BP655-20 Bandpass Filter(CWL=655nm,FWHM=20nm)

BP655-20 Bandpass Filter - Deep Red Chlorophyll Fluorescence Excellence

The BP655-20 bandpass filter delivers exceptional performance at the critical 655nm wavelength, positioned in the deep red spectral region. With a narrow 20nm FWHM bandwidth and OD4 blocking, this filter provides superior spectral selectivity for demanding chlorophyll fluorescence imaging, plant biology research, and far-red analytical applications.

Key Features

• Center Wavelength (CWL): 655nm - optimized for chlorophyll fluorescence and deep red applications
• Narrow Bandwidth: 20nm FWHM for excellent spectral resolution
• Superior Blocking: OD4 optical density ensures 10,000:1 rejection of unwanted wavelengths
• High Transmission: Optimized coatings maximize throughput at 655nm
• Premium Quality: Hard-coated surfaces for long-term durability and stability

Applications

Essential for a wide range of optical applications including:

• Chlorophyll fluorescence imaging and plant photosynthesis research
• Fluorescence microscopy with far-red fluorophores (Cy5, Alexa Fluor 647)
• Agricultural monitoring and crop health assessment
• Flow cytometry and multi-color cell analysis
• Confocal microscopy and laser scanning systems
• Spectroscopy and photometric analysis
• Semiconductor inspection and quality control
• Remote sensing and vegetation monitoring

Technical Excellence

The 655nm wavelength occupies a strategic position in the deep red spectral region, corresponding to the peak chlorophyll fluorescence emission. This makes it invaluable for plant biology research, agricultural monitoring, and photosynthesis studies. Our BP655-20 filter's narrow 20nm bandwidth provides excellent spectral selectivity, enabling precise isolation of chlorophyll fluorescence while rejecting adjacent wavelengths.

With OD4 (10,000:1) blocking performance, this filter delivers exceptional out-of-band rejection critical for sensitive fluorescence applications. The superior blocking ensures that weak chlorophyll fluorescence signals can be detected without interference from excitation light or emissions from other sources, making it ideal for demanding research applications in plant biology and environmental monitoring.

The 655nm wavelength is also significant for far-red fluorescence microscopy, as it corresponds to the emission range of popular far-red fluorophores like Cy5 and Alexa Fluor 647. The narrow 20nm bandwidth minimizes spectral crosstalk in multi-color imaging experiments, enabling more accurate quantitative measurements and clearer separation from adjacent fluorophores.

Manufactured using advanced ion-beam sputtering technology, the BP655-20 delivers consistent performance across the entire aperture with minimal transmission variation. The hard-coated surfaces ensure durability in demanding laboratory and field environments, maintaining optical quality through years of continuous use in fluorescence microscopy and remote sensing systems.

The filter's narrow bandwidth is particularly valuable for chlorophyll fluorescence measurements, where precise spectral discrimination is essential for distinguishing between different photosynthetic states and stress responses in plants. This makes it an indispensable tool for agricultural research, environmental monitoring, and plant phenotyping applications.

Whether you're conducting chlorophyll fluorescence imaging for photosynthesis research, performing far-red fluorescence microscopy with Cy5 dyes, monitoring crop health in agricultural applications, or building spectroscopic instruments for vegetation analysis, the BP655-20 provides the wavelength precision and optical quality that professional research applications demand. Trust SyronOptics for optical components that deliver research-grade performance for plant biology and far-red imaging applications.