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Silicon > Gold Flat Mirror Silicon

Introduction

Total reflection mirrors coated with gold (Au) that has high reflectance in a wide range of infrared. Chromium (Cr) is slightly undercoated to reinforce adhesion of gold to the substrate. Gold mirrors of silicon substrates have higher durability than glass substrates because gold coating adheres to silicon much stronger and silicon substrate has higher thermal conductivity.
 
 

Standard Specifications

  
 

Items

Specifications

Material

Silicon (Si)

Density

2.33g/cm3

Heat Transfer Coefficient

148 W/m・K

Dimension Tolerance

+0.0/-0.2 mm

Thickness Tolerance

± 0.2 mm

Clear Aperture

> 90%

Parallelism

< 3 arc seconds

Flatness

λ/10 at 632.8 nm (Substrate)

Surface Quality

scratch and dig 20-10

Bevel

0.5 (0/-0.3) mm

Coating

Cr+Au

Reflectivity

Ravg≥ 99%

Notes:

1. Surface Quality could reach 40-20

2. Parallelism such as 10" is available.

3. Please show us the size and the coating specification.

  
   
 

Part NO.

D(mm)

t(mm)

IMS0101

30.0

3.0

IMS0102

40.0

4.0

IMS0103

50.0

5.0

 

 

  
Catalogue Download
Gold Flat Mirror Silicon
Gold Flat Mirror Silicon
 

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