D25.4 | LM1064-0-D50.8 | LM1064-0-D76.2 |
1064nm | 45° | R ≧ 99.9%@1064 ± 10nm | LM1064-45-D12.7 | LM1064-45-D25.4 | LM1064-45-D50.8 | LM1064-45-D76.2 |
750 ~ 850nm | 0° | R ≧ 99.5%@750 ~ 850nm | LM800-0-D12.7 | LM800-0-D25.4 | LM800-0-D50.8 | LM800-0-D76.2 |
750 ~ 850nm | 45° | R ≧ 99.5%@750 ~ 850nm | LM800-45-D12.7 | LM800-45-D25.4 | LM800-45-D50.8 | LM800-45-D76.2 |
532nm | 0° | R ≧ 99.9%@532 ± 10nm | LM532-0-D12.7 | LM532-0-D25.4 | LM532-0-D50.8 | LM532-0-D76.2 |
532nm | 45° | R ≧ 99.9%@532 ± 10nm | LM532-45-D12.7 | LM532-45-D25.4 | LM532-45-D50.8 | LM532-45-D76.2 |
Upon your request, we can customize the products such as material properties, external shape, curvature, and optical characteristics.
Laser Window Product List (Table of Code Numbers)
Applicable Laser Wavelength | Incident Angle | Transmittance*2 (Single-Sided Reflectance) |
External Shape (mm) (Φ:diameter, t:thickness) | |||
---|---|---|---|---|---|---|
Φ12.7t1.27 | Φ25.4t2.54 | Φ50.8t5.08 | Φ76.2t7.62 | |||
1064nm | 0° | T ≧ 99.6% (Single sided: R < 0.2%@1064 ± 10nm) | LW1064-0-D12.7 | LW1064-0-D25.4 | LW1064-0-D50.8 | LW1064-0-D76.2 |
750 ~ 850nm | 0° | T ≧ 99.0% (Single sided: R < 0.5%@750~850nm) | LW800-0-D12.7 | LW800-0-D25.4 | LW800-0-D50.8 | LW800-0-D76.2 |
532nm | 0° | T ≧ 99.6% (Single sided: R < 0.2%@532 ± 10nm) | LW532-0-D12.7 | LW532-0-D25.4 | LW532-0-D50.8 | LW532-0-D76.2 |
- *2: Transmittance is calculated from single-sided reflectance.
Upon your request, we can customize the products such as material properties, external shape, curvature, and optical characteristics.
Laser Mirror Damage Thresholds and Reflectance (Comparison with Other Companies)

- Note: These values are from Shimadzu measurement by the evaluation method below. The values are not guaranteed.
Laser Window Damage Thresholds (Comparison with Other Companies)

- Note: These values are from Shimadzu measurement by the evaluation method below. The values are not guaranteed.
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