Dielectric Mirror, Broadband, 19.05 mm Diameter, 488-694 nm
Dielectric Mirror, Broadband, 19.05 mm Diameter, 488-694 nm
Model: 07D20BD.1
Product Series Overview
Standard Borofloat 33 Dielectric MirrorsThe 07D20BD.1 Broadband Dielectric Mirror is an extremely versatile mirror for laboratory applications and highly efficient over a broad wavelength range. This 3/4 inch (19.05 mm) diameter mirror is made from a 4.57 mm thick Borofloat® 33 substrate. Borofloat® 33 has low thermal expansion and is an excellent substrate for most applications. The BD-1 coating is extremely durable and will withstand repeated cleaning. This mirror has a λ/10 surface flatness and a 15-5 surface quality.
Borofloat® 33 Substrates
Borofloat 33 is a high quality borosilicate glass that offers low thermal expansion and high thermal shock resistance. Its material properties and moderate cost make Borofloat 33 an ideal substrate for general purpose applications. For more information, please see our Optical Materials technical note.
Visible Broadband Dielectric Coating
Our BD.1 visible broadband dielectric coating reflects all visible laser lines in the range of 488 to 694 nm with greater than 99% efficiency for s-polarization and 98% for p-polarization at 0 - 45° angle of incidence.
Specifications
- Wavelength RegionVIS
- Wavelength Range488-694 nm
- Mirror ShapeRound
- Diameter19.05 mm
- Mirror SizeØ19.05 mm
- Thickness4.57 mm
- MaterialBorofloat® 33
- Coating TypeBroadband Dielectric
- Coating CodeBD.1
- Surface Quality15-5 scratch-dig
- Surface Flatnessλ/10 at 632.8 nm
- Substrate Number07D20
- Angle of Incidence0-45°
- Clear Aperture≥central 80% of diameter
- Back SurfaceGround
- ReflectivityRs (avg)>99%, Rp (ave)>98% @ 488-694 nm
- Damage Threshold500 W/cm² CW, 3 J/cm², 10 ns pulses, 10 Hz, at 532 nm
- Diameter Tolerance+0/-0.13 mm
- Thickness Tolerance±0.25 mm
- Chamfers0.25–0.76 mm face width
- Chamfers Angle Tolerance45° ±15°
- Cleaning
Resources & Downloads
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