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	Coating	Availability	Price (USD)
D-Shaped Mirror	350 - 400 nm (Coating Range)	> 99% (350 - 400 nm, 0 - 45°, Average) > 99% (350 - 400 nm, 0 - 45°) (s-pol)	Dielectric	In stock	$ 126.12
Product Code Wavelength Range 350 - 400 nm (Coating Range) Coating Dielectric Reflectance > 99% (350 - 400 nm, 0 - 45°, Average) > 99% (350 - 400 nm, 0 - 45°) (s-pol) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 1 J/cm² (0.373 mm, 10 ns, 10 Hz, 355 nm) Surface Quality 10-5 scratch-dig Clear Aperture > 11.43 mm Diameter Tolerance +0/-0.1 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	350 - 400 nm (Coating Range)	> 99% (350 - 400 nm, 0 - 45°, Average) > 99% (350 - 400 nm, 0 - 45°) (s-pol)	Dielectric	In stock	$ 165.01
Product Code Wavelength Range 350 - 400 nm (Coating Range) Coating Dielectric Reflectance > 99% (350 - 400 nm, 0 - 45°, Average) > 99% (350 - 400 nm, 0 - 45°) (s-pol) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 1 J/cm² (0.373 mm, 10 ns, 10 Hz, 355 nm) Surface Quality 10-5 scratch-dig Clear Aperture > 22.86 mm Diameter Tolerance +0/-0.1 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	250 - 450 nm (Coating Range)	> 90% (250 - 450 nm, Average)	UV-Enhanced Aluminum	In stock	$ 42.18
Product Code Wavelength Range 250 - 450 nm (Coating Range) Reflection Wavelength 250 - 450 nm Coating UV-Enhanced Aluminum Reflectance > 90% (250 - 450 nm, Average) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 0.25 J/cm² (0.15 mm, 10 ns, 10 Hz, 266 nm) 0.3 J/cm² (0.381 mm, 10 ns, 10 Hz, 355 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 11.43 mm Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	700 - 10000 nm	> 96% (700 - 2000 nm) > 96% (2000 - 10000 nm, Average, Average)	Protected Gold	In stock	$ 104.00
Product Code Wavelength Range 700 - 10000 nm Coating Protected Gold Reflectance > 96% (700 - 2000 nm) > 96% (2000 - 10000 nm, Average, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6.35 mm (0.25") Parallelism 2' Damage Threshold Pulsed 0.8 J/cm² (10 ns, 1064 nm) Surface Quality 20-10 scratch-dig Thickness Tolerance ±0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (PV, Flatness) Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
D-Shaped Mirror	250 - 450 nm (Coating Range)	> 90% (250 - 450 nm, Average)	UV-Enhanced Aluminum	In stock	$ 60.59
Product Code Wavelength Range 250 - 450 nm (Coating Range) Reflection Wavelength 250 - 450 nm Coating UV-Enhanced Aluminum Reflectance > 90% (250 - 450 nm, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 0.25 J/cm² (0.15 mm, 10 ns, 10 Hz, 266 nm) 0.3 J/cm² (0.381 mm, 10 ns, 10 Hz, 355 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 22.86 mm Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	450 - 20000 nm (Coating Range)	> 97.5% (450 - 2000 nm, Average) > 96% (2000 - 20000 nm, Average)	Protected Silver	In stock	$ 66.82
Product Code Wavelength Range 450 - 20000 nm (Coating Range) Reflection Wavelength 450 - 2000 nm 2000 - 20000 nm Coating Protected Silver Reflectance > 97.5% (450 - 2000 nm, Average) > 96% (2000 - 20000 nm, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 0.225 J/cm² (0.167 mm, 99 fs, 1 kHz, 800 nm) 1 J/cm² (1.01 mm, 10 ns, 10 Hz, 1064 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 22.86 mm Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	1280 - 1600 nm (Coating Range)	> 99% (1280 - 1600 nm, 0 - 45°, Average) > 99% (1280 - 1600 nm, 0 - 45°) (s-pol)	Dielectric	In stock	$ 157.71
Product Code Wavelength Range 1280 - 1600 nm (Coating Range) Coating Dielectric Reflectance > 99% (1280 - 1600 nm, 0 - 45°, Average) > 99% (1280 - 1600 nm, 0 - 45°) (s-pol) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 2.5 J/cm² (0.181 mm, 10 ns, 10 Hz, 1542 nm) Surface Quality 10-5 scratch-dig Clear Aperture > 22.86 mm Diameter Tolerance +0/-0.1 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	750 - 1000 nm	-	Enhanced Silver	In stock	$ 49.41
Product Code Wavelength Range 750 - 1000 nm Coating Enhanced Silver Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6 mm Surface Quality 40-20 scratch-dig Clear Aperture > 11.43 mm Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Applications Ultrafast Laser Optics Angle of Incidence 45° Group Delay Dispersion < 20 fs² (45°, s-pol) < 30 fs² (45°, p-pol) Wedge < 5' Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (632.8 nm, Front, PV, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	750 - 1000 nm	-	Enhanced Silver	In stock	$ 71.36
Product Code Wavelength Range 750 - 1000 nm Coating Enhanced Silver Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6 mm Surface Quality 40-20 scratch-dig Clear Aperture > 22.86 mm Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Applications Ultrafast Laser Optics Angle of Incidence 45° Group Delay Dispersion < 20 fs² (45°, s-pol) < 30 fs² (45°, p-pol) Wedge < 5' Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (632.8 nm, Front, PV, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	450 - 650 nm	> 95% (450 - 650 nm, Average)	UV-Enhanced Aluminum	Contact Supplier	$ 82.00
Product Code Wavelength Range 450 - 650 nm Coating UV-Enhanced Aluminum Reflectance > 95% (450 - 650 nm, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6.35 mm (0.25") Parallelism 2' Damage Threshold Pulsed 0.2 J/cm² (10 ns, 532 nm) Surface Quality 20-10 scratch-dig Thickness Tolerance ±0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (PV, Flatness) Bevels Protective bevel as needed Supplier Location New Jersey, USA See product details More from Edmund Optics
D-Shaped Mirror	400 - 750 nm (Coating Range)	> 99% (400 - 750 nm, 0 - 45°, Average) > 99% (400 - 750 nm, 0 - 45°) (s-pol)	Dielectric	In stock	$ 74.25
Product Code Wavelength Range 400 - 750 nm (Coating Range) Coating Dielectric Reflectance > 99% (400 - 750 nm, 0 - 45°, Average) > 99% (400 - 750 nm, 0 - 45°) (s-pol) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 0.25 J/cm² (0.803 mm, 10 ns, 10 Hz, 532 nm) Surface Quality 10-5 scratch-dig Clear Aperture > 11.43 mm Diameter Tolerance +0/-0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	2000 - 20000 nm (Coating Range)	> 98% (Average) > 95% (2000 - 20000 nm)	Enhanced Gold	In stock	$ 63.79
Product Code Wavelength Range 2000 - 20000 nm (Coating Range) Reflection Wavelength 2000 - 20000 nm Coating Enhanced Gold Reflectance > 98% (Average) > 95% (2000 - 20000 nm) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 0.1 J/cm² (1.06 mm, 10 ns, 10 Hz, 1064 nm) 3 J/cm² (1.29 mm, 100 ns, 1 Hz, 10600 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 11.43 mm Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	750 - 1100 nm (Coating Range)	> 99% (750 - 1100 nm, 0 - 45°, Average) > 99% (750 - 1100 nm, 0 - 45°) (s-pol)	Dielectric	In stock	$ 97.11
Product Code Wavelength Range 750 - 1100 nm (Coating Range) Coating Dielectric Reflectance > 99% (750 - 1100 nm, 0 - 45°, Average) > 99% (750 - 1100 nm, 0 - 45°) (s-pol) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 0.205 J/cm² (0.166 mm, 99 fs, 1 kHz, 800 nm) 1 J/cm² (0.133 mm, 10 ns, 10 Hz, 810 nm) 0.5 J/cm² (0.433 mm, 10 ns, 10 Hz, 1064 nm) Surface Quality 10-5 scratch-dig Clear Aperture > 22.86 mm Diameter Tolerance +0/-0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	800 - 20000 nm (Coating Range)	> 96% (800 - 20000 nm, Average)	Protected Gold	In stock	$ 72.77
Product Code Wavelength Range 800 - 20000 nm (Coating Range) Reflection Wavelength 800 - 20000 nm Coating Protected Gold Reflectance > 96% (800 - 20000 nm, Average) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 2 J/cm² (1 mm, 10 ns, 10 Hz, 1064 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 22.86 mm Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	800 - 20000 nm (Coating Range)	> 96% (800 - 20000 nm, Average)	Protected Gold	In stock	$ 49.61
Product Code Wavelength Range 800 - 20000 nm (Coating Range) Reflection Wavelength 800 - 20000 nm Coating Protected Gold Reflectance > 96% (800 - 20000 nm, Average) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 2 J/cm² (1 mm, 10 ns, 10 Hz, 1064 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 11.43 mm Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	450 - 20000 nm (Coating Range)	> 97.5% (450 - 2000 nm, Average) > 96% (2000 - 20000 nm, Average)	Protected Silver	2 weeks	$ 44.54
Product Code Wavelength Range 450 - 20000 nm (Coating Range) Reflection Wavelength 450 - 2000 nm 2000 - 20000 nm Coating Protected Silver Reflectance > 97.5% (450 - 2000 nm, Average) > 96% (2000 - 20000 nm, Average) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 0.225 J/cm² (0.167 mm, 99 fs, 1 kHz, 800 nm) 1 J/cm² (1.01 mm, 10 ns, 10 Hz, 1064 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 11.43 mm Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	400 - 750 nm (Coating Range)	> 99% (400 - 750 nm, 0 - 45°, Average) > 99% (400 - 750 nm, 0 - 45°) (s-pol)	Dielectric	In stock	$ 97.11
Product Code Wavelength Range 400 - 750 nm (Coating Range) Coating Dielectric Reflectance > 99% (400 - 750 nm, 0 - 45°, Average) > 99% (400 - 750 nm, 0 - 45°) (s-pol) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 0.25 J/cm² (0.803 mm, 10 ns, 10 Hz, 532 nm) Surface Quality 10-5 scratch-dig Clear Aperture > 22.86 mm Diameter Tolerance +0/-0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	750 - 1100 nm (Coating Range)	> 99% (750 - 1100 nm, 0 - 45°, Average) > 99% (750 - 1100 nm, 0 - 45°) (s-pol)	Dielectric	In stock	$ 74.25
Product Code Wavelength Range 750 - 1100 nm (Coating Range) Coating Dielectric Reflectance > 99% (750 - 1100 nm, 0 - 45°, Average) > 99% (750 - 1100 nm, 0 - 45°) (s-pol) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 0.205 J/cm² (0.166 mm, 99 fs, 1 kHz, 800 nm) 1 J/cm² (0.133 mm, 10 ns, 10 Hz, 810 nm) 0.5 J/cm² (0.433 mm, 10 ns, 10 Hz, 1064 nm) Surface Quality 10-5 scratch-dig Clear Aperture > 11.43 mm Diameter Tolerance +0/-0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	2000 - 20000 nm (Coating Range)	> 98% (Average) > 95% (2000 - 20000 nm)	Enhanced Gold	In stock	$ 87.87
Product Code Wavelength Range 2000 - 20000 nm (Coating Range) Reflection Wavelength 2000 - 20000 nm Coating Enhanced Gold Reflectance > 98% (Average) > 95% (2000 - 20000 nm) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 0.1 J/cm² (1.06 mm, 10 ns, 10 Hz, 1064 nm) 3 J/cm² (1.29 mm, 100 ns, 1 Hz, 10600 nm) Surface Quality 40-20 scratch-dig Clear Aperture > 22.86 mm Diameter Tolerance +0/-0.1 mm Thickness Tolerance ±0.2 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs
D-Shaped Mirror	1280 - 1600 nm (Coating Range)	> 99% (1280 - 1600 nm, 0 - 45°, Average) > 99% (1280 - 1600 nm, 0 - 45°) (s-pol)	Dielectric	In stock	$ 120.57
Product Code Wavelength Range 1280 - 1600 nm (Coating Range) Coating Dielectric Reflectance > 99% (1280 - 1600 nm, 0 - 45°, Average) > 99% (1280 - 1600 nm, 0 - 45°) (s-pol) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 6 mm Parallelism < 5' Damage Threshold Pulsed 2.5 J/cm² (0.181 mm, 10 ns, 10 Hz, 1542 nm) Surface Quality 10-5 scratch-dig Clear Aperture > 11.43 mm Diameter Tolerance +0/-0.1 mm Shape D-Shaped Substrate Fused Silica Surface Irregularity λ/10 (633 nm, Front, Flatness) Supplier Location New Jersey, USA See product details More from Thorlabs