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	1280 - 1600 nm	> 99% (Unpolarized)	ZERODUR	In stock	$ 146.12
Product Code Wavelength Range 1280 - 1600 nm Coating Dielectric Reflectance > 99% (Unpolarized) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Parallelism < 3' Substrate ZERODUR Surface Irregularity λ/10 (632.8 nm, PV, Flatness) Surface Quality 10-5 scratch-dig Clear Aperture > 10.795 mm 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	532 nm, 1064 nm	99.5% (Average Polarization)	BK7	4 - 5 days	$ 104.00
Product Code Wavelength Range 532 nm, 1064 nm Center Wavelength 1064 nm, 532 nm Coating Dielectric Reflectance 99.5% (Average Polarization) 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 Angle of Incidence 45° Shape Round Diameter Tolerance +0/-0.12 mm Thickness Tolerance ±0.25 mm Damage Threshold Pulsed 3 J/cm² (8 ns, 1064 nm) 5 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	390 - 440 nm	> 99.9% (0°, 390 - 440 nm, Front)	Fused Silica	Contact Supplier	$ 187.21
Product Code Wavelength Range 390 - 440 nm Center Wavelength 390 - 440 nm Reflection Wavelength 390 - 440 nm Coating BBHR (390 - 440 nm) Reflectance > 99.9% (0°, 390 - 440 nm, Front) Diameter 6.35 mm (0.25") Dimensions Ø 6.35 mm (0.25") Thickness 4 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) Angle of Incidence 0° Shape Round Diameter Tolerance +0.05/-0.05 mm Thickness Tolerance ±0.1 mm Coating Features Broadband Laser Type Ti:Sa Supplier Location Germany See product details More from LAYERTEC
Round Mirror	-	-	-	Contact Supplier	$ 622.20
Product Code Coating Enhanced Gold Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Shape Round Supplier Location New Jersey, USA See product details More from Thorlabs
Round Mirror	1064 nm (Front, Center Wavelength)	> 99.8% (45°, 1064 nm)	UV Fused Silica	In stock	$ 164.52
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 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) Angle of Incidence 45° Shape Round Diameter Tolerance +0/-0.1 mm Coating Features Narrowband Supplier Location Germany See product details More from LASEROPTIK
Round Mirror	250 - 270 nm (±20 fs²)	> 99% (±20 fs², 250 - 270 nm)	UV Fused Silica	In stock	$ 94.25
Product Code Wavelength Range 250 - 270 nm (±20 fs²) Reflection Wavelength 250 - 270 nm Coating Dielectric Reflectance > 99% (±20 fs², 250 - 270 nm) 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) Surface Quality 20-10 scratch-dig Clear Aperture > 22.86 mm Angle of Incidence 0° Shape Round Perpendicularity ±5' Chamfer 0.1 - 0.3 mm (45°) Supplier Location Lithuania See product details More from Photonic Solutions
Round Mirror	630 - 1030 nm	> 99% (630 - 1030 nm) (s-pol)	UV Fused Silica	Contact Supplier	Add to cart to request quote
Product Code Manufacturer Optoman Wavelength Range 630 - 1030 nm Center Wavelength 630 - 1030 nm Coating BBHR (630 - 1030 nm) Uncoated (Rear) Coating Method Ion Beam Sputtering (Front) Reflectance > 99% (630 - 1030 nm) (s-pol) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6.35 mm (0.25", Edge) Edge Thickness 6.35 mm (0.25") Parallelism < 1' Substrate UV Fused Silica Surface Irregularity < λ/8 (633 nm, over 5 mm, Flatness) Surface Quality 20-10 scratch-dig (S1) Clear Aperture > 10 mm Angle of Incidence 45° Shape Round Diameter Tolerance +0/-0.1 mm Coating Features Broadband Group Delay Dispersion < 200 fs² (10°, 610 - 1050 nm, s-pol, Reflection) < 125 fs² (45°, 610 - 1050 nm, s-pol, Reflection) Edge Thickness Tolerance ±0.1 mm Chamfer 0.2 - 0.4 mm (45°) Supplier Location Lithuania See product details More from OPTOSHOP
Round Mirror	220 - 3000 nm	> 85% (230 - 400 nm) > 88% (300 nm)	Low Expansion Material	12 weeks	$ 98.00
Product Code Wavelength Range 220 - 3000 nm Center Wavelength 230 - 400 nm Coating UV-Enhanced Aluminum Reflectance > 85% (230 - 400 nm) > 88% (300 nm) Diameter 50 mm Dimensions Ø 50 mm Thickness 10 mm (Center) Substrate Low Expansion Material Surface Irregularity λ, 10λ (Flatness) Angle of Incidence 45° Shape Round Damage Threshold Pulsed 0.2 J/cm² (30 ns, 10 Hz, 193 nm) Center Thickness 10 mm Supplier Location Pennsylvania, USA See product details More from Excelitas
Round Mirror	-	-	Synthetic Fused Silica	6 - 12 weeks	$ 189.00
Product Code Coating Protected Aluminum Diameter 30 mm Dimensions Ø 30 mm Thickness 5 mm Substrate Synthetic Fused Silica Surface Irregularity λ/10 (Flatness) Surface Quality 40-20 scratch-dig Angle of Incidence 0° Shape Round Damage Threshold Pulsed 0.25 J/cm² Weight 20 g Rear Surface Polished Supplier Location California, USA See product details More from OptoSigma
Round Mirror	450 - 10000 nm	> 98% (450 - 2000 nm) > 98% (2000 - 10000 nm, Average, Average)	Fused Silica	In stock	$ 165.00
Product Code Wavelength Range 450 - 10000 nm Coating Protected Silver Reflectance > 98% (450 - 2000 nm) > 98% (2000 - 10000 nm, Average, Average) Diameter 35 mm Dimensions Ø 35 mm Thickness 5 mm Parallelism 30'' Substrate Fused Silica Surface Irregularity λ/10 (PV, Flatness) Surface Quality 20-10 scratch-dig Clear Aperture 31.5 mm Shape Round Diameter Tolerance +0/-0.2 mm Thickness Tolerance ±0.2 mm Damage Threshold Pulsed 0.5 J/cm² (10 ns, 532 nm, 1064 nm) Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
Round Mirror	2100 nm	82% (0°, 2100 nm, Front) < 0.25% (0°, 2100 nm, Rear)	Infrasil	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 2100 nm Center Wavelength 2100 nm Reflection Wavelength 2100 nm Coating Partial Reflector (2100 nm) AR/Transmissive V-Coating (2100 nm) (Rear) Reflectance 82% (0°, 2100 nm, Front) < 0.25% (0°, 2100 nm, Rear) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") 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) 5/1x0.025; L1x0.004 (Front), 5/1x0.025; L1x0.004 (Rear) (ISO-7) Angle of Incidence 0° Shape Round Diameter Tolerance +0.05/-0.05 mm Thickness Tolerance ±0.1 mm Applications Cavity Output Coupler Coating Features Multi Wavelength Narrowband Laser Type Ho:YAG Split Ratio (R:T) 82:18 (2100 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	310 - 2700 nm	95% (1064 nm)	BK7	4 - 5 days	$ 104.00
Product Code Wavelength Range 310 - 2700 nm Reflectance 95% (1064 nm) Transmittance 5% Dimensions Ø 12.7 x 3 mm Thickness 3 mm Parallelism 30'' Substrate BK7 Surface Irregularity λ/10 (633 nm, Flatness) λ/10 (633 nm, Coated Surface) Surface Quality 20-10 scratch-dig (S1) 20-10 scratch-dig (S2) Clear Aperture 10.795 x 2.55 mm Angle of Incidence 0 - 8° 0° Shape Round Diameter Tolerance +0/-0.12 mm Damage Threshold Pulsed > 3 J/cm² (8 ns, 1064 nm) > 6 J/cm² (8 ns, 1064 nm) Applications Cavity Output Coupler Laser Type Nd:YAG Back Side Reflectance < 0.2% Chamfer 0.3 mm (45°) Transmittance Tolerance ±2% Reflectance Tolerance ±2% Supplier Location Lithuania See product details More from EKSMA Optics
Round Mirror	700 - 900 nm	> 99.9% (700 - 900 nm) (s-pol) > 99.5% (730 - 870 nm) (p-pol)	UV Fused Silica	In stock	$ 175.86
Product Code Manufacturer Optoman Wavelength Range 700 - 900 nm Center Wavelength 700 - 900 nm Coating BBHR (700 - 900 nm) BBHR (730 - 870 nm) Uncoated (Rear) Coating Method Ion Beam Sputtering (Front) Reflectance > 99.9% (700 - 900 nm) (s-pol) > 99.5% (730 - 870 nm) (p-pol) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6.35 mm (0.25") Parallelism < 30'' Substrate UV Fused Silica Surface Irregularity < λ/6 (633 nm, over 15 mm, Flatness) Surface Quality 20-10 scratch-dig (S1) Clear Aperture > 22.86 mm Angle of Incidence 45° Shape Round Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.1 mm Damage Threshold Pulsed > 0.2 J/cm² (100 fs, 100 Hz, 800 nm, p-pol) Applications Ultrafast Laser Optics Coating Features Broadband, Multi Wavelength Laser Type Ti:Sa Group Delay Dispersion < 20 fs² (s-pol) Chamfer 0.1 - 0.4 mm (45°) Supplier Location Lithuania See product details More from OPTOSHOP
Round Mirror	458 - 528 nm	99.5% (Average, Unpolarized) > 99.5% (Average, s-pol) > 99% (Average, p-pol)	Fused Silica	In stock	$ 161.56
Product Code Wavelength Range 458 - 528 nm Coating Dielectric Reflectance 99.5% (Average, Unpolarized) > 99.5% (Average, s-pol) > 99% (Average, p-pol) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6 mm Parallelism < 3' Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Surface Quality 10-5 scratch-dig Clear Aperture > 20.32 mm Angle of Incidence 0 - 45° 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	1064 nm	> 99.95% (1064 nm, Average)	UV Fused Silica	In stock	$ 395.40
Product Code Wavelength Range 1064 nm Reflection Wavelength 1064 nm Coating Dielectric Reflectance > 99.95% (1064 nm, Average) Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Thickness 9.5 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 > 45.72 mm Angle of Incidence 45° Shape Round Perpendicularity ±5' Chamfer 0.1 - 0.3 mm (45°) Supplier Location Lithuania See product details More from Photonic Solutions
Round Mirror	1064 nm (Front, Center Wavelength)	> 99.5% (45°, 1064 nm)	UV Fused Silica	In stock	$ 363.07
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 > 99.5% (45°, 1064 nm) Diameter 50 mm Dimensions Ø 50 mm Thickness 9.5 mm Parallelism < 5' Substrate UV Fused Silica Surface Irregularity λ/10 (546 nm, Flatness) Surface Quality 10-5 scratch-dig 5/3x0.040 (ISO-7) Angle of Incidence 45° Shape Round Diameter Tolerance +0/-0.1 mm Coating Features High Power, Narrowband Supplier Location Germany See product details More from LASEROPTIK
Round Mirror	400 - 700 nm	> 85% (400 - 700 nm, Average)	Soda-Lime Float Glass	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 400 - 700 nm Coating Protected Aluminum Reflectance > 85% (400 - 700 nm, Average) Diameter 25 mm Dimensions Ø 25 mm Substrate Soda-Lime Float Glass Surface Irregularity 4 - 6λ (Flatness) Clear Aperture 22.5 mm Angle of Incidence 45° Shape Round Quality 80-50 Supplier Location Vermont, USA See product details More from omega optical
Round Mirror	1010 - 1050 nm	> 99.95% (1010 - 1050 nm) (s-pol) > 99.9% (1010 - 1050 nm) (p-pol)	UV Fused Silica	In stock	$ 96.44
Product Code Manufacturer Optoman Wavelength Range 1010 - 1050 nm Center Wavelength 1010 - 1050 nm Coating BBHR (1010 - 1050 nm) Uncoated (Rear) Coating Method Ion Beam Sputtering (Front) Reflectance > 99.95% (1010 - 1050 nm) (s-pol) > 99.9% (1010 - 1050 nm) (p-pol) 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/8 (633 nm, over 10 mm, Flatness) Surface Quality 10-5 scratch-dig (S1) Clear Aperture > 11.43 mm Angle of Incidence 45° Shape Round Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.1 mm Damage Threshold Pulsed > 0.4 J/cm² (500 fs, 10 kHz, 1030 nm, p-pol) > 0.7 J/cm² (500 fs, 10 kHz, 1030 nm, s-pol) > 2 J/cm² (10 ps, 10 kHz, 1030 nm, p-pol) > 3 J/cm² (10 ps, 10 kHz, 1030 nm, s-pol) Applications Ultrafast Laser Optics Coating Features Broadband Laser Type Yb:KGW, Yb:KYW, Yb:YAG Group Delay Dispersion < 10 fs² (s-pol) < 20 fs² (p-pol) Chamfer 0.1 - 0.4 mm (45°) Supplier Location Lithuania See product details More from OPTOSHOP
Round Mirror	355 nm (Center Wavelength)	99.9%	Fused Silica	Contact Supplier	$ 173.00
Product Code Wavelength Range 355 nm (Center Wavelength) Center Wavelength 355 nm Coating Dielectric Reflectance 99.9% Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6.35 mm (0.25") Parallelism < 3' Substrate Fused Silica Surface Quality 10-5 scratch-dig Clear Aperture 21.59 mm Angle of Incidence 45° Shape Round Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Damage Threshold Pulsed 7.5 J/cm² (20 ns, 20 Hz, 355 nm) Supplier Location New Jersey, USA See product details More from Edmund Optics
Round Mirror	1010 - 1050 nm	> 99.95% (1010 - 1050 nm)	UV Fused Silica	In stock	$ 132.75
Product Code Wavelength Range 1010 - 1050 nm Reflection Wavelength 1010 - 1050 nm Coating Dielectric Reflectance > 99.95% (1010 - 1050 nm) 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 Angle of Incidence 0 - 10° Shape Round Perpendicularity ±5' Chamfer 0.1 - 0.3 mm (45°) Supplier Location Lithuania See product details More from Photonic Solutions