Description

The OPTOMAN PP-UVFS-25.4-6.35-DM365-AR687 is a high-precision UV fused silica dichroic mirror engineered for selective wavelength separation in advanced photonics and laser applications. This optical component features a 25.4 mm diameter, 6.35 mm thick UV fused silica substrate with a high-performance dielectric coating optimized for operation at a 22.5° angle of incidence. Designed to reflect 440 nm wavelengths while transmitting 450 nm light, it provides reliable spectral filtering with excellent optical efficiency and stability.

The mirror utilizes an advanced ion beam sputtered coating technology that delivers strong adhesion, low absorption, high laser damage resistance, and long-term environmental durability. Its UV fused silica construction ensures superior transmission, minimal thermal expansion, and consistent performance in demanding optical systems. The PP-UVFS-25.4-6.35-DM365-AR687 is an ideal solution for precision laser applications, fluorescence imaging, spectroscopy, biomedical instruments, and custom photonics assemblies requiring accurate wavelength control and dependable optical performance.

PP-UVFS-25.4-6.35-DM365-AR687 UV Fused Silica Dichroic Mirror

Specifications

Substrate Material: UV-grade Fused Silica (UVFS)
Shape: Circular
Diameter: 25.4 mm
Thickness: 6.35 mm
Clear Aperture (CA): 80 %
Optimized AOI: 22.5 – 22.5 deg
High Reflection Wavelength: 440 – 4450 nm
High Transmission Wavelength: 450 – 450 nm
Reflectance, S1 (@ HR Wavelength, @ AOI): 90 – 90 %
Surface Quality, S1 (scratch-dig): 20-10
Surface Quality, S2 (scratch-dig): 20-10
Surface Flatness Over CA, S1 (@633nm Or Per Manufacturer): <= Lambda/8
Surface Flatness Over CA, S2 (@633nm Or Per Manufacturer): <= Lambda/8
Manufacturer Part Number (MPN): PP-UVFS-25.4-6.35-DM365-AR687
FindLight SKU: FL-24668

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Features

  • Manufacturer Part Number: PP-UVFS-25.4-6.35-DM365-AR687
  • Precision dichroic wavelength separator for 440 nm reflection and 450 nm transmission
  • High-performance IBS (Ion Beam Sputtered) dielectric coating for exceptional durability
  • Reflectance: HRsp >90% @ 440 nm
  • Transmittance: Tsp >85% @ 450 nm (best effort >90%)
  • Optimized for 22.5° angle of incidence
  • Premium UV fused silica substrate for excellent optical transmission and thermal stability
  • 25.4 mm diameter with 6.35 mm thickness for compatibility with standard optical mounts
  • Stable spectral performance with low absorption and high environmental resistance
  • Suitable for continuous operation in demanding laboratory and industrial laser systems

Applications

  • Laser wavelength separation and beam combining
  • Fluorescence excitation and detection systems
  • Biomedical and life science instrumentation
  • Spectroscopy and analytical optical systems
  • Laser diagnostics and metrology
  • Scientific research laboratories
  • OEM laser equipment integration
  • Industrial optical inspection systems
  • Photonics R&D
  • Precision optical instrumentation

Export & Trade Information

ECCN: EAR99
HTS Code: 9001.90.6000
Estimated US Tariff: 10%

Importing, tariffs & codes (Quick Guide) →

Frequently Asked Questions

What is the primary purpose of the PP-UVFS-25.4-6.35-DM365-AR687?
This dichroic mirror is designed to efficiently separate closely spaced wavelengths by reflecting 440 nm light while transmitting 450 nm light, making it ideal for laser beam management and optical instrumentation.
What substrate material is used?
The optic is manufactured from high-quality UV fused silica, providing excellent transmission characteristics, low thermal expansion, and outstanding durability for precision optical applications.
Why is the IBS coating important?
Ion Beam Sputtering produces dense, hard dielectric coatings with excellent adhesion, high environmental stability, and consistent optical performance over extended operational lifetimes.
At what angle should this dichroic mirror be used?
The coating is optimized for a 22.5° angle of incidence, where it achieves its specified reflection and transmission performance.
Which applications benefit most from this optical component?
The mirror is well suited for laser systems, fluorescence instruments, spectroscopy setups, biomedical devices, photonics research, beam routing, and OEM optical assemblies requiring precise wavelength separation.

Got more questions? Use the inquiry form to ask the supplier directly.

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