Germanium Glass Window

Germanium s high density also makes it heavy something to be considered when designing it into optical systems where weight is a.

Germanium glass window.

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 s high density 5 33 g cm 3 should be considered when designing for weight sensitive systems. Germanium window ge window widely used in ir sensors thermal image medical and other applications. Germanium has a rugged appearance and is.

As such these germanium windows should be used at temperatures below 100 c. 27 00 each for quantities of 10 or more please phone to discuss discount. Download brochure request a quote. 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.

Other germanium components we can also offer are germanium lenses germanium prisms and germanium blanks to your specification for a range of applications. Germanium is a very hard high density material characteristics that are advantageous where robustness is needed. 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 lenses have a high refractive index making it essential to add anti reflection coating to improve its transmission.

Germanium is a chemical element with the symbol ge and atomic number 32. 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. Rutile tio2 coupling prisms. The refractive index of germanium changes rapidly with temperature and the material becomes opaque at all wavelengths a little above 350k as the band gap floods with thermal electrons.

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. The knoop hardness of germanium 780 is approximately. Like silicon germanium naturally reacts and forms complexes with oxygen in nature. Germanium windows and lenses are highly sensitive to temperatures above 70 c when it will become opaque.

Germanium is subject to thermal runaway meaning that the transmission decreases as temperature increases. Germanium windows opaque in the uv and visible parts of the spectrum have a broad transmission range and are well suited for ir applications. Germanium ge lenses windows mirrors filters and prisms. Thorlabs precision germanium ge windows are offered in ø1 2 and ø1 sizes.