OPTICAL MEMBER FORMED FROM SILICON MATERIAL AND OPTICAL DEVICE COMPRISING SAME

摘要

The objective of the present invention is to provide: an optical member which is formed from a silicon material having high infrared transmittance and high hardness; and an optical device which comprises such an optical member. The present invention provides: an optical member for transmitting infrared light, which is formed from a silicon material that has an oxygen concentration of 1.0 × 1017 atom/cm3 or less, while containing carbon at a concentration of from 1.0 × 1016 atom/cm3 to 8.0 × 1018 atom/cm3 (inclusive); and an optical device which comprises this optical member arranged in the optical path of infrared light.