Dielectric Mirror, Laser Line, 30.0 mm, λ/10, 488-514.5 nm

The 3MD20DM.5 Laser Line Dielectric mirror is a highly efficient reflector optimized for a narrow 488-514.5 nm wavelength range. This 1.181 inch (30.0 mm) diameter mirror is made from a 6.0 mm thick Borofloat® 33 substrate. Borofloat has low thermal expansion and is an excellent substrate for most applications. The DM.5 coating is designed for use with Argon-Ion lasers and has a center wavelength of 488 & 514.5 nm. The coating achieves greater than 99% reflectance, from 0–45° angle of incidence, for any polarization. This multilayer dielectric coating is extremely durable, making it resistant to damage from repeated cleaning. This mirror has a λ/10 surface flatness and a 15-5 surface quality.
Specifications
- Wavelength RegionVIS
- Wavelength Range488-514.5 nm
- Mirror ShapeRound
- Diameter30.0 mm
- MaterialBorofloat® 33
- Coating TypeLaser Line Dielectric
- Coating CodeDM.5
- ReflectivityRs, Rp>99% @ 488-514.5 nm
- Surface Quality15-5 scratch-dig
- Surface Flatnessλ/10 at 632.8 nm
- Substrate Number3MD20
- Angle of Incidence0-45°
- Clear Aperture≥central 80% of diameter
- Back SurfaceGround
- Thickness6.0 mm
- Thickness Tolerance±0.25 mm
- Diameter Tolerance+0/-0.13 mm
- Chamfers0.38–1.14 mm face width
- Chamfers Angle Tolerance45° ±15°
- Cleaning
- Damage Threshold500 W/cm2 CW, 1 J/cm2 for 10 nsec pulses

Resources & Downloads
Other
3MD20DM.5 RoHS Certificate(704.3 kB, PDF) DM.5 Raw Data.xlsx(59.3 kB, XLSX)
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