Germanium Glass Window

Germanium optical windows have good transmittance from 2 to 16 µm uncoated and very low peak absorption making the material an excellent candidate for use in c02 laser cavities.

Germanium glass window.

Germanium has a rugged appearance and is. Like silicon germanium naturally reacts and forms complexes with oxygen in nature. Germanium s high density 5 33 g cm 3 should be considered when designing for weight sensitive systems. Ir polished germanium ge optical window 25 4mm ø x 1mm 1 inch ø x 1mm 44 0 1202 307650 or email protected 0 in stock.

Germanium is grown using the czochralski technique by a small number of manufacturers in belgium usa china and russia. Germanium also has high opacity across the entire visible spectrum making the windows ideal for applications where transmission of ir wavelengths only is desired. Germanium s high density also makes it heavy something to be considered when designing it into optical systems where weight is a. Germanium lenses have a high refractive index making it essential to add anti reflection coating to improve its transmission.

Germanium is subject to thermal runaway meaning that the transmission decreases as temperature increases. Knight optical stock a range of germanium windows dlc ar coated for 7 12 µm we can also offer custom germanium windows to your specific requirement. They are available uncoated or with an ar coating on both sides that provides 2 average reflectance from 1 9 to 6 µm offered in ø1 size only or 1 average reflectance from 7 to. Germanium ge lenses windows mirrors filters and prisms.

We manufacture and supply axicons made from bk7 glass fused silica and other materials. Thorlabs precision germanium ge windows are offered in ø1 2 and ø1 sizes. Germanium windows and lenses are highly sensitive to temperatures above 70 c when it will become opaque. Rutile tio2 coupling prisms.

27 00 each for quantities of 10 or more please phone to discuss discount. The knoop hardness of germanium 780 is approximately. As such these germanium windows should be used at temperatures below 100 c. It is a lustrous hard brittle grayish white metalloid in the carbon group chemically similar to its group neighbours silicon and tin pure germanium is a semiconductor with an appearance similar to elemental silicon.

Germanium is a chemical element with the symbol ge and atomic number 32. Germanium windows opaque in the uv and visible parts of the spectrum have a broad transmission range and are well suited for ir applications. Download brochure request a quote. Germanium window ge window widely used in ir sensors thermal image medical and other applications.