Germanium Glass Window

Germanium has a rugged appearance and is.

Germanium glass window.

Like silicon germanium naturally reacts and forms complexes with oxygen in nature. Thorlabs precision germanium ge windows are offered in ø1 2 and ø1 sizes. Germanium lenses have a high refractive index making it essential to add anti reflection coating to improve its transmission. Germanium also has high opacity across the entire visible spectrum making the windows ideal for applications where transmission of ir wavelengths only is desired.

Download brochure request a quote. As such these germanium windows should be used at temperatures below 100 c. Germanium is a chemical element with the symbol ge and atomic number 32. 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 grown using the czochralski technique by a small number of manufacturers in belgium usa china and russia. Germanium s high density 5 33 g cm 3 should be considered when designing for weight sensitive systems. Rutile tio2 coupling prisms. Germanium ge lenses windows mirrors filters and prisms.

Germanium is subject to thermal runaway meaning that the transmission decreases as temperature increases. 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. 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. 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.

The knoop hardness of germanium 780 is approximately. 27 00 each for quantities of 10 or more please phone to discuss discount. Germanium s high density also makes it heavy something to be considered when designing it into optical systems where weight is a. Germanium windows and lenses are highly sensitive to temperatures above 70 c when it will become opaque.

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 windows opaque in the uv and visible parts of the spectrum have a broad transmission range and are well suited for ir applications. We manufacture and supply axicons made from bk7 glass fused silica and other materials. Germanium is a very hard high density material characteristics that are advantageous where robustness is needed.