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	450 - 650 nm	> 95% (450 - 650 nm, Average)	Fused Silica	In stock	$ 12430.00
Product Code Wavelength Range 450 - 650 nm Coating UV-Enhanced Aluminum Reflectance > 95% (450 - 650 nm, Average) Diameter 304.8 mm Dimensions Ø 304.8 mm Thickness 38.1 mm Substrate Fused Silica Surface Irregularity λ/20 (Flatness) Surface Quality 60-40 scratch-dig Clear Aperture 274.32 mm Shape Round Diameter Tolerance +0/-1 mm Thickness Tolerance ±2.5 mm Damage Threshold Pulsed 0.2 J/cm² (10 ns, 532 nm) Supplier Location New Jersey, USA See product details More from Edmund Optics
Round Mirror	500 - 12000 nm (Center Wavelength)	> 96% (500 - 12000 nm)	Low Expansion Material	6 weeks	$ 37.00
Product Code Wavelength Range 500 - 12000 nm (Center Wavelength) Center Wavelength 500 - 12000 nm Coating Silver Reflectance > 96% (500 - 12000 nm) Diameter 10 mm Dimensions Ø 10 mm Thickness 2 mm (Center) Substrate Low Expansion Material Surface Irregularity λ, 10λ (Flatness) Shape Round Angle of Incidence 0 - 60° Center Thickness 2 mm Mount Unmounted Supplier Location Pennsylvania, USA See product details More from Excelitas
Round Mirror	1030 - 1090 nm (Front)	> 99.9% (0°, 1030 - 1090 nm)	N-BK7	In stock	$ 154.80
Product Code Wavelength Range 1030 - 1090 nm (Front) Center Wavelength 1030 - 1090 nm (Front) Reflection Wavelength 1030 - 1090 nm Coating BBHR (1030 - 1090 nm) Uncoated (Rear) Coating Method Electron Beam Evaporation (Front) Reflectance > 99.9% (0°, 1030 - 1090 nm) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6.35 mm (0.25") Substrate N-BK7 Surface Irregularity λ/10 (546 nm, Flatness) Surface Quality 10-5 scratch-dig 5/3x0.040 (ISO-7) Shape Round Angle of Incidence 0° Diameter Tolerance +0/-0.1 mm Coating Features Broadband Wedge 30' Wedge Tolerance ±5' Supplier Location Germany See product details More from LASEROPTIK
Round Mirror	730 - 950 nm	99%	BK7	Contact Supplier	$ 113.00
Product Code Wavelength Range 730 - 950 nm Center Wavelength 730 - 950 nm Coating Dielectric Reflectance 99% Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6 mm (Edge) Edge Thickness 6 mm Substrate BK7 Surface Irregularity λ/10 (633 nm, Flatness) λ/10 (633 nm, Coated Surface) Surface Quality 20-10 scratch-dig (S1) Clear Aperture 10.795 mm Shape Round Angle of Incidence 0° Diameter Tolerance +0/-0.12 mm Thickness Tolerance ±0.25 mm Damage Threshold Pulsed 1 J/cm² (8 ns, 1064 nm) Applications Ultrafast Laser Optics Laser Type Ti:Sa Coating Features Low GDD Wedge < 3' Chamfer 0.3 mm (45°) Supplier Location Lithuania See product details More from EKSMA Optics
Round Mirror	1000 - 1060 nm 1030 nm	87% (0°, 1030 nm, Front) < 0.2% (0°, 1000 - 1060 nm, Rear)	Fused Silica	In stock	$ 391.42
Product Code Wavelength Range 1000 - 1060 nm 1030 nm Center Wavelength 1000 - 1060 nm 1030 nm Reflection Wavelength 1030 nm 1000 - 1060 nm Coating Partial Reflector (1030 nm) BBAR (1000 - 1060 nm) (Rear) Reflectance 87% (0°, 1030 nm, Front) < 0.2% (0°, 1000 - 1060 nm, Rear) Diameter 25 mm Dimensions Ø 25 mm Thickness 6.35 mm (0.25") Substrate Fused Silica Surface Irregularity λ/10 (546.1 nm, Rear) λ/10 (546.1 nm, Front) Surface Quality 10-5 scratch-dig (Output Face) 5/1x0.016 (Front), 5/1x0.04; 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 Laser Type Yb:YAG Coating Features Broadband Split Ratio (R:T) 87:13 (1030 nm) Wedge 30' Chamfer 1 mm (Rear) 0.3 mm (Front) Chamfer Tolerance ±0.1 mm Supplier Location Germany See product details More from LAYERTEC
Round Mirror	500 - 532 nm (±20 fs²)	> 99.5% (±20 fs², 500 - 532 nm, Average)	UV Fused Silica	In stock	$ 76.29
Product Code Wavelength Range 500 - 532 nm (±20 fs²) Reflection Wavelength 500 - 532 nm Coating Dielectric Reflectance > 99.5% (±20 fs², 500 - 532 nm, Average) 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) Surface Quality 20-10 scratch-dig Clear Aperture > 11.43 mm 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	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 25 mm Dimensions Ø 25 mm Thickness 2.5 mm Substrate Borofloat Surface Irregularity λ (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	970 - 1150 nm	-	Fused Silica	In stock	$ 291.31
Product Code Wavelength Range 970 - 1150 nm Reflection Wavelength 970 - 1150 nm 1020 - 1080 nm Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 9.5 mm (0.37") Parallelism < 3' Substrate Fused Silica Surface Irregularity λ/6 (Front, Flatness) Surface Quality 15-5 scratch-dig Clear Aperture > 20.32 mm Shape Round Angle of Incidence 45° Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Applications Ultrafast Laser Optics Coating Features Low GDD Group Delay Dispersion < 30 fs² (970 - 1150 nm) < 30 fs² (1020 - 1080 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
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 38.1 mm Dimensions Ø 38.1 mm Substrate Soda-Lime Float Glass Surface Irregularity 4 - 6λ (Flatness) Clear Aperture 34.29 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	800 - 20000 nm	> 97% (800 - 20000 nm, Average)	Fused Silica	In stock	$ 1112.82
Product Code Wavelength Range 800 - 20000 nm Reflection Wavelength 800 - 20000 nm Coating Gold Reflectance > 97% (800 - 20000 nm, Average) Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 12 mm (0.47") Parallelism < 3' Substrate Fused Silica Surface Irregularity λ/10 (Front, PV, Flatness) Surface Quality 40-20 scratch-dig Clear Aperture > 45.72 mm Shape Round Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Damage Threshold Pulsed 4 J/cm² (0.435 mm, 100 ns, 1 Hz, 10600 nm) Supplier Location New Jersey, USA See product details More from Thorlabs
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 12.5 mm Dimensions Ø 12.5 mm Substrate Soda-Lime Float Glass Surface Irregularity 4 - 6λ (Flatness) Clear Aperture 11.25 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	337 - 349 nm	> 99.6% (337 - 349 nm) (s-pol)	UV Fused Silica	In stock	$ 160.33
Product Code Manufacturer Optoman Wavelength Range 337 - 349 nm Center Wavelength 337 - 349 nm Coating BBHR (337 - 349 nm) Uncoated (Rear) Coating Method Ion Beam Sputtering (Front) Reflectance > 99.6% (337 - 349 nm) (s-pol) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6.35 mm (0.25") Parallelism < 10'' Substrate UV Fused Silica Surface Irregularity < λ/10 (633 nm, Flatness) Surface Quality 10-5 scratch-dig (S1, S2) Clear Aperture > 22.86 mm Shape Round Angle of Incidence 45° Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.1 mm Damage Threshold Pulsed > 0.2 J/cm² (300 fs, 343 nm) Applications Ultrafast Laser Optics Laser Type Yb:KGW, Yb:KYW, Yb:YAG Coating Features Broadband Group Delay Dispersion < 60 fs² (45°, 325 - 380 nm, s-pol, Reflection) Chamfer 0.2 - 0.4 mm (45°) Supplier Location Lithuania See product details More from OPTOSHOP
Round Mirror	-	> 90%	BK7	2 weeks	$ 42.00
Product Code Coating Protected Aluminum Reflectance > 90% Diameter 25 mm Dimensions Ø 25 mm Thickness 5 mm Parallelism < 3' Substrate BK7 Surface Irregularity λ/10 (Flatness) Surface Quality 40-20 scratch-dig Shape Round Angle of Incidence 45° Damage Threshold Pulsed 0.25 J/cm² Weight 7 g Rear Surface Polished Supplier Location California, USA See product details More from OptoSigma
Round Mirror	760 - 840 nm	> 99.5% (760 - 840 nm, Average)	UV Fused Silica	In stock	$ 88.83
Product Code Wavelength Range 760 - 840 nm Reflection Wavelength 760 - 840 nm Coating Dielectric Reflectance > 99.5% (760 - 840 nm, Average) Diameter 38.1 mm Dimensions Ø 38.1 mm Thickness 5 mm Parallelism < 1' Substrate UV Fused Silica Surface Irregularity < λ/10 (633 nm, over 6 mm, Flatness) Surface Quality 20-10 scratch-dig Clear Aperture > 34.29 mm 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	800 - 1000 nm (Front)	> 99.8%, 99.5% (0°, 800 - 1000 nm)	UV Fused Silica	In stock	$ 221.14
Product Code Wavelength Range 800 - 1000 nm (Front) Center Wavelength 800 - 1000 nm (Front) Reflection Wavelength 800 - 1000 nm Coating BBHR (800 - 1000 nm) Uncoated (Rear) Coating Method Electron Beam Evaporation (Front) Reflectance > 99.8%, 99.5% (0°, 800 - 1000 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 Broadband Supplier Location Germany See product details More from LASEROPTIK
Round Mirror	760 - 840 nm	99.5%	BK7	4 - 5 days	$ 74.00
Product Code Wavelength Range 760 - 840 nm Center Wavelength 760 - 840 nm Coating Dielectric Reflectance 99.5% Dimensions Ø 12.7 x 3 mm Thickness 3 mm Substrate BK7 Surface Irregularity λ/10 (633 nm, Flatness) λ/10 (633 nm, Coated Surface) Surface Quality 20-10 scratch-dig (S1) Clear Aperture 10.795 x 2.55 mm Shape Round Angle of Incidence 45° Diameter Tolerance +0/-0.12 mm Damage Threshold Pulsed > 0.1 J/cm² (50 fs, 50 Hz, 800 nm) Applications Ultrafast Laser Optics Coating Features Low GDD Wedge < 3' Chamfer 0.3 mm (45°) Supplier Location Lithuania See product details More from EKSMA Optics
Round Mirror	700 - 1000 nm	99.9% (45°, 700 - 1000 nm, Front) (s-pol)	Fused Silica	Contact Supplier	$ 958.64
Product Code Wavelength Range 700 - 1000 nm Center Wavelength 700 - 1000 nm Coating BBHR (700 - 1000 nm) Reflectance 99.9% (45°, 700 - 1000 nm, Front) (s-pol) Diameter 50 mm Dimensions Ø 50 mm Thickness 9.5 mm Parallelism 5' Substrate Fused Silica Surface Irregularity λ/10 (546.1 nm, Front) Surface Quality 10-5 scratch-dig 5/1x0.025; L1x0.004 (Front) (ISO-7) Shape Round Angle of Incidence 45° Diameter Tolerance +0.05/-0.05 mm Thickness Tolerance ±0.1 mm Applications Turning Mirror Coating Features Broadband Supplier Location Germany See product details More from LAYERTEC
Round Mirror	1030 nm (Center Wavelength)	> 99.9% (1030 nm) (s-pol) > 99.9% (515 nm) (s-pol) > 99.9% (1030 nm) (p-pol) > 99.9% (515 nm) (p-pol)	UV Fused Silica	In stock	$ 272.00
Product Code Manufacturer Optoman Wavelength Range 1030 nm (Center Wavelength) Center Wavelength 1030 nm Coating Reflective V-Coating (1030 nm) Reflective V-Coating (515 nm) Coating Method Ion Beam Sputtering (Front) Ion Beam Sputtering (Rear) Reflectance > 99.9% (1030 nm) (s-pol) > 99.9% (515 nm) (s-pol) > 99.9% (1030 nm) (p-pol) > 99.9% (515 nm) (p-pol) Diameter 30 mm Dimensions Ø 30 mm Thickness 6.35 mm (0.25") Parallelism < 5' Substrate UV Fused Silica Surface Irregularity < λ/8 (633 nm, Flatness) Surface Quality 20-10 scratch-dig (S1) Clear Aperture 24 mm (Minimum) 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 Multi Wavelength Narrowband Group Delay Dispersion < 10 fs², 20 fs² (45°, 1030 nm, 515 nm, s-pol, p-pol) Chamfer 0.2 - 0.4 mm (45°) Supplier Location Lithuania See product details More from OPTOSHOP
Round Mirror	1064 nm (Center Wavelength)	> 99.8% (1064 nm)	Fused Silica	12 weeks	$ 144.00
Product Code Wavelength Range 1064 nm (Center Wavelength) Center Wavelength 1064 nm Coating AR/Transmissive V-Coating (532 nm) Reflective V-Coating (1064 nm) Reflectance > 99.8% (1064 nm) Transmittance > 80% (532 nm) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 5 mm (Center) Parallelism 5' Substrate Fused Silica Shape Round Angle of Incidence 45° Coating Features Multi Wavelength Narrowband Weight 3 g Center Thickness 5 mm Supplier Location Pennsylvania, USA See product details More from Excelitas
Round Mirror	700 - 10000 nm	> 96% (700 - 2000 nm, Average) > 96% (2000 - 10000 nm, Average)	ZERODUR	In stock	$ 2310.00
Product Code Wavelength Range 700 - 10000 nm Coating Protected Gold Reflectance > 96% (700 - 2000 nm, Average) > 96% (2000 - 10000 nm, Average) Diameter 152.4 mm Dimensions Ø 152.4 mm Thickness 25.4 mm (1") Substrate ZERODUR Surface Irregularity λ/10 (Flatness) Surface Quality 60-40 scratch-dig Clear Aperture 137.16 mm Shape Round Diameter Tolerance +0/-1 mm Thickness Tolerance ±2 mm Damage Threshold Pulsed 0.8 J/cm² (10 ns, 1064 nm) Supplier Location New Jersey, USA See product details More from Edmund Optics