II-VI is a leading photonics designer and vertically integrated manufacturer of optical, laser, and thermal components and subassemblies for the Life Sciences. II-VI offers high-quality precision optics, optical subassemblies, design and engineering services, as well as prototype-to-volume manufacturing across the optical spectrum ranging from UV to VIS to NIR to IR. II-VI has a diversified footprint comprising over 100 coating machines around the globe, allowing for rapid manufacturing response, when and where you need it.
II-VI has a variety of versatile coating technologies, including magnetron sputtering (MS) and ion beam sputtering(IBS), as well as our in-house-developed proprietary coating chambers. Our hard filter coatings are extremely durable and reliable for the high-performance demands of life sciences instrumentation.
- Extensive coating tech: magnetron sputtering (MS), ion beam sputtering (IBS), ion-assisted deposition (IAD),and electron beam evaporation (EB)
- Over 100+ coating chambers worldwide
Engineering Support and Design Expertise
- Experienced coating engineering teams for application specific design optimization
- Custom designs for uniformity and precision wavelength control
- Custom prototyping support
- Bandpass filters
- Shortpass and longpass filters
- Dichroic and polychroic filters
- Notch filters
- Multiband filters
- Narrow laser line filters
Filter Design and Capability
|Substrate Material||All Glass Types|
|Edge Steepness (T 50%-OD>4)||<0.5%|
|Spectral Edge Tolerance||<0.5% Deviation, <0.15% Special Case|
|Blocking||>OD6, Measured Limit: OD7|
|Neutral Density Tolerance||OD +/-5%|
|CWL||+/- 2nm, +/-0.5nm for ideal case life science filters|
|Bandwith||Down to 2 nm|
|Polarization Ratio (S:P)||10000:1|
|LDT||Up to 20 J/cm2 @ 20ns Pulse Rate, 30 J/cm2@10ns Pulse Rate in ideal case|
|Durability||MIL-STD-810:10 Day Humidity, MIL-C-48497A|
Optimized for your specific application and fluorophore, II-VI will work with your team to design a perfectly matched filter set. All excitation, emission, and dichroic filters are hard coated to provide precise wavelength control, industry leading transmission, extremely steep edges and exceptional blocking. Our blocking and transmission pairs are engineered to provide excellent contrast, even in very low light applications. Also, if you need an exact size, ring mount, or edge treatment, we are happy to provide a custom solution.
Fluorescence Filter Set Design
Shortpass and Longpass Filters
Dichroic and Polychroic Filters
Narrow Laser Line Filters
All curves shown above are from actual measured data.