Gold Mirror, Borofloat, 25.4 mm, λ/10, 650-20,000 nm

The 10D20ER.4 Broadband Gold Mirror is an excellent general purpose, broadband reflector. This 25.4 mm (1.0 inch) diameter mirror is made from a 6.0 mm thick Borofloat® 33 substrate which is coated with the ER.4 gold coating. Borofloat® 33 has low thermal expansion and is an excellent substrate for most applications. The ER.4 protected gold coating is ideal for applications requiring broadband reflectance in the near IR to the far IR. A multilayer dielectric overcoat provides protection to the gold from the environment. The 10D20ER.4 has an average reflectivity greater than 96% from 650–1700 nm and greater than 98% from 1.7–20 μm. This mirror has a λ/10 surface flatness and a 15-5 surface quality. This product is also available in 10-piece saving pack .

Specifications

Technical Specs

Wavelength Region
Broadband
Wavelength Range
650-20000 nm
Mirror Shape
Round
Diameter
25.4 mm
Mirror Size
Ø25.4 mm
Thickness
6.0 mm
Material
Borofloat® 33
Coating Type
Protected Gold
Coating Code
ER.4
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10 at 632.8 nm
Angle of Incidence
0-45°

Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>96%, R_min>92% @ 650-1700 nmR_avg>98%, R_min>96% @ 1.7-20 µm
Damage Threshold
0.5 J/cm² with 10 ns pulses at 1064 nm, 20Hz
Diameter Tolerance
+0/-0.13 mm
Thickness Tolerance
±0.25 mm
Chamfers
0.25–0.76 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Wavelength Region
Broadband
Wavelength Range
650-20000 nm
Mirror Shape
Round
Diameter
25.4 mm
Mirror Size
Ø25.4 mm
Thickness
6.0 mm
Material
Borofloat® 33
Coating Type
Protected Gold
Coating Code
ER.4
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10 at 632.8 nm
Angle of Incidence
0-45°

Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>96%, R_min>92% @ 650-1700 nmR_avg>98%, R_min>96% @ 1.7-20 µm
Damage Threshold
0.5 J/cm² with 10 ns pulses at 1064 nm, 20Hz
Diameter Tolerance
+0/-0.13 mm
Thickness Tolerance
±0.25 mm
Chamfers
0.25–0.76 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Resources & Downloads

Other

10D20ER.4 RoHS Certificate(703.6 kB, PDF)
ER.4 Raw Data.xlsx(223.5 kB, XLSX)

Related Products

Similar

Description	Compatibility	Avail.	Price
10Z20ER.4Gold Mirror, Zerodur, 25.4 mm, λ/10, 650-20,000 nm	UNIVERSAL	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$153
10Z40ER.4Gold Mirror, Zerodur, 25.4 mm, λ/20, 650-20,000 nm	UNIVERSAL	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$226
10D20ER.2Silver Mirror, Borofloat, 25.4 mm, λ/10, 480-20,000 nm	UNIVERSAL	4 Weeks FREE 2-day shipping on thousands of products on Newport.com Learn More	$106
10Q20BB.2Dielectric Mirror, Ultra-broadband, 25.4 mm, 99% 0-50°, 610-1130 nm	UNIVERSAL	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$493

Compatible

	Compare	Description	Compatibility	Drawings, CAD & Specs	Avail.	Price
		U100-A2KMirror Mount, ULTIMA^®, Clear Edge, 1.0 in., 2 Locking Knobs	UNIVERSAL		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$150
		U100-A2HMirror Mount, ULTIMA^®, Clear Edge, 1.0 in., 2 Locking Allen-Keys	UNIVERSAL		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$154