BP580nm Bandpass Filter | FWHM 3nm, Thickness 2.0mm, OD5 Blocking
The BP580-3nm-2.0mm bandpass filter represents the pinnacle of ultra-narrow spectral filtering technology, delivering unprecedented wavelength precision for the most demanding optical applications. This extraordinary bandpass filter features an exceptionally narrow 3nm full width at half maximum (FWHM) centered at 580nm, providing extreme wavelength discrimination for laser line cleanup, Raman spectroscopy, and single-molecule detection. With transmission greater than 80% at 580nm and blocking performance exceeding optical density 5 (transmission less than 0.01%) across 350-1100nm, this filter enables unparalleled signal purity in complex spectral environments. The robust 2.0mm substrate ensures mechanical stability and high laser damage threshold for demanding applications. Manufactured by OPTOStokes using state-of-the-art high precision coating technology, this filter meets the extreme requirements of advanced research and precision instrumentation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Center Wavelength (CWL) | 580nm ± 1nm |
| Peak Transmission | Greater than 80% at 580nm |
| Full Width at Half Maximum (FWHM) | 3nm ± 1nm |
| Blocking Range | 350-1100nm at T less than 0.01% |
| Optical Density (OD) | Greater than 5.0 (equivalent to T less than 0.01%) |
| Substrate Thickness | 2.0mm |
| Surface Quality | 60/40 scratch-dig per MIL-PRF-13830B |
| Coating Type | Hard ion-assisted deposition, advanced multi-cavity design |
| Part Number | 20223091 |
Key Performance Features
This laser bandpass filter achieves performance levels that position it among the most advanced optical filters available worldwide. The extraordinary 3nm FWHM represents extreme wavelength selectivity, enabling isolation of individual laser lines and separation of spectral features that would be completely indistinguishable with conventional filters. This level of spectral precision is essential for laser line cleanup, high-resolution Raman spectroscopy, and advanced spectroscopy applications demanding ultimate wavelength discrimination.
The remarkable blocking performance with transmission below 0.01% (optical density greater than 5) represents the highest level of rejection commercially available. This translates to greater than 100,000-fold suppression of unwanted wavelengths, ensuring absolutely clean signal detection even in the presence of intense laser sources or bright background emissions. The comprehensive OD5 blocking extends across the full 350-1100nm range, eliminating all interference from UV through near-infrared regions.
Peak transmission exceeding 80% at the precise 580nm center wavelength ensures efficient signal collection despite the extremely narrow passband. This represents exceptional performance for such a restrictive bandwidth, achieved through sophisticated thin film coatings design and precision manufacturing. The tight ±1nm center wavelength tolerance guarantees precise alignment with specific laser lines or spectral features.
The robust 2.0mm substrate provides superior mechanical stability, thermal performance, and laser damage resistance essential for high-power laser applications. The substantial thickness facilitates secure mounting in precision optical assemblies and ensures long-term dimensional stability under varying environmental conditions.
Applications
The BP580-3nm-2.0mm filter excels in advanced applications demanding extreme spectral precision:
Laser Line Cleanup and Wavelength Selection: Yellow lasers including 577nm and 579nm lines require precise wavelength isolation and amplified spontaneous emission suppression. The 3nm bandwidth provides surgical precision in selecting desired wavelengths while rejecting adjacent plasma lines and broadband background. Applications include laser-based analytical instruments, optical pumping systems, and precision laser sources.
Raman Spectroscopy: High-resolution Raman systems demand extreme rejection of Rayleigh scatter and laser background while efficiently transmitting weak Raman signals. The BP580 filter enables detection of Raman shifts in the yellow spectral region with minimal interference. The OD5 blocking prevents detector saturation from scattered laser light, enabling measurement of weak Raman features in chemical analysis, materials characterization, and pharmaceutical research.
Single-Molecule Detection and Super-Resolution Microscopy: Advanced microscopy techniques including PALM, STORM, and single-molecule tracking require extreme spectral purity to isolate individual fluorophore emissions. The 3nm bandwidth provides the wavelength discrimination necessary for separating closely spaced emission peaks in multi-color super-resolution imaging. The deep blocking eliminates background fluorescence and scattered excitation light that would compromise single-molecule detection sensitivity.
Precision Spectroscopy and Optical Metrology: Wavelength calibration, spectral line analysis, and optical frequency standards require filters with exceptional wavelength accuracy and stability. The ±1nm center wavelength tolerance and narrow 3nm passband enable precise spectral measurements for applications in atomic spectroscopy, optical telecommunications, and quantum optics research.
Laser-Induced Fluorescence and Analytical Chemistry: Ultra-sensitive detection of trace analytes using laser-induced fluorescence benefits from the extreme blocking performance, which suppresses scattered excitation light enabling detection of extremely weak fluorescence signals. Environmental monitoring, forensic analysis, and biomedical diagnostics rely on this capability for detecting parts-per-billion concentrations.
Customization and Engineering
OPTOStokes provides comprehensive customization for ultra-narrow filter applications. Center wavelength can be precisely tuned across the 570-590nm range with sub-nanometer accuracy. FWHM can be optimized from 2nm to 5nm depending on application requirements. Enhanced blocking specifications achieving OD6 or higher can be implemented for extreme applications. Custom bandpass designs accommodate specific laser wavelengths and spectral requirements.
Geometric options include circular, square, and custom shapes in various sizes. Mounting solutions range from unmounted filters to precision cells and laser-grade housings. Environmental hardening ensures reliable performance in demanding research and industrial environments.
Quality and Availability
Every filter undergoes rigorous spectral verification using research-grade instrumentation with sub-nanometer resolution. Comprehensive quality documentation includes measured spectral curves, blocking performance verification, and dimensional inspection results. OPTOStokes maintains ISO 9001:2015 certification ensuring consistent quality across all production.
Contact Us
The BP580-3nm-2.0mm filter represents OPTOStokes' expertise in ultra-narrow bandpass filter technology. Contact sales@optofilters.com to discuss your requirements, request detailed specifications, or obtain pricing. Visit www.optofilters.com for complete technical resources and product information.
