Flat Mirrors

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Reflective optical components that feature a flat surface and are commonly used to steer beams without introducing chromatic aberration and minimize dispersion.

Product	Wavelength Range	Reflectance	Substrate	Availability	Price (USD)
Round Mirror	800 nm (±30 nm)	> 99.7%	BK7	4 - 5 days	$ 184.00
Product Code Wavelength Range 800 nm (±30 nm) Center Wavelength 800 nm (±30 nm) Coating Dielectric Reflectance > 99.7% Dimensions Ø 50.8 x 10 mm Thickness 10 mm Substrate BK7 Surface Irregularity λ/10 (633 nm, Flatness) Clear Aperture 43.18 x 8.5 mm Surface Quality 20-10 scratch-dig (S1) Shape Round Angle of Incidence 0 - 8° Diameter Tolerance +0/-0.12 mm Damage Threshold Pulsed > 0.1 J/cm² (50 fs, 800 nm) Applications Ultrafast Laser Optics Radius of Curvature -2500 mm Chamfer 0.3 mm (45°) Supplier Location Lithuania See product details More from EKSMA Optics
Round Mirror	600 - 1000 nm	-	Fused Silica	Contact Supplier	$ 112.78
Product Code Wavelength Range 600 - 1000 nm Center Wavelength 600 - 1000 nm Reflection Wavelength 600 - 1000 nm Coating Protected Silver Diameter 19 mm Dimensions Ø 19 mm Thickness 6.35 mm (0.25") Parallelism 1' Substrate Fused Silica Surface Quality 10-5 scratch-dig (Output Face) 5/2x0.025; L1x0.004 (Front), 5/10x0.1 (Rear) (ISO-7) Shape Round Diameter Tolerance +0.05/-0.05 mm Thickness Tolerance ±0.1 mm Laser Type Ti:Sa Chamfer 0.4 mm (Rear) 0.4 mm (Front) Chamfer Tolerance ±0.1 mm Supplier Location Germany See product details More from LAYERTEC
Round Mirror	380 - 10000 nm	> 85% (400 - 700 nm) > 88% (550 nm)	Low Expansion Material	6 weeks	$ 60.00
Product Code Wavelength Range 380 - 10000 nm Center Wavelength 400 - 700 nm Coating Protected Aluminum Reflectance > 85% (400 - 700 nm) > 88% (550 nm) Diameter 31.5 mm Dimensions Ø 31.5 mm Thickness 5 mm (Center) Substrate Low Expansion Material Surface Irregularity λ, 10λ (Flatness) Shape Round Angle of Incidence 45° Center Thickness 5 mm Supplier Location Pennsylvania, USA See product details More from Excelitas
Round Mirror	1030 nm (Center Wavelength)	> 99.995% (1030 nm)	UV Fused Silica	In stock	$ 138.21
Product Code Manufacturer Optoman Wavelength Range 1030 nm (Center Wavelength) Center Wavelength 1030 nm Reflection Wavelength 1030 nm Coating Reflective V-Coating (1030 nm) Uncoated (Rear) Coating Method Ion Beam Sputtering (Front) Reflectance > 99.995% (1030 nm) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6.35 mm (0.25") Parallelism < 2' Substrate UV Fused Silica Surface Irregularity λ/4 (15 mm, 633 nm, Flatness) Clear Aperture 20 mm (Minimum) Surface Quality 10-5 scratch-dig (S1) < 60-40 scratch-dig (S2) Shape Round Angle of Incidence 0° Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.1 mm Applications Ultrafast Laser Optics Laser Type Yb:KGW, Yb:KYW, Yb:YAG Coating Features Narrowband Group Delay Dispersion < 40 fs² (0°, 960 - 1110 nm, s-pol, Reflection) Chamfer < 0.25 mm (45°) Supplier Location Lithuania See product details More from OPTOSHOP
Round Mirror	450 - 900 nm	> 98% (450 - 900 nm, 0°)	Borofloat	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 450 - 900 nm Center Wavelength 900 nm Coating Protected Silver Reflectance > 98% (450 - 900 nm, 0°) Diameter 50 mm Dimensions Ø 50 mm Thickness 2.5 mm Substrate Borofloat Surface Irregularity 2λ (633 nm, Flatness) Shape Round Angle of Incidence 0° Chamfer < 0.2 mm (45°) Supplier Location Netherlands See product details More from PHYSIX Photonics
Round Mirror	532 nm (Front, Center Wavelength)	> 99.8% (0°, 532 nm)	UV Fused Silica	In stock	$ 154.80
Product Code Wavelength Range 532 nm (Front, Center Wavelength) Center Wavelength 532 nm (Front) Reflection Wavelength 532 nm Coating Reflective V-Coating (532 nm) Uncoated (Rear) Coating Method Electron Beam Evaporation (Front) Reflectance > 99.8% (0°, 532 nm) Diameter 25 mm Dimensions Ø 25 mm Thickness 6.35 mm (0.25") Parallelism < 5' Substrate UV Fused Silica Surface Irregularity λ/10 (546 nm, Flatness) Surface Quality 10-5 scratch-dig 5/3x0.025 (ISO-7) Shape Round Angle of Incidence 0° Diameter Tolerance +0/-0.1 mm Coating Features High Power, Narrowband Supplier Location Germany See product details More from LASEROPTIK
Round Mirror	257 nm	99.5%	UV Fused Silica	4 - 5 days	$ 209.00
Product Code Wavelength Range 257 nm Center Wavelength 257 nm Coating Dielectric Reflectance 99.5% Dimensions Ø 25.4 x 6 mm Thickness 6 mm Substrate UV Fused Silica Surface Irregularity λ/10 (633 nm, Flatness) λ/8 (633 nm, Coated Surface) Clear Aperture 21.59 x 5.1 mm Surface Quality 20-10 scratch-dig (S1) Shape Round Angle of Incidence 0° Diameter Tolerance +0/-0.12 mm Thickness Tolerance ±0.25 mm Damage Threshold Pulsed > 0.3 J/cm² (50 fs, 100 Hz) Applications Ultrafast Laser Optics Wedge < 3' Group Delay Dispersion < 30 fs² Chamfer 0.3 mm (45°) Supplier Location Lithuania See product details More from EKSMA Optics
Round Mirror	515 nm (Center Wavelength)	> 99% (515 nm, Absolute)	N-BK7	In stock	$ 118.00
Product Code Wavelength Range 515 nm (Center Wavelength) Center Wavelength 515 nm Coating Dielectric Reflectance > 99% (515 nm, Absolute) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6.35 mm (0.25") Parallelism < 3' Substrate N-BK7 Surface Irregularity λ/10 (PV, Flatness) Clear Aperture 22.86 mm Surface Quality 20-10 scratch-dig Shape Round Angle of Incidence 0° Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Damage Threshold Pulsed 3 J/cm² (20 ns, 20 Hz, 515 nm) Supplier Location New Jersey, USA See product details More from Edmund Optics
Round Mirror	1010 - 1050 nm	> 99.9% (1010 - 1050 nm, s-pol, p-pol)	UV Fused Silica	In stock	$ 85.14
Product Code Wavelength Range 1010 - 1050 nm Reflection Wavelength 1010 - 1050 nm Coating Dielectric Reflectance > 99.9% (1010 - 1050 nm, s-pol, p-pol) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 5 mm Parallelism < 1' Substrate UV Fused Silica Surface Irregularity < λ/10 (633 nm, over 6 mm, Flatness) Clear Aperture > 11.43 mm Surface Quality 20-10 scratch-dig Shape Round Angle of Incidence 0 - 10° Perpendicularity ±5' Chamfer 0.1 - 0.3 mm (45°) Supplier Location Lithuania See product details More from Photonic Solutions
Round Mirror	257 nm	> 98%	Synthetic Fused Silica	6 - 12 weeks	$ 425.00
Product Code Wavelength Range 257 nm Center Wavelength 257 nm Coating Dielectric Reflectance > 98% Diameter 25 mm Dimensions Ø 25 mm Thickness 5 mm Parallelism < 3' Substrate Synthetic Fused Silica Surface Irregularity λ/10 (Flatness) Clear Aperture 22.5 mm Surface Quality 10-5 scratch-dig Shape Round Angle of Incidence 45° (±3°) Damage Threshold Pulsed 4 J/cm² Weight 50 g Supplier Location California, USA See product details More from OptoSigma
Round Mirror	450 - 650 nm	> 95% (450 - 650 nm, Average)	Soda-Lime Float Glass	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 450 - 650 nm Coating UV-Enhanced Aluminum Reflectance > 95% (450 - 650 nm, Average) Diameter 25 mm Dimensions Ø 25 mm Substrate Soda-Lime Float Glass Surface Irregularity 4 - 6λ (Flatness) Clear Aperture 22.5 mm Shape Round Angle of Incidence 45° Damage Threshold Pulsed 0.2 J/cm² (10 ns, 532 nm) Quality 80-50 Supplier Location Vermont, USA See product details More from omega optical
Round Mirror	750 nm	97%	Float Glass	Contact Supplier	$ 34.68
Product Code Wavelength Range 750 nm Coating Gold Reflectance 97% Diameter 15 mm Dimensions Ø 15 mm Thickness 3 mm Substrate Float Glass Clear Aperture 13.5 mm Surface Quality 60-40 scratch-dig Shape Round Diameter Tolerance +0/-0.2 mm Thickness Tolerance ±0.25 mm Supplier Location United Kingdom; Rhode Island, USA See product details More from Knight Optical
Round Mirror	1064 nm (Front, Center Wavelength)	> 99.8% (45°, 1064 nm)	UV Fused Silica	In stock	$ 154.80
Product Code Wavelength Range 1064 nm (Front, Center Wavelength) Center Wavelength 1064 nm (Front) Reflection Wavelength 1064 nm Coating Reflective V-Coating (1064 nm) Uncoated (Rear) Coating Method Electron Beam Evaporation (Front) Reflectance > 99.8% (45°, 1064 nm) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6.35 mm (0.25") Parallelism < 5' Substrate UV Fused Silica Surface Irregularity λ/10 (546 nm, Flatness) Surface Quality 10-5 scratch-dig 5/3x0.025 (ISO-7) Shape Round Angle of Incidence 45° Diameter Tolerance +0/-0.1 mm Coating Features Narrowband Supplier Location Germany See product details More from LASEROPTIK
Round Mirror	1010 - 1050 nm (±20 fs²)	> 99.95% (±20 fs², 1010 - 1050 nm, s-pol, p-pol)	UV Fused Silica	In stock	$ 126.75
Product Code Wavelength Range 1010 - 1050 nm (±20 fs²) Reflection Wavelength 1010 - 1050 nm Coating Dielectric Reflectance > 99.95% (±20 fs², 1010 - 1050 nm, s-pol, p-pol) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 5 mm Parallelism < 1' Substrate UV Fused Silica Surface Irregularity < λ/10 (633 nm, over 6 mm, Flatness) Clear Aperture > 22.86 mm Surface Quality 20-10 scratch-dig Shape Round Angle of Incidence 45° Perpendicularity ±5' Chamfer 0.1 - 0.3 mm (45°) Supplier Location Lithuania See product details More from Photonic Solutions
Round Mirror	1375 - 1575 nm	99.8% (0°, 1375 - 1575 nm, Front) < 0.2% (0°, 1375 - 1575 nm, Rear)	Infrasil	In stock	$ 316.23
Product Code Wavelength Range 1375 - 1575 nm Center Wavelength 1375 - 1575 nm Reflection Wavelength 1375 - 1575 nm Coating Partial Reflector (1375 - 1575 nm) BBAR (1375 - 1575 nm) (Rear) Reflectance 99.8% (0°, 1375 - 1575 nm, Front) < 0.2% (0°, 1375 - 1575 nm, Rear) Diameter 25 mm Dimensions Ø 25 mm Thickness 6.35 mm (0.25") Parallelism 5' Substrate Infrasil Surface Irregularity λ/10 (546.1 nm, Rear) λ/10 (546.1 nm, Front) Surface Quality 10-5 scratch-dig (Output Face) 5/2x0.04; L1x0.004 (Front), 5/2x0.04; L1x0.004 (Rear) (ISO-7) Shape Round Angle of Incidence 0° Diameter Tolerance +0.05/-0.05 mm Thickness Tolerance ±0.1 mm Applications Cavity Output Coupler Coating Features Broadband Split Ratio (R:T) 99.8:0.2 (1375 - 1575 nm) Group Delay Dispersion 0 fs² (1375 - 1575 nm) Chamfer 0.3 mm (Rear) 0.3 mm (Front) Chamfer Tolerance ±0.1 mm Supplier Location Germany See product details More from LAYERTEC
Round Mirror	1025 - 1035 nm	> 99.99% (1025 - 1035 nm) (p-pol)	UV Fused Silica	In stock	$ 350.51
Product Code Manufacturer Optoman Wavelength Range 1025 - 1035 nm Center Wavelength 1025 - 1035 nm Coating BBHR (1025 - 1035 nm) Uncoated (Rear) Coating Method Ion Beam Sputtering (Front) Reflectance > 99.99% (1025 - 1035 nm) (p-pol) Diameter 38.1 mm Dimensions Ø 38.1 mm Thickness 9.5 mm Parallelism < 5' Substrate UV Fused Silica Surface Irregularity < λ/10 (633 nm, over 15 mm, Flatness) Clear Aperture > 34.29 mm Surface Quality 20-10 scratch-dig (S1) Shape Round Angle of Incidence 45° Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.1 mm Applications Ultrafast Laser Optics Laser Type Yb:KGW, Yb:KYW, Yb:YAG Coating Features Broadband Group Delay Dispersion < 15 fs² (45°, 1000 - 1060 nm, p-pol, Reflection) < 5 fs² (45°, 1000 - 1060 nm, s-pol, Reflection) Chamfer 0.3 - 0.5 mm (45°) Supplier Location Lithuania See product details More from OPTOSHOP
Round Mirror	1280 - 1600 nm	> 99% (6°, Unpolarized)	ZERODUR	In stock	$ 200.76
Product Code Wavelength Range 1280 - 1600 nm Coating Dielectric Reflectance > 99% (6°, Unpolarized) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Parallelism < 3' Substrate ZERODUR Surface Irregularity λ/10 (632.8 nm, PV, Flatness) Clear Aperture > 21.59 mm Surface Quality 10-5 scratch-dig Shape Round Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Supplier Location New Jersey, USA See product details More from Thorlabs
Round Mirror	700 - 10000 nm	> 96% (700 - 2000 nm, Average) > 96% (2000 - 10000 nm, Average)	ZERODUR	In stock	$ 1135.00
Product Code Wavelength Range 700 - 10000 nm Coating Protected Gold Reflectance > 96% (700 - 2000 nm, Average) > 96% (2000 - 10000 nm, Average) Diameter 101.6 mm (4") Dimensions Ø 101.6 mm (4") Thickness 19.1 mm Substrate ZERODUR Surface Irregularity λ/20 (Flatness) Clear Aperture 91.44 mm Surface Quality 60-40 scratch-dig Shape Round Diameter Tolerance +0/-1 mm Thickness Tolerance ±1.5 mm Damage Threshold Pulsed 0.8 J/cm² (10 ns, 1064 nm) Supplier Location New Jersey, USA See product details More from Edmund Optics
Round Mirror	1047 - 1064 nm	99.5%	BK7, N-BK7	4 - 5 days	$ 225.00
Product Code Wavelength Range 1047 - 1064 nm Center Wavelength 1047 - 1064 nm Coating Dielectric Reflectance 99.5% Diameter 76.2 mm Dimensions Ø 76.2 mm Thickness 12.7 mm (0.5", Edge) Edge Thickness 12.7 mm (0.5") Substrate BK7, N-BK7 Surface Irregularity λ/10 (633 nm, Flatness) λ/10 (633 nm, Coated Surface) Clear Aperture 64.77 mm Surface Quality 20-10 scratch-dig (S1) Shape Round Angle of Incidence 45° Diameter Tolerance +0/-0.12 mm Thickness Tolerance ±0.25 mm Damage Threshold Pulsed 6 J/cm² (8 ns, 1064 nm) Laser Type Nd:YAG Wedge < 3' Chamfer 0.3 mm (45°) Supplier Location Lithuania See product details More from EKSMA Optics
Round Mirror	1030 nm (Center Wavelength)	> 80% (400 - 800 nm) > 99.9% (1030 nm) (s-pol) > 99.9% (1030 nm) (p-pol)	UV Fused Silica	In stock	$ 364.88
Product Code Manufacturer Optoman Wavelength Range 1030 nm (Center Wavelength) Center Wavelength 1030 nm Reflection Wavelength 400 - 800 nm Coating BBHR (400 - 800 nm) Reflective V-Coating (1030 nm) Uncoated (Rear) Coating Method Ion Beam Sputtering (Front) Reflectance > 80% (400 - 800 nm) > 99.9% (1030 nm) (s-pol) > 99.9% (1030 nm) (p-pol) Diameter 38.1 mm Dimensions Ø 38.1 mm Thickness 6.35 mm (0.25") Parallelism < 5' Substrate UV Fused Silica Surface Irregularity < λ/6 (13 mm, 633 nm, Flatness) Clear Aperture 32.5 mm (Minimum) Surface Quality 20-10 scratch-dig (S1) 80-50 scratch-dig (S2) Shape Round Angle of Incidence 45° Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.1 mm Applications Ultrafast Laser Optics Laser Type Yb:KGW, Yb:KYW, Yb:YAG Coating Features Broadband, Multi Wavelength, Narrowband Chamfer 0.2 - 0.3 mm (45°) Supplier Location Lithuania See product details More from OPTOSHOP