BP405-10 Bandpass Filter(CWL=405nm,FWHM=10nm)

BP405-10 Bandpass Filter - Ultra-Narrow Violet Excitation Precision

The BP405-10 bandpass filter delivers exceptional performance at the critical 405nm violet wavelength, combining an ultra-narrow 10nm FWHM bandwidth with OD6 blocking for unmatched spectral purity. Engineered for the most demanding fluorescence and analytical applications, this filter provides superior wavelength isolation with minimal out-of-band transmission.

Key Features

• Center Wavelength (CWL): 405nm - optimized for violet excitation and mercury h-line
• Ultra-Narrow Bandwidth: 10nm FWHM for maximum spectral resolution
• Exceptional Blocking: OD6 optical density ensures 1,000,000:1 rejection of unwanted wavelengths
• High Transmission: Optimized coatings maximize throughput at 405nm
• Premium Quality: Hard-coated surfaces for long-term durability and stability

Applications

Essential for advanced optical applications including:

• Fluorescence microscopy with violet-excitable fluorophores (DAPI, Hoechst, BFP)
• Mercury lamp line filtering (h-line at 404.7nm)
• Flow cytometry and cell analysis systems
• Confocal and multiphoton microscopy
• Semiconductor inspection and photolithography
• Raman spectroscopy with 405nm laser excitation
• High-resolution spectroscopy and photometry

Technical Excellence

The 405nm wavelength represents a critical position in the optical spectrum, serving as both a key mercury emission line and the optimal excitation wavelength for numerous fluorescent dyes and proteins. Our BP405-10 filter's ultra-narrow 10nm bandwidth provides exceptional spectral selectivity, enabling precise isolation of this wavelength while rejecting adjacent spectral regions.

With OD6 (1,000,000:1) blocking performance, this filter sets the standard for out-of-band rejection, making it ideal for sensitive fluorescence applications where even minimal stray light can compromise results. The exceptional blocking is particularly crucial when working with weak fluorescence signals or performing multi-color imaging experiments.

Manufactured using state-of-the-art ion-beam sputtering technology, the BP405-10 delivers consistent performance across the entire aperture with minimal wavefront distortion. The hard-coated surfaces ensure durability in demanding laboratory environments, maintaining optical quality through thousands of hours of use.

Whether you're conducting cutting-edge fluorescence research, performing mercury line spectroscopy, or developing advanced imaging systems, the BP405-10 provides the wavelength precision and optical quality that professional applications demand. Trust SyronOptics for optical components that deliver research-grade performance.