Gallium Arsenide
Optical Material Information*
| Chemical Formula | GaAs |
| Refractive Index (at 10.0 microns) | 3.14 |
| Knoop Hardness (psi) | 750 |
| Modulus of Rupture (psi) | 11,000 |
| Useful Wavelength Range, Transmission (microns) | 1-17 |
| Useful Wavelength Range, ATR (microns) | 1-14 |
| Maximum Useful Temperature (ºC) | 400 |
| Melting Point (ºC) | 1238 |
| General Properties | Tough; durable; strong; hard; an irreversible change in transmission occurs on heating to 500ºC; dark gray. |
| Chemical Properties | Insoluble in water; slightly soluble in acids and bases; non-hygroscopic; unstable with strong acids. |
| Clean with… | Water. |
*This was compiled from various sources. For more details, consult the Chemical Abstracts Service at www.cas.org.
Transmission Spectrum (0.81 mm thickness)
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| Phone: 914-747-7202 Fax: 914-747-7209 |
| E-mail: info@harricksci.com |