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Super Mirrors
Keyword：
Super Mirrors
Category：
- Description
- Cas'Tech Class
- Parameters
-
Material from VIS to IR
HR-532 nm, HR-1064 nm, HR-1550 nm
R>99.999% @532 nm, 1064 nm, 1550 nm
Surface quality: Central area 10-5 S/D, up to 0-0 S/D; Outside the center area 20-10 S/D
Customize dimension and shapes
High laser damage threshold
Ring laser gyroscope
Environmental gas monitoring and analysis
Construction of ultrastable cavity for optical frequency atomic clock and quantum precision measurementCASTECH designs and manufactures supermirrors with high laser-induced damage thresholds (LIDT), making them suitable for the most demanding laser applications. During fabrication, we employ ultra-smooth polishing and ion beam figuring (IBF) technologies to achieve substrates with exceptional surface quality and figure accuracy. Advanced coating deposition techniques, combined with ultra-high-precision cavity ring-down (CRD) measurement systems, ensure reflectivity up to 99.999%. Additionally, our integrated damage threshold testing systems monitor LIDT compliance with application-specific requirements. Thus, CASTECH delivers high-quality supermirrors offering superior reflectivity, exceptional LIDT, and outstanding environmental stability
Metrology
CASTECH possesses the capability to precisely measure ultra-high reflectivity using the Cavity Ring-Down (CRD) method. This technique allows for accurate characterization of ultra-high-reflectivity components at wavelengths of 532 nm, 1064 nm, and 1550 nm, with a measurable reflectivity range of 99.9% to 99.9995%. CRD is a cavity mirror decay testing technology that determines component reflectivity by measuring the decay time of laser light within an optical cavity. It is recognized as a high-precision method for quantifying ultra-high reflectivity.
Cavity-Ring-Down(CRD)Technique
1550 nm super mirrors decay curves
Reference Mirror:0.999973
Calculated Reflectivity:0.999955+/-0.000002
Reflectivity @1064 nm measured by CRD
Key words:- High Reflectivity Mirrors
- OPTICAL Reflectivity optics
- HR-266/355/532/1064/1550
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