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High Reflectivity Mirrors

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High Reflectivity Mirrors

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Material from DUV to IR

HR-266nm, HR-355nm, HR-532nm, HR-1064nm, HR-1550nm

and custom wavelengths

Best R>99.995% @laser wavelength

Surface quality: 20-10 S/D

Custom dimension and shapes

 

CASTECH designs and fabricates high reflectivity mirrors with high laser damage threshold for most demanding laser applications. We utilize super polishing and ion beam figure(IBF) technologies to prepare high-quality substrates. With multiple advanced coating systems and technologies, coupled with high accuracy total loss measurement based on Cavity Ring-Down (CRD) and LDT measurement, we are able to deliver consistent high-quality mirrors featured not only high reflectivity, but high laser damage resistance and environmental stability.

Metrology

High reflectivity in the order of R = 99.9~99.995% are measured by Cavity-Ring-Down(CRD) technique CRD technique is a direct absorption technique based upon the measurement of the rate of absorption rather than the magnitude of absorption of a light pulse confined in a closed optical cavity with a high Q-factor. CRD measure instrument guarantees high reflectivity accuracy.

Cavity-Ring-Down (CRD) Technique

 

Reference Mirror: 0.999978                                                           Reference Mirror: 0.999973

Calculated Reflectivity: 0.999951 +/- 0.000002                           Calculated Reflectivity: 0.999955 +/- 0.000002

 

Reflectivity @532nm measured by CRD                                Reflectivity @1064nm measured by CRD

QQ截圖20210406172451
QQ截圖20210406172451
  • High Reflectivity Mirrors

Description
CAS' TECH CLASS
Parameters
Download
Download

Material from DUV to IR

HR-266nm, HR-355nm, HR-532nm, HR-1064nm, HR-1550nm

and custom wavelengths

Best R>99.995% @laser wavelength

Surface quality: 20-10 S/D

Custom dimension and shapes

 

CASTECH designs and fabricates high reflectivity mirrors with high laser damage threshold for most demanding laser applications. We utilize super polishing and ion beam figure(IBF) technologies to prepare high-quality substrates. With multiple advanced coating systems and technologies, coupled with high accuracy total loss measurement based on Cavity Ring-Down (CRD) and LDT measurement, we are able to deliver consistent high-quality mirrors featured not only high reflectivity, but high laser damage resistance and environmental stability.

Metrology

High reflectivity in the order of R = 99.9~99.995% are measured by Cavity-Ring-Down(CRD) technique CRD technique is a direct absorption technique based upon the measurement of the rate of absorption rather than the magnitude of absorption of a light pulse confined in a closed optical cavity with a high Q-factor. CRD measure instrument guarantees high reflectivity accuracy.

Cavity-Ring-Down (CRD) Technique

 

Reference Mirror: 0.999978                                                           Reference Mirror: 0.999973

Calculated Reflectivity: 0.999951 +/- 0.000002                           Calculated Reflectivity: 0.999955 +/- 0.000002

 

Reflectivity @532nm measured by CRD                                Reflectivity @1064nm measured by CRD

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