uncoated molybdenum laser mirror CO2

Product Description

Uncoated Molybdenum Laser Mirror – 50mm Diameter, 8mm Thick

This high-quality uncoated molybdenum (Mo) mirror is a robust optical component ideal for demanding laser applications. Featuring a 50mm diameter and 8mm thickness, it offers exceptional durability and thermal conductivity, making it perfect for environments where frequent cleaning or exposure to debris is common. The mirror’s polished surface provides natural high reflectivity in the infrared spectrum without any additional coatings, ensuring long-term performance in harsh conditions. This piece appears to be from a precision optics batch, possibly a custom or surplus item from laser system manufacturing.

Molybdenum mirrors are the toughest, most durable, longest-lasting laser mirrors currently available . Molybdenum has the lowest thermal expansion among all commercial metal materials; therefore, mirrors made of molybdenum can withstand extreme temperatures with low susceptibility to deformation or softening . For infrared applications, the molybdenum mirror has a high natural reflectance (around 98%) over a broad spectrum .

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Key Specifications

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Why Uncoated Molybdenum?

Molybdenum mirrors need no coating due to their inherently high reflection in the IR spectrum . Advanced mirror fabrication techniques endow the uncoated polished substrates with excellent robustness and quality, which translate to prominent thermal and mechanical properties, and high chemical inertia . This ensures stable operations in high-power and high-temperature situations and in conditions where weld spatter, fumes, smoke, and process debris prevail .

Key Advantages:

• Extremely Scratch-Resistant: Can be scrubbed with brushes, soaked in organic solvents or detergents repeatedly without damage

• No Coating Degradation: No coatings to fail or degrade over time—ideal for hostile environments

• High Thermal Stability: Maintains figure under extreme thermal loads

• Unrestricted Cleanability: Perfect for dirty industrial environments requiring frequent cleaning

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Applications & Uses

CO₂ Laser Systems:

• Beam steering and reflection in industrial cutting, welding, engraving, and marking machines

• Handles powers from 40W to multi-kilowatt levels

• Ideal as turning mirrors in beam delivery systems

TEA Lasers (Transversely Excited Atmospheric) and High-Pulse Energy Systems:

• Resistant to localized melting and damage in pulsed laser setups

Er:YAG and Quantum Cascade Lasers (QCL):

• Durable optics for medical, dental, gas sensing, and spectroscopy applications in the IR range (>2µm wavelength)

Hostile Industrial Environments:

• Perfect for dirty or corrosive settings requiring frequent scrubbing, such as manufacturing floors or research labs

• Suitable for laser engraving, marking, cutting, hole drilling, and welding applications

Other IR Optics:

• Spectrometers, solar energy systems, or any setup needing high thermal stability and unrestricted cleanability

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Material Properties

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Thickness Advantage: 8mm Profile

This mirror’s 8mm thickness is significantly thicker than standard 3mm mirrors . This enhanced thickness provides:

• Superior heat dissipation for prolonged high-power operation

• Enhanced mechanical rigidity and reduced distortion under thermal load

• Suitable for high-power lasers from 20 watts to kilowatts

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Condition

EXCELLENT SURPLUS CONDITION
SURFACES: Clean, optically polished, no visible scratches or chips
METAL SUBSTRATE: No corrosion, oxidation, or damage
READY FOR IMMEDIATE INTEGRATION

⚠ HANDLING NOTE: While extremely durable and scratch-resistant , handle with clean gloves to maintain optical surface quality. The mirror can be cleaned with standard optical solvents if necessary .