Ultrafast Laser Line Mirror, specifically designed for femtosecond laser systems in the 890–2940 nm Mid-Infrared (MIR) wavelength range, allows you to completely eliminate the following three major concerns: Are standard mirrors suitable for ultrashort pulse lasers? Can they fully preserve the sub-picosecond temporal structure of the pulses? Can they withstand high peak power without damage? With our series of ultrafast mirrors, these issues are no longer a concern.

This series of mirrors covers a broad wavelength range from 890 nm to 2940 nm and is optimized using Ion Beam Sputtering (IBS) technology, offering the following core advantages:

· Ultra-High Reflectivity and Low Group Delay Dispersion (GDD)
The reflectivity can reach >99.5% within the design wavelength range, and the group delay dispersion (GDD) is strictly controlled to <10 fs², achieving almost zero temporal broadening for femtosecond pulses before and after the mirror, perfectly preserving the original pulse shape and phase information.
· Excellent High-Energy Endurance
Combined with a high-purity fused silica substrate and a high-density IBS coating, the laser damage threshold (LIDT) reaches >3 J/cm² (10 ns single pulse), ensuring long-term stable operation under high peak power and high repetition frequency conditions, making the system safe and reliable.
· Outstanding Environmental Adaptability and Long-Term Stability
Due to the high density and excellent adhesion of IBS coatings, they can effectively resist performance drift caused by changes in temperature, humidity, and vacuum conditions, and adapt to high humidity, high temperature, or vacuum operating environments.
· Excellent Beam Quality
The precision-machined flatness and planarity ensure excellent wavefront quality, combined with low scattering and low absorption loss, maintaining excellent focusing performance and beam waist shape in TEM₀₀ mode.

With these features, this series of ultrafast laser line mirrors is not only an ideal choice for mid-infrared femtosecond light sources, nonlinear optics experiments, and time-resolved spectroscopy, but is also widely used in high-power industrial laser processing, micro-material processing, and precision marking, providing the most reliable optical support and performance assurance for your ultrafast laser system.

Precautions: To ensure optimal performance, it is recommended to store and use the mirror in an environment at 25°C with a relative humidity of 40%–60%. If the mirror surface becomes contaminated, gently wipe it with 99% or higher alcohol and a lint-free lens cleaning tissue. Avoid using rough fabrics, water, or cleaning agents containing abrasive particles, as they may damage the coating.