Square Gold Flat Mirrors

TFGS

Square Gold Flat Mirrors
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TFGS
Gold (Au) coated reflection mirrors have high reflectance over wide infrared range.
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Name A x B Material Rear Surface Delivery Price Add to cart
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Gold Flat Mirror BK7 20x20mm
TFG-20S05-10
20mm x 20mm BK7 Ground
6-12 weeks
$137.00
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 Rectangle
Quantity 1 piece
Optics Size □20mm
Thickness t 5mm
Surface Flatness (Wavelegth 632.8nm) λ/10
Surface Flatness (Convert at 10.6μm) λ/160
Rear surface Ground
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Gold Flat Mirror Hard glass 50x50mm
TFG-50S08-10
50mm x 50mm Hard glass Polished
6-12 weeks
$263.00
Material Hard glass
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 Rectangle
Quantity 1 piece
Optics Size □50mm
Thickness t 8mm
Surface Flatness (Wavelegth 632.8nm) λ/10
Surface Flatness (Convert at 10.6μm) λ/160
Rear surface Polished
i
Gold Flat Mirror BK7 25x25mm
TFG-25S05-10
25mm x 25mm BK7 Ground
6-12 weeks
$168.00
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 Rectangle
Quantity 1 piece
Optics Size □25mm
Thickness t 5mm
Surface Flatness (Wavelegth 632.8nm) λ/10
Surface Flatness (Convert at 10.6μm) λ/160
Rear surface Ground
i
Gold Flat Mirror BK7 30x30mm
TFG-30S05-10
30mm x 30mm BK7 Ground
2 weeks
$189.00
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 Rectangle
Quantity 1 piece
Optics Size □30mm
Thickness t 5mm
Surface Flatness (Wavelegth 632.8nm) λ/10
Surface Flatness (Convert at 10.6μm) λ/160
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)