UV Bandpass Filters
Avantier designs and manufactures custom and stock UV bandpass filters that are designed to selectively transmit ultraviolet (UV) light within specific wavelength ranges while blocking out-of-band signals. Our UV bandpass filters allow narrow spectral bands of ultraviolet radiation to pass through while filtering out wavelengths outside this range, from X-ray to far infrared. These filters are critical in applications where precise UV light control is necessary. By tailoring the filters to exact specifications, customers can achieve optimal performance for their unique requirements.
Angle of incidence (AOI) shifts the central wavelength and reduces transmission, so filters perform best near normal incidence. Achieving that kind of precision at scale requires manufacturing capabilities built specifically for UV-range coatings.
Custom UV Bandpass Filter Manufacturing Capability
Substrates | High-quality quartz |
Center Wavelengths | 200 – 400 nm |
FWHM | 10 – 80 nm |
Surface Quality | 20 – 10 |
Laser Damage Threshold | 1 J/cm² @ 532nm, 10 ns pulse width |
- Bandpass Position and Width: CWL and bandwidth are tailored to match application-specific requirements.
- Blocking Range and Level: Blocking range and level are customized to suppress out-of-band UV light in the target environment.
- Substrate, Size, and Shape: Substrate material, size, and shape are configured to fit specific devices, with substrate choice affecting performance and durability.
- Integrated Solutions: Bandpass filters can be paired with excitation filters, emission filters, and dichroic beamsplitters for complete optical system solutions.
Stock UV Bandpass Filters
| Part Number | Size (mm) | Central Wavelength (nm) | FWHM (nm) | Peak Transmittance | OD (nm) | Price (USD) | Delivery Time |
|---|---|---|---|---|---|---|---|
| AVTLH-0001 | φ12.7 | 214 | 14±2 | ＞10% | OD≥3@200-1200 | $100.00 | One Week |
| AVTLH-0002 | φ12.7 | 220 | 14±2 | ＞12% | OD≥3@200-1200 | $90.00 | One Week |
| AVTLH-0003 | φ12.7 | 254 | 14±2 | ＞15% | OD≥3@200-1200 | $90.00 | One Week |
| AVTLH-0004 | φ12.7 | 275 | 14±2 | ＞15% | OD≥3@200-1200 | $90.00 | One Week |
| AVTLH-0005 | φ12.7 | 280 | 14±2 | ＞15% | OD≥3@200-1200 | $90.00 | One Week |
| AVTLH-0006 | φ12.7 | 340 | 10±2 | ＞40% | OD≥3@200-1200 | $90.00 | One Week |
| AVTLH-0104 | φ25.4 | 214 | 14±2 | ＞10% | OD≥3@200-1200 | $130.00 | One Week |
| AVTLH-0105 | φ25.4 | 220 | 14±2 | ＞12% | OD≥3@200-1200 | $115.00 | One Week |
| AVTLH-0106 | φ25.4 | 254 | 14±2 | ＞15% | OD≥3@200-1200 | $115.00 | One Week |
| AVTLH-0107 | φ25.4 | 275 | 14±2 | ＞15% | OD≥3@200-1200 | $115.00 | One Week |
| AVTLH-0108 | φ25.4 | 280 | 14±2 | ＞15% | OD≥3@200-1200 | $115.00 | One Week |
| AVTLH-0109 | φ25.4 | 340 | 10±2 | ＞40% | OD≥3@200-1200 | $115.00 | One Week |
Also available in volume pricing, please contact Avantier for details.
Please note that prices are subject to fluctuation and may change without prior notice. For the most accurate and up-to-date pricing information, kindly contact our office. Additional shipping fees will be calculated and added to your total order.
Key Features and Benefits of UV Bandpass Filters
- Center Wavelength (CWL) Customization: Filters are designed with a specific center wavelength to match the target UV range, typically between 200 nm and 400 nm. The refractive index of the coating materials determines the exact CWL, since it governs how light bends as it passes through each layer.
- Bandwidth (FWHM) Control: Full Width at Half Maximum (FWHM) is adjusted to set the filter’s selectivity. Narrower bandwidths isolate specific wavelengths more precisely, which benefits applications like fluorescence microscopy and UV spectroscopy by improving signal-to-noise ratio.
- Transmission Efficiency: Custom filters are engineered to maximize transmission at the target wavelength, supporting applications where light throughput directly affects system performance.
- Durability and Environmental Resistance: Multi-layer hard coatings protect against fading and aging over time. Filters can be manufactured to meet standards such as MIL-STD-810H and MIL-PRF-13830B for reliability across a range of environmental conditions.
- Optical Density (OD): Optical density is set to control how much out-of-band light is attenuated, determining how effectively unwanted wavelengths are blocked and how much purity the transmitted signal retains.
Applications
- Medical and Biological Research: Fluorescence Microscopy, DNA Analysis, Protein Studies, Pathogen Detection
- Industrial Quality Control: Material Inspection, Component Testing, Automated systems
- Environmental Monitoring: Air Quality Monitoring, Water Quality Analysis, Remote Sensing
- Forensics and Law Enforcement: Crime Scene Investigation, Document Examination, Drug Detection
Optimize Your UV Bandpass Filter Application with Avantiers
Avantier designs and manufactures custom and stock UV bandpass filters built to order for clients in industrial, research, and medicine applications. Avantier’s optical engineers and designers bring years of experience crafting high-performance optical components, and every filter is tested to meet application-specific requirements. Contact us today to place a custom order or set up an initial consultation to discuss your UV bandpass filter application.
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