Materion BS-G dielectric beamsplitters

Product Description

Lot of Materion Precision Optics Custom Dielectric Plate Beamsplitters – BS-G Series (Defense Lab Surplus)

This is a premium lot of custom dielectric beamsplitters from Materion Precision Optics, originally manufactured for a defense research center specializing in advanced photonics, laser, and quantum systems. Part of the “BS-G” (Beamsplitter-Green) series, these optics feature single-sided multilayer dielectric coatings on high-purity fused silica substrates, optimized for performance in the green visible spectrum (~500–550 nm). The lot includes multiple apertures and is in new, unused condition with original Materion packaging.

Key Specifications:

• Series: Materion BS-G (Beamsplitter-Green) – custom non-polarizing, phase-controlled design

• Substrate: Fused silica (high laser damage threshold, UV-Vis-NIR transmission)

• Coating: Single-sided multilayer dielectric (vivid interference colors indicate ~500–550 nm optimization)

• Sizes Included:

  • 40 mm diameter (primary optic)

  • 30 mm diameter (primary optic)

  • 25 mm diameter (witness/test samples for coating verification)

• Condition: New / Unused – original Materion containers with labels; pristine optical surfaces

• Provenance: Custom-manufactured for a U.S. defense research laboratory

Why This Lot Is Exceptional:

• Defense-Grade Quality: Built to exacting specifications for high-performance laser and sensor systems.

• Green-Optimized Performance: Ideal for 532 nm (frequency-doubled Nd:YAG), green diode lasers, and related applications.

• Multiple Sizes for Versatility: The inclusion of witness samples (25 mm) allows for testing and verification without using the primary optics.

• Traceable Origin: Original packaging and labeling provide provenance and assurance of quality.

Applications:

• Green Laser Systems: Beam splitting/combining for 532 nm Nd:YAG, DPSS, or diode lasers.

• Precision Interferometry: Low-ghost, phase-controlled beamsplitters for Mach-Zehnder or other interferometers.

• Photonics & Quantum Research: Custom optics for experiments in spectroscopy, fluorescence imaging, or quantum optics.

• Biomedical Imaging: Beam steering in microscopes or other imaging systems using green excitation.

• Educational & Prototyping: High-quality components for university labs, DIY laser projects, or R&D prototyping.