Round Gold Flat Mirrors

TFG

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TFG

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

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Name Diameter φD Material Rear Surface Delivery Price Add to cart

Gold Flat Mirror BK7 20mm Diameter
TFG-20C05-10

20mm

BK7

Ground

6-12 weeks

£112.52

Material	BK7
Coating	Cr (Chromium)+Au(Gold)
Parallelism	＜3′
Surface Quality (Scratch-Dig)	40-20
Clear aperture	Circle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
Type	Glass Circle
Quantity	1 piece
Optics Size	φ20mm
Thickness t	5mm
Surface Flatness (Wavelegth 632.8nm)	λ/10
Surface Flatness (Convert at 10.6μm)	λ/160
Rear surface	Ground

Gold Flat Mirror BK7 40mm Diameter
TFG-40C06-10

40mm

BK7

Polished

6-12 weeks

£168.78

Material	BK7
Coating	Cr (Chromium)+Au(Gold)
Parallelism	＜3′
Surface Quality (Scratch-Dig)	40-20
Clear aperture	Circle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
Type	Glass Circle
Quantity	1 piece
Optics Size	φ40mm
Thickness t	6mm
Surface Flatness (Wavelegth 632.8nm)	λ/10
Surface Flatness (Convert at 10.6μm)	λ/160
Rear surface	Polished

Gold Flat Mirror BK7 25mm Diameter
TFG-25C05-10

25mm

BK7

Polished

1 week

£131.24

Material	BK7
Coating	Cr (Chromium)+Au(Gold)
Parallelism	＜3′
Surface Quality (Scratch-Dig)	40-20
Clear aperture	Circle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
Type	Glass Circle
Quantity	1 piece
Optics Size	φ25mm
Thickness t	5mm
Surface Flatness (Wavelegth 632.8nm)	λ/10
Surface Flatness (Convert at 10.6μm)	λ/160
Rear surface	Polished

Gold Flat Mirror BK7 50mm Diameter
TFG-50C08-10

50mm

BK7

Polished

6-12 weeks

£196.91

Material	BK7
Coating	Cr (Chromium)+Au(Gold)
Parallelism	＜3′
Surface Quality (Scratch-Dig)	40-20
Clear aperture	Circle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
Type	Glass Circle
Quantity	1 piece
Optics Size	φ50mm
Thickness t	8mm
Surface Flatness (Wavelegth 632.8nm)	λ/10
Surface Flatness (Convert at 10.6μm)	λ/160
Rear surface	Polished

Gold Flat Mirror BK7 25mm Diameter Set of 10
TFG-25C05-10-C

25mm

BK7

Polished

6-12 weeks

£450.08

Material	BK7
Coating	Cr (Chromium)+Au(Gold)
Parallelism	＜3′
Surface Quality (Scratch-Dig)	40-20
Clear aperture	Circle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
Type	Glass Circle
Quantity	10 pieces 1 set
Optics Size	φ25mm
Thickness t	5mm
Surface Flatness (Wavelegth 632.8nm)	λ/10
Surface Flatness (Convert at 10.6μm)	λ/160
Rear surface	Polished

Gold Flat Mirror BK7 30mm Diameter
TFG-30C05-10

30mm

BK7

Polished

6-12 weeks

£150.06

Material	BK7
Coating	Cr (Chromium)+Au(Gold)
Parallelism	＜3′
Surface Quality (Scratch-Dig)	40-20
Clear aperture	Circle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
Type	Glass Circle
Quantity	1 piece
Optics Size	φ30mm
Thickness t	5mm
Surface Flatness (Wavelegth 632.8nm)	λ/10
Surface Flatness (Convert at 10.6μm)	λ/160
Rear surface	Polished

Gold Flat Mirror Single Silicon Crystal 30mm Diameter
TFGS-30C03-2

30mm

Single Silicon crystal

Ground

6-12 weeks

£524.96

Material	Single Silicon crystal
Coating	Cr (Chromium)+Au(Gold)
Parallelism	＜3′
Surface Quality (Scratch-Dig)	40-20
Clear aperture	Circle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
Type	Sillcon Circle
Quantity	1 piece
Optics Size	φ30mm
Thickness t	3mm
Surface Flatness (Wavelegth 632.8nm)	λ
Surface Flatness (Convert at 10.6μm)	λ/16
Rear surface	Ground

Gold Flat Mirror Single Silicon Crystal 40mm Diameter
TFGS-40C04-2

40mm

Single Silicon crystal

Ground

6-12 weeks

£656.21

Material	Single Silicon crystal
Coating	Cr (Chromium)+Au(Gold)
Parallelism	＜3′
Surface Quality (Scratch-Dig)	40-20
Clear aperture	Circle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
Type	Sillcon Circle
Quantity	1 piece
Optics Size	φ40mm
Thickness t	4mm
Surface Flatness (Wavelegth 632.8nm)	λ
Surface Flatness (Convert at 10.6μm)	λ/16
Rear surface	Ground

Gold Flat Mirror Single Silicon Crystal 50mm Diameter
TFGS-50C05-2

50mm

Single Silicon crystal

Ground

1 week

£703.06

Material	Single Silicon crystal
Coating	Cr (Chromium)+Au(Gold)
Parallelism	＜3′
Surface Quality (Scratch-Dig)	40-20
Clear aperture	Circle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
Type	Sillcon Circle
Quantity	1 piece
Optics Size	φ50mm
Thickness t	5mm
Surface Flatness (Wavelegth 632.8nm)	λ
Surface Flatness (Convert at 10.6μm)	λ/16
Rear surface	Ground

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◦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)