Alfa Chemistry helps customers with professional optical manufacturing. We put a lot of effort into developing solutions that are affordable and satisfy our clients' needs. Whether you need custom precision optical components, custom optical coatings or expert application engineering to optimize your design, we can create the ideal solution for your unique optical challenges.
Alfa Chemistry is dedicated to assuring the quality of the process and the product at every stage. Our capabilities are derived from our specialized equipment, along with our years of experience and technical knowledge. This combination has resulted in industry-leading coating, manufacturing and metrology capabilities. With these benefits, we guarantee that optical goods are produced to the highest quality standards throughout the whole manufacturing process.
Optical Manufacturing
Alfa Chemistry can provide precise optics for clients to strict requirements in a range of forms and sizes thanks to its years of expertise and understanding. Our extensive in-house machining capabilities allow us to manufacture custom substrates in a wide range of material types, shapes, sizes and specifications.
With regard to a range of materials, such as optical glass, fused silica, optical crystals (CaF2 and MfF2), and optical ceramics (spinel), we have expertise and experience in these fields. We are familiar with the behavior of substrate materials and plan the most efficient configurations and process sequences accordingly.
Click here to learn about our custom services for precision optical components.
Optical Coatings
To satisfy the distinct spectral, mechanical, laser damage, and environmental requirements of our clients, Alfa Chemistry uses electron beam, IBS, and ion assisted deposition coating processes. A whole range of coatings, such as anti-reflective, broadband AR, short- and long-wave pass filters, high reflectance, are available from us. In a clean room, we check and clean our optics, and we also employ additional methods to create flawless surfaces.
| General Coating Capabilities | |
|---|---|
| Functional coatings | HR % Reflectance / AR % Reflectance / Highly reflective metal / Anti-reflective multi-band / Highly reflective dielectric / Polarization beam splitter / Metal coating |
| Wavelength Range | DUV to NIR: 193 nm to 3 microns |
| Reflectivity | 0.2～99.5% |
| Incidence Angle | 0-60° |
| Laser Damage Threshold (LIDT) | Average of 26 J/cm2 @ 1064nm @ 20ns pulse width @ 0° AOI Average of 35 J/cm2 @ 1053nm @ 20ns pulse width @ 45° AOI Average of 8.5 J/cm2 @ 308nm @ 152ns pulse width @ 0-45° AOI |
| Deposition Technology | Electron Beam Deposition / Ion Assisted Deposition Electron Beam / Magnetron Sputtering / IBS / Ion Assisted Deposition IBS |
| Cleaning Technology | Solvent Wipe / Spin Clean |
| Environmental Testing | Temperature Impact Test / Tape Test / Pressure Test / Abrasion Test / Heat and Moisture Test |
Click here to learn about our custom precision optical coating services.
Optical Metrology
Modern metrology tools are used by Alfa Chemistry to confirm the details of customized optical goods. Every stage of processing makes use of metrology to make sure that parts adhere to the strictest quality standards.
- To precisely measure all flatness criteria, we use a bespoke reference plane with a 6-inch diameter and 1/140lamda resolution.
- To confirm spectral parameters, we employ a lamda 900 Perkin Elmer and lamda 1050 spectrophotometer.
- We test a variety of environmental conditions in accordance with Mil Spec requirements.
