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Zerodur Broadband Metallic Mirrors

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Overview

Broadband metallic mirrors are excellent general purpose, broadband reflectors covering the UV, visible, and IR. The Zerodur substrate has a nominally zero thermal expansion. This extra stability can be critical for applications requiring diffraction limited performance.

Four metallic coatings cover UV - IR spectral bands
Substrate flatness & surface quality λ/5, 20-10 to λ/20, 10-2
Available in diameter from 25.4 mm to 203.2 mm
Zerodur substrate of nominally zero thermal expansion
Broader bandwidth and less expensive than dielectric coatings
Insensitive to polarization and angle of incidence

See All Features

Products

Compare	Model	Compatibility	rankScore	Wavelength Range	Mirror Size	Thickness	Surface Quality	Surface Flatness	Availability	Price	Brand
10Z20AL.2 UV Aluminum Mirror, Zerodur, 25.4 mm, λ/10, 250-600 nm $131 In Stock	10Z20AL.2 UV Aluminum Mirror, Zerodur, 25.4 mm, λ/10, 250-600 nm	UNIVERSAL	1.0	250-600 nm	Ø25.4 mm	6.0 mm	15-5 scratch-dig	λ/10 at 632.8 nm	In Stock	$131	Newport
10Z20ER.1 Aluminum Mirror, Zerodur, 25.4 mm, λ/10, 450-700 nm $129 In Stock	10Z20ER.1 Aluminum Mirror, Zerodur, 25.4 mm, λ/10, 450-700 nm	UNIVERSAL	1.0	450-700 nm	Ø25.4 mm	6.0 mm	15-5 scratch-dig	λ/10 at 632.8 nm	In Stock	$129	Newport
10Z20ER.2 Silver Mirror, Zerodur, 25.4 mm, λ/10, 480-20,000 nm $143 In Stock	10Z20ER.2 Silver Mirror, Zerodur, 25.4 mm, λ/10, 480-20,000 nm	UNIVERSAL	1.0	480-20000 nm	Ø25.4 mm	6.0 mm	15-5 scratch-dig	λ/10 at 632.8 nm	In Stock	$143	Newport
10Z20ER.4 Gold Mirror, Zerodur, 25.4 mm, λ/10, 650-20,000 nm $149 4 Weeks	10Z20ER.4 Gold Mirror, Zerodur, 25.4 mm, λ/10, 650-20,000 nm	UNIVERSAL	1.0	650-20000 nm	Ø25.4 mm	6.0 mm	15-5 scratch-dig	λ/10 at 632.8 nm	4 Weeks	$149	Newport
10Z40AL.2 UV Aluminum Mirror, Zerodur, 25.4 mm, λ/20, 250-600 nm $219 In Stock	10Z40AL.2 UV Aluminum Mirror, Zerodur, 25.4 mm, λ/20, 250-600 nm	UNIVERSAL	1.0	250-600 nm	Ø25.4 mm	6.0 mm	10-2 scratch-dig	λ/20 at 632.8 nm	In Stock	$219	Newport
10Z40ER.1 Aluminum Mirror, Zerodur, 25.4 mm, λ/20, 450-700 nm $219 In Stock	10Z40ER.1 Aluminum Mirror, Zerodur, 25.4 mm, λ/20, 450-700 nm	UNIVERSAL	1.0	450-700 nm	Ø25.4 mm	6.0 mm	10-2 scratch-dig	λ/20 at 632.8 nm	In Stock	$219	Newport
10Z40ER.2 Silver Mirror, Zerodur, 25.4 mm, λ/20, 480-20,000 nm $219 In Stock	10Z40ER.2 Silver Mirror, Zerodur, 25.4 mm, λ/20, 480-20,000 nm	UNIVERSAL	1.0	480-20000 nm	Ø25.4 mm	6.0 mm	10-2 scratch-dig	λ/20 at 632.8 nm	In Stock	$219	Newport
10Z40ER.4 Gold Mirror, Zerodur, 25.4 mm, λ/20, 650-20,000 nm $219 In Stock	10Z40ER.4 Gold Mirror, Zerodur, 25.4 mm, λ/20, 650-20,000 nm	UNIVERSAL	1.0	650-20000 nm	Ø25.4 mm	6.0 mm	10-2 scratch-dig	λ/20 at 632.8 nm	In Stock	$219	Newport
20Z20AL.2 UV Aluminum Mirror, Zerodur, 50.8 mm, λ/10, 250-600 nm $271 Contact Us	20Z20AL.2 UV Aluminum Mirror, Zerodur, 50.8 mm, λ/10, 250-600 nm	UNIVERSAL	1.0	250-600 nm	Ø50.8 mm	12.7 mm	15-5 scratch-dig	λ/10 at 632.8 nm	Contact Us	$271	Newport
20Z20ER.1 Aluminum Mirror, Zerodur, 50.8 mm, λ/10, 450-700 nm $266 In Stock	20Z20ER.1 Aluminum Mirror, Zerodur, 50.8 mm, λ/10, 450-700 nm	UNIVERSAL	1.0	450-700 nm	Ø50.8 mm	12.7 mm	15-5 scratch-dig	λ/10 at 632.8 nm	In Stock	$266	Newport
20Z20ER.2 Silver Mirror, Zerodur, 50.8 mm, λ/10, 480-20,000 nm $334 In Stock	20Z20ER.2 Silver Mirror, Zerodur, 50.8 mm, λ/10, 480-20,000 nm	UNIVERSAL	1.0	480-20000 nm	Ø50.8 mm	12.7 mm	15-5 scratch-dig	λ/10 at 632.8 nm	In Stock	$334	Newport
20Z20ER.4 Gold Mirror, Zerodur, 50.8 mm, λ/10, 650-20,000 nm $359 In Stock	20Z20ER.4 Gold Mirror, Zerodur, 50.8 mm, λ/10, 650-20,000 nm	UNIVERSAL	1.0	650-20000 nm	Ø50.8 mm	12.7 mm	15-5 scratch-dig	λ/10 at 632.8 nm	In Stock	$359	Newport
20Z40AL.2 UV Aluminum Mirror, Zerodur, 50.8 mm, λ/20, 250-600 nm $449 Contact Us	20Z40AL.2 UV Aluminum Mirror, Zerodur, 50.8 mm, λ/20, 250-600 nm	UNIVERSAL	1.0	250-600 nm	Ø50.8 mm	12.7 mm	10-2 scratch-dig	λ/20 at 632.8 nm	Contact Us	$449	Newport
20Z40ER.1 Aluminum Mirror, Zerodur, 50.8 mm, λ/20, 450-700 nm $432 In Stock	20Z40ER.1 Aluminum Mirror, Zerodur, 50.8 mm, λ/20, 450-700 nm	UNIVERSAL	1.0	450-700 nm	Ø50.8 mm	12.7 mm	10-2 scratch-dig	λ/20 at 632.8 nm	In Stock	$432	Newport
20Z40ER.2 Silver Mirror, Zerodur, 50.8 mm, λ/20, 480-20,000 nm $470 In Stock	20Z40ER.2 Silver Mirror, Zerodur, 50.8 mm, λ/20, 480-20,000 nm	UNIVERSAL	1.0	480-20000 nm	Ø50.8 mm	12.7 mm	10-2 scratch-dig	λ/20 at 632.8 nm	In Stock	$470	Newport
20Z40ER.4 Gold Mirror, Zerodur, 50.8 mm, λ/20, 650-20,000 nm $481 In Stock	20Z40ER.4 Gold Mirror, Zerodur, 50.8 mm, λ/20, 650-20,000 nm	UNIVERSAL	1.0	650-20000 nm	Ø50.8 mm	12.7 mm	10-2 scratch-dig	λ/20 at 632.8 nm	In Stock	$481	Newport
30Z20ER.1 Aluminum Mirror, Zerodur, 76.2 mm, λ/10, 450-700 nm $651 In Stock	30Z20ER.1 Aluminum Mirror, Zerodur, 76.2 mm, λ/10, 450-700 nm	UNIVERSAL	1.0	450-700 nm	Ø76.2 mm	14.7 mm	15-5 scratch-dig	λ/10 at 632.8 nm	In Stock	$651	Newport
30Z20ER.2 Silver Mirror, Zerodur, 76.2 mm, λ/10, 480-20,000 nm $778 Contact Us	30Z20ER.2 Silver Mirror, Zerodur, 76.2 mm, λ/10, 480-20,000 nm	UNIVERSAL	1.0	480-20000 nm	Ø76.2 mm	14.7 mm	15-5 scratch-dig	λ/10 at 632.8 nm	Contact Us	$778	Newport
30Z20ER.4 Gold Mirror, Zerodur, 76.2 mm, λ/10, 650-20,000 nm $821 In Stock	30Z20ER.4 Gold Mirror, Zerodur, 76.2 mm, λ/10, 650-20,000 nm	UNIVERSAL	1.0	650-20000 nm	Ø76.2 mm	14.7 mm	15-5 scratch-dig	λ/10 at 632.8 nm	In Stock	$821	Newport
30Z40ER.1 Aluminum Mirror, Zerodur, 76.2 mm, λ/20, 450-700 nm $850 In Stock	30Z40ER.1 Aluminum Mirror, Zerodur, 76.2 mm, λ/20, 450-700 nm	UNIVERSAL	1.0	450-700 nm	Ø76.2 mm	14.7 mm	10-2 scratch-dig	λ/20 at 632.8 nm	In Stock	$850	Newport
30Z40ER.2 Silver Mirror, Zerodur, 76.2 mm, λ/20, 480-20,000 nm $991 In Stock	30Z40ER.2 Silver Mirror, Zerodur, 76.2 mm, λ/20, 480-20,000 nm	UNIVERSAL	1.0	480-20000 nm	Ø76.2 mm	14.7 mm	10-2 scratch-dig	λ/20 at 632.8 nm	In Stock	$991	Newport
30Z40ER.4 Gold Mirror, Zerodur, 76.2 mm, λ/20, 650-20,000 nm $1,023 In Stock	30Z40ER.4 Gold Mirror, Zerodur, 76.2 mm, λ/20, 650-20,000 nm	UNIVERSAL	1.0	650-20000 nm	Ø76.2 mm	14.7 mm	10-2 scratch-dig	λ/20 at 632.8 nm	In Stock	$1,023	Newport
40Z20ER.1 Aluminum Mirror, Zerodur, 101.6 mm, λ/10, 450-700 nm $1,210 Contact Us	40Z20ER.1 Aluminum Mirror, Zerodur, 101.6 mm, λ/10, 450-700 nm	UNIVERSAL	1.0	450-700 nm	Ø101.6 mm	17.7 mm	20-10 scratch-dig	λ/10 at 632.8 nm	Contact Us	$1,210	Newport
40Z20ER.2 Silver Mirror, Zerodur, 101.6 mm, λ/10, 480-20,000 nm $1,363 In Stock	40Z20ER.2 Silver Mirror, Zerodur, 101.6 mm, λ/10, 480-20,000 nm	UNIVERSAL	1.0	480-20000 nm	Ø101.6 mm	17.7 mm	20-10 scratch-dig	λ/10 at 632.8 nm	In Stock	$1,363	Newport
40Z40AL.2 UV Aluminum Mirror, Zerodur, 101.6 mm, λ/20, 250-600 nm $1,417 3 Weeks	40Z40AL.2 UV Aluminum Mirror, Zerodur, 101.6 mm, λ/20, 250-600 nm	UNIVERSAL	1.0	250-600 nm	Ø101.6 mm	17.7 mm	10-5 scratch-dig	λ/20 at 632.8 nm	3 Weeks	$1,417	Newport
40Z40ER.1 Aluminum Mirror, Zerodur, 101.6 mm, λ/20, 450-700 nm $1,657 In Stock	40Z40ER.1 Aluminum Mirror, Zerodur, 101.6 mm, λ/20, 450-700 nm	UNIVERSAL	1.0	450-700 nm	Ø101.6 mm	17.7 mm	10-5 scratch-dig	λ/20 at 632.8 nm	In Stock	$1,657	Newport
40Z40ER.2 Silver Mirror, Zerodur, 101.6 mm, λ/20, 480-20,000 nm $1,795 In Stock	40Z40ER.2 Silver Mirror, Zerodur, 101.6 mm, λ/20, 480-20,000 nm	UNIVERSAL	1.0	480-20000 nm	Ø101.6 mm	17.7 mm	10-5 scratch-dig	λ/20 at 632.8 nm	In Stock	$1,795	Newport
60Z20ER.2 Silver Mirror, Zerodur, 152.4 mm, λ/10, 480-20,000nm $4,142 In Stock	60Z20ER.2 Silver Mirror, Zerodur, 152.4 mm, λ/10, 480-20,000nm	UNIVERSAL	1.0	480-20000 nm	Ø152.4 mm	23.5 mm	20-10 scratch-dig	λ/10 at 632.8 nm	In Stock	$4,142	Newport
60Z40AL.2 UV Aluminum Mirror, Zerodur, 152.4 mm, λ/20, 250-600 nm $4,141 Contact Us	60Z40AL.2 UV Aluminum Mirror, Zerodur, 152.4 mm, λ/20, 250-600 nm	UNIVERSAL	1.0	250-600 nm	Ø152.4 mm	23.5 mm	10-5 scratch-dig	λ/20 at 632.8 nm	Contact Us	$4,141	Newport
60Z40ER.1 Aluminum Mirror, Zerodur, 152.4 mm, λ/20, 450-700 nm $4,122 In Stock	60Z40ER.1 Aluminum Mirror, Zerodur, 152.4 mm, λ/20, 450-700 nm	UNIVERSAL	1.0	450-700 nm	Ø152.4 mm	23.5 mm	10-5 scratch-dig	λ/20 at 632.8 nm	In Stock	$4,122	Newport
60Z40ER.2 Silver Mirror, Zerodur, 152.4 mm, λ/20, 480-20,000 nm $5,669 In Stock	60Z40ER.2 Silver Mirror, Zerodur, 152.4 mm, λ/20, 480-20,000 nm	UNIVERSAL	1.0	480-20000 nm	Ø152.4 mm	23.5 mm	10-5 scratch-dig	λ/20 at 632.8 nm	In Stock	$5,669	Newport
80Z10ER.1 Aluminum Mirror, Zerodur, 203.2 mm, λ/5, 450-700 nm $7,421 6 Weeks	80Z10ER.1 Aluminum Mirror, Zerodur, 203.2 mm, λ/5, 450-700 nm	UNIVERSAL	1.0	450-700 nm	Ø203.2 mm	29.5 mm	20-10 scratch-dig	λ/5 at 632.8 nm	6 Weeks	$7,421	Newport
80Z20AL.2 UV Aluminum Mirror, Zerodur, Ø203.2 mm, λ/10, 250-600 nm $9,836 In Stock	80Z20AL.2 UV Aluminum Mirror, Zerodur, Ø203.2 mm, λ/10, 250-600 nm	UNIVERSAL	1.0	250-600 nm	Ø203.2 mm	29.5 mm	10-5 scratch-dig	λ/10 at 632.8 nm	In Stock	$9,836	Newport
80Z20ER.1 Aluminum Mirror, Zerodur, 203.2 mm, λ/10, 450-700 nm $9,779 In Stock	80Z20ER.1 Aluminum Mirror, Zerodur, 203.2 mm, λ/10, 450-700 nm	UNIVERSAL	1.0	450-700 nm	Ø203.2 mm	29.5 mm	10-5 scratch-dig	λ/10 at 632.8 nm	In Stock	$9,779	Newport
80Z20ER.2 Silver Mirror, Zerodur, 203.2 mm, λ/10, 480-20,000 nm $11,480 In Stock	80Z20ER.2 Silver Mirror, Zerodur, 203.2 mm, λ/10, 480-20,000 nm	UNIVERSAL	1.0	480-20000 nm	Ø203.2 mm	29.5 mm	10-5 scratch-dig	λ/10 at 632.8 nm	In Stock	$11,480	Newport

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Specifications

Wavelength Region

250-600 nm, 450-700 nm, 480-20000 nm, 650-20000 nm
Mirror Shape

Round
Diameter

25.4 mm, 50.8 mm, 76.2 mm, 101.6 mm, 152.4 mm, 203.2 mm
Thickness

6.0 mm, 12.7 mm, 14.7 mm, 17.7 mm, 23.5 mm, 29.5 mm

Material

Zerodur
Angle of Incidence

0-45°
Clear Aperture

≥central 80% of diameter
Cleaning

See How to Clean Optics

Features

Zerodur® Substrates

Zerodur® is a unique glass-ceramic material with a nearly zero coefficient of thermal expansion and excellent homogeneity of this coefficient throughout its entire piece. It is the best choice when extreme thermal stability is required or for environments with large temperature fluctuations. For more information, please see our Optical Materials technical note.

Enhanced Aluminum UV Coating

Our AL.2 UV enhanced aluminum coating is a durable, broadband UV reflector with average reflectivity greater than 90% from 250 – 600 nm. The aluminum film is overcoated with UV transparent magnesium fluoride to prevent oxidation of the metal.

Enhanced Aluminum VIS-NIR Coating

Our ER.1 enhanced aluminum coating may be used wherever a broadband visible and near infrared reflector is needed. A multilayer dielectric stack deposited over the aluminum film boosts reflectance and improves the durability of the coating. Average reflectivity is greater than 93% from 450-700 nm.

Protected Silver VIS-IR Coating

Our ER.2 protected silver coating is composed of a low emissivity silver film fully encapsulated by a multilayer dielectric stack to prevent oxidation. This coating has excellent broadband reflectivity in the IR, while maintaining very good performance in the visible and near IR. Average reflectivity is greater than 96% from 480 – 1100 nm and greater than 98.5% from 1.1 – 20 µm. This silver mirror is a favorite for Ultrafast scientists who want an inexpensive option.

Protected Gold NIR-IR Coating

Our 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. Average reflectivity is greater than 96% from 650 – 1700 nm and greater than 98% from 1.7 – 2.0 µm.