Sorry, this product is no longer offered for sale. The recommended replacement product is 30Z20AL.2.

UV Aluminum Mirror, Zerodur, 76.2 mm, λ/20, 250-600 nm

High-Performance Zerodur Metallic Mirrors

The 30Z40AL.2 Broadband UV Enhanced Aluminum Mirror is an excellent general purpose, broadband reflector. This 76.2 mm (3.0 inch) diameter mirror is made from a 14.7 mm thick Zerodur substrate. Zerodur, a glass-ceramic material, exhibits nominally zero thermal expansion which provides extra stability for applications requiring diffraction limited performance. The AL.2 UV enhanced aluminum coating is a durable, broadband UV reflector with an average reflectivity greater than 90% from 250-600 nm. The AL.2 aluminum coating contains a durable dielectric overcoat to prevent oxidation of the metal. This mirror has a λ/20 surface flatness and a 10-2 surface quality.

Specifications

Technical Specs

Wavelength Region
UV
Wavelength Range
250-600 nm
Mirror Shape
Round
Diameter
76.2 mm
Mirror Size
Ø76.2 mm
Thickness
14.7 mm
Material
Zerodur^® or equivalent
Coating Type
UV Enhanced Aluminum
Coating Code
AL.2
Surface Quality
10-2 scratch-dig
Surface Flatness
λ/20 at 632.8 nm
Angle of Incidence
0-45°

Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>90% @ 250-600 nm
Damage Threshold
2 J/cm² with 10 ns pulses at 355 nm, 20Hz
Diameter Tolerance
+0/-0.13 mm
Thickness Tolerance
±0.25 mm
Chamfers
0.38–1.14 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Wavelength Region
UV
Wavelength Range
250-600 nm
Mirror Shape
Round
Diameter
76.2 mm
Mirror Size
Ø76.2 mm
Thickness
14.7 mm
Material
Zerodur^® or equivalent
Coating Type
UV Enhanced Aluminum
Coating Code
AL.2
Surface Quality
10-2 scratch-dig
Surface Flatness
λ/20 at 632.8 nm
Angle of Incidence
0-45°

Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>90% @ 250-600 nm
Damage Threshold
2 J/cm² with 10 ns pulses at 355 nm, 20Hz
Diameter Tolerance
+0/-0.13 mm
Thickness Tolerance
±0.25 mm
Chamfers
0.38–1.14 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Resources & Downloads

Other

30Z40AL.2 RoHS Certificate(265.4 kB, PDF)
AL.2 Raw Data.xlsx(236.6 kB, XLSX)

Related Products

Similar

Description	Compatibility	Avail.	Price
30D20ER.4Gold Mirror, Borofloat, 76.2 mm, λ/10, 650-20,000 nm	UNIVERSAL	In Stock	$803
30D20BD.1Dielectric Mirror, Broadband, 76.2 mm, λ/10, 488-694 nm	UNIVERSAL	In Stock	$622
30D20ER.1Aluminum Mirror, Borofloat, 76.2 mm, λ/10, 450-700 nm	UNIVERSAL	In Stock	$511
30D20BD.2Dielectric Mirror, Broadband, 76.2 mm, 700-950 nm	UNIVERSAL	In Stock	$716
30Z20ER.2Silver Mirror, Zerodur, 76.2 mm, λ/10, 480-20,000 nm	UNIVERSAL	In Stock	$882

Compatible

Description	Compatibility	Avail.	Price
SL76.2BMGimbal Optical Mount, 3.0 in. Diameter, (2) BM Micrometers	UNIVERSAL	Contact Us FREE 2-day shipping on thousands of products on Newport.com Learn More	$1,916
U300-A3KMirror Mount, ULTIMA^®, Clear Edge, 3.0 in., 3 Locking Knobs	UNIVERSAL	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$359
SL8ABHCGimbal Optical Mount, Ø3.15 in., 2 BHC Locking Allen-Key Screws	UNIVERSAL	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$2,523
U300-AC3KMirror Mount, ULTIMA^®, Center, 3.0 in., 3 Locking Knob Adjustment	UNIVERSAL	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$594