Sapphire optical crystal is an excellent material used in applications requiring wide spectral ranges and high durability. Sapphire transmits light over a wide wavelength range from 0.15um to 5um, also has high heat resistance up to 2000,, good thermal conductivity, high hardness (Morse 9) and good chemical stability. Sapphire crystal generally used in FTIR spectroscopy, FLIR imaging, and crystal substrate. especially blue, purple, white light emitting diodes (LED) and blue light laser (LD)
1. Extreme surface hardness
2. High melting points
3. Good thermal conductivity
4. Wide transmitter wavelength