UV Fused Silica Short Pass Optical Filter

This short pass optical filter is designed to transmit shorter wavelengths while effectively blocking longer wavelengths, offering sharp spectral cutoff and stable performance for spectroscopy and imaging applications.

  • Material :

    UV Fused Silica
  • Dimension Tolerance :

    +0.0 / -0.1 mm
  • Thickness Tolerance :

    2 mm ± 0.2 mm
  • Center Wavelength Tolerance :

    ±1%
  • Wavefront Error :

    λ/4 @ 633 nm
  • Central Wavelength Tolerance :

    ±1%
  • Parallelism :

    < 30 arc seconds
  • Surface Quality :

    40/20 – 60/40
  • Clear Aperture :

    > 90%
  • Product Details

 

Product Description

The UV fused silica short pass filter utilizes multilayer interference coating technology to achieve precise wavelength separation. By transmitting light below the cutoff wavelength and suppressing longer wavelengths, this short pass filter delivers reliable optical performance in demanding analytical and scientific environments.

 

Performance Advantages

Sharp cutoff slope for accurate wavelength discrimination

High transmission in the passband region

UV fused silica substrate with excellent optical uniformity

Low wavefront distortion suitable for imaging systems

Stable performance at normal (0°) angle of incidence

 

Application Range

This short pass optical filter is widely used in fluorescence excitation spectroscopy, Raman spectroscopy systems, optical spectral separation, astronomical observation, and precision analytical instruments.

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