Elliptical Mirror, Broadband Dielectric, 46.7 x 66.04 mm, 700-950 nm
Elliptical Mirror, Broadband Dielectric, 46.7 x 66.04 mm, 700-950 nm
Model: 18E20BD.2
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Product Series Overview
Elliptical Broadband Dielectric MirrorsThe 18E20BD.2 Broadband Dielectric Elliptical Mirror is an extremely versatile mirror for laboratory applications and highly efficient over a broad wavelength range. This 1.838 inch (46.70 mm) minor axis, 2.60 inch (66.04 mm) major axis, elliptical mirror is made from a 12.45 mm thick Borofloat® 33 substrate. Borofloat® 33 has low thermal expansion and is an excellent substrate for most applications. Our BD.2 coating offers high reflectance for near infrared diode laser applications. The BD-2 coating is extremely durable and will withstand repeated cleaning. This mirror has a λ/10 substrate surface flatness and a 15-5 surface quality.
Specifications
- Wavelength RegionNIR
- Wavelength Range700-950 nm
- Mirror ShapeElliptical
- Mirror Size46.7 x 66.04 mm
- Thickness12.5 mm
- MaterialBorofloat® 33
- Coating TypeBroadband Dielectric
- Coating CodeBD.2
- Surface Quality15-5 scratch-dig
- Surface Flatnessλ/10 at 632.8 nm
- Substrate Number18E20
- Angle of Incidence0-45°
- Clear Aperture≥central 80% of diameter
- Back SurfaceGround
- ReflectivityRs (avg)>99%, Rp (ave)>97% @ 700-950 nm,R(avg)>80% at 632.8 nm
- Damage Threshold1000 W/cm² CW, 4 J/cm², 10 ns pulses, 10 Hz, at 800 nm
- Thickness Tolerance±0.25 mm
- Chamfers0.38–1.14 mm face width
- Chamfers Angle Tolerance45° ±15°
- Cleaning
- Minor Axis46.70 mm
- Major Axis66.04 mm
Resources & Downloads
3D Product Models
Other
18E20BD.2 RoHS Certificate(264.2 kB, PDF) 18E20BD.2_ROHS2-2021.pdf(280.4 kB, PDF) BD.2 Raw Data.xlsx(82.6 kB, XLSX)
