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Gallium Arsenide
lenses, windows, mirrors, filters and prisms


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Used for lenses and beam splitters and provides an alternative to ZnSe in medium to high power CW CO2 laser systems. Gallium Arsenide is most useful in applications where toughness and durability are important. Its hardness and strength make it a good choice where dust or abrasive particles tend to build up on or bombard the optical surfaces. The material is non-hydroscopic , safe to use in laboratory and field conditions and is chemically stable except when in contact with strong acids.

 Transmission Range  1 - 11.0 µ
 Crystal Structure  -
 Cleavage Plane  None
 Colour  Metalic lustre
 Density  5.32
 Melting Point (°)  1511
 Reflection Loss  45% (12µ) for 2 surfaces
 Solubility index  Insoluble
 Hardness (Knoop)  731kg/mm2
 Thermal  Conductivity  (cal/cm sec°C)  55W (m K) 300K
 Thermal Expansion  coefficient (/°C)  5.7x10-61/K at 300K



Whilst every effort has been made to verify the data provided, no responsibility can be accepted for its accuracy

Global Optics UK Ltd, 30 Brockley Road, Bournemouth, Dorset, UK, BH10 6JN.
Tel: 01202 530609, Fax: 01202 547209
Company Registered in England Registered Office: 30 Brockley Road, Bournemouth BH10 6JN | Company No. 3509979
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