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| Home > Thin Films > IR Window > IR Window(Germanium) |
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IR Window(Germanium)
A window with a substrate made of single-crystal germanium. Low absorption at the infrared region up to 20μm. With anti-reflective (AR) coating on the both faces, the product delivers superior transmission properties suitable for windows.
Features
- The AR-coated model offers high transmission properties for a wide range
of light (3μm-5μm).
- The product can be used as a window for specimen observation, laser irradiation,
etc.
Brochure 
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Typical Specifications
| Model |
GEWI |
| Wavelength Range |
3-10μm |
5-9μm |
2-13μm |
| AR Coating |
Y |
Y |
N |
Reflectance
(One Side) |
< 4.0% |
< 2.0% |
- |
| Size |
Φ25 x 1tmm, Φ30 x 1tmm |
| Substrate |
Single-crystal germanium |
| Parallelism |
Within 3 minutes |
| Scratch-Dig |
60-40 |
| Effective Diameter |
80% of the actual diameter |
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Wavelength Characteristics of Reflectance(AR-coated_3-10μm)
(Click To Enlarge)
Wavelength Characteristics of Reflectance(AR-coated_5-9μm)
(Click To Enlarge)
Wavelength Characteristics of Reflectance(AR-uncoated)
(Click To Enlarge)
Ordering Instructions
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1) Product: |
IR Window (Germanium) |
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Order format example: |
GEWI-N-A |
(1) AR-coating
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A: 3-5μm B: 5-9μm N: Uncoated |
| (2) External diameter of substrate |
A: Φ30mm C: Φ25mm |
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* External diameter and thickness can be customised.
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Contact
OPTOQUEST Co., Ltd. Headquarters
1335 Haraichi, Ageo-city, Saitama 362-0021
FAX : +81-(0)48-724-1813 [MAP]
OPTOQUEST Co., Ltd. Tokyo sales office
2F Ginsan Bldg. 4-3-10, Nihonbashi-Honcho, Chuo-ku, Tokyo 103-0023
FAX : +81-(0)3-5200-0803 [MAP]
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| Copyright (C) 2005-2015 Optoquest Co., Ltd. All rights reserved. |
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