Fig. 6: Colour mixing.
a Light distribution of a high ρAero-BN sample illuminated in the middle of a translucent glass bulb under different intensities for the each wavelength (450, 520, and 638 nm). White light is produced when all lasers (R + G + B) are at the maximum power (100 mW). b CIE colour map with marked values for the pictures in a. The value obtained for mixing R + G + B is close to the CIE standard white illuminant D6562 (yellow circle). c Photographs of a sample with ρAero-BN ~0.68 mg cm−3 illuminated at 450, 520, and 638 nm (100 mW each, 1 mm spot size), respectively, as well as the resultant white light produced if all lasers are used at once. The arrows mark the direction of the incident laser beam.
