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Gold (Au) coated reflection mirrors have high reflectance over wide infrared range.

◦Chromium (Cr) is used as the undercoated to better reinforce the adhesion of gold to the substrate.
◦ Gold mirrors with silicon substrates have higher durability than glass because gold coating adheres much stronger to silicon and has a higher thermal conductivity. (thermal conductivity of silicon is 111 times better compared to glass)

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Guide

▶Please contact our Sales Division for customized products. (customize outer diameter, etc.)
▶Pyrex® is a registered trademark of Corning Inc.

Attention

▶When silicon mirrors are water-cooled, heat dissipates more quickly and they have higher durability.
▶Since gold coating has an extremely low mechanical strength, extra care should be taken and it is recommended that cleaning of the surface be limited to blowing off the coated surface.
▶Reflectance of the specification are represented by the average of the reflectance of P polarized light and S polarized light.

Common Specifications
MaterialBK7
Hard glass (Pyrex® etc.)
Silicon
CoatingCr (Chromium)+Au(Gold) 
Parallelism<3′
Surface Quality (Scratch-Dig)40−20
Clear apertureCircle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
Laser Damage Threshold1.2kW/cm2 (CW laser)
Outline Drawing

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Schematic

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Typical Reflectance Data

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R: Reflectance
Typical Reflectance Data (Infra Red)

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R: Reflectance
Spec
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Part Number
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    PRICE(USD) Stock Qty
TFG-20C05-10
TFG-25C05-10
TFG-25C05-10-C
TFG-30C05-10
TFG-40C06-10
TFG-50C08-10
TFG-20S05-10
TFG-25S05-10
TFG-30S05-10
TFG-50S08-10
TFGS-30C03-2
TFGS-40C04-2
TFGS-50C05-2

Glass Circle

1 piece

φ20mm

5mm

λ/10

λ/160

BK7

Ground

Glass Circle

1 piece

φ25mm

5mm

λ/10

λ/160

BK7

Polished

Glass Circle

10 pieces 1 set

φ25mm

5mm

λ/10

λ/160

BK7

Polished

Glass Circle

1 piece

φ30mm

5mm

λ/10

λ/160

BK7

Polished

Glass Circle

1 piece

φ40mm

6mm

λ/10

λ/160

BK7

Polished

Glass Circle

1 piece

φ50mm

8mm

λ/10

λ/160

BK7

Polished

Glass Rectangle

1 piece

□20mm

5mm

λ/10

λ/160

BK7

Ground

Glass Rectangle

1 piece

□25mm

5mm

λ/10

λ/160

BK7

Ground

Glass Rectangle

1 piece

□30mm

5mm

λ/10

λ/160

BK7

Ground

Glass Rectangle

1 piece

□50mm

8mm

λ/10

λ/160

Hard glass

Polished

Sillcon Circle

1 piece

φ30mm

3mm

λ

λ/16

Single Silicon crystal

Ground

Sillcon Circle

1 piece

φ40mm

4mm

λ

λ/16

Single Silicon crystal

Ground

Sillcon Circle

1 piece

φ50mm

5mm

λ

λ/16

Single Silicon crystal

Ground

RoHS  

$120.00

CONTACT
US
RoHS  

$140.00

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US
RoHS  

$480.00

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US
RoHS  

$160.00

IN STOCK
RoHS  

$180.00

LOW
RoHS  

$210.00

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US
RoHS  

$130.00

IN STOCK
RoHS  

$160.00

LOW
RoHS  

$180.00

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US
RoHS  

$250.00

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US
RoHS  

$560.00

CONTACT
US
RoHS  

$700.00

CONTACT
US
RoHS  

$750.00

CONTACT
US