New arrival: 99.999% ultra-high reflectivity plane mirror
New Product Launch | UltraOpto 99.999% Ultra-High Reflectivity Flat Mirror: The Core Choice for Low-Loss Optical Paths

Focusing on the extreme low-loss demands in the high-end optical field, UltraOpto has launched a 99.999% ultra-high reflectivity flat mirror, breaking through the performance bottleneck of conventional mirrors. Specifically designed for high-precision and high-stability optical path systems, it redefines the ultimate standard of optical reflection.
Key Highlights and Solid Strengths
Ultimate reflection, nearly zero loss: Utilizing advanced multi-layer dielectric coating technology, it achieves a reflectivity of ≥99.999% in the target band and an absorption rate of <10ppm, minimizing energy attenuation in the optical path and meeting the strict requirements of ultra-stable lasers and precision detection.
High-precision substrate, flawless surface:
Selecting ultraviolet fused quartz substrate, with super-smooth polishing process, surface flatness ≤ λ/10@633nm, excellent parallelism, no scattering, no ghosting, and precise reflection optical path without distortion.
High damage resistance and stable durability:
The film layer has strong adhesion and high density, with excellent laser damage threshold, compatible with continuous wave and pulsed lasers, stable performance across a wide temperature range, and is not afraid of long-term high-load operation.
Flexible customization and strong adaptability:
Covering the mainstream bands of visible light and near-infrared, it supports standard sizes such as 12.7mm and 25.4mm, and can also be customized in terms of wavelength, size and coating scheme as required, to fit various high-end optical path designs.
Applicable scenarios
It is widely applied in cutting-edge scientific research and industrial fields such as quantum computing and precise measurement, ultra-stable lasers, laser gyroscopes, CRDS cavity ring-down systems, gravitational wave detection, time-frequency transmission, and high-end optical communication, and is a core reflective component of high-precision optical systems.



