41. This allows for the formation of a wide bandgap conductor which is transparent to the visible spectrum . 42. For example, noble metals such as gold or silver are ENG in the infrared and visible spectrums . 43. Lasers can be designed to operate within specific wavelengths of light, within the visible spectrums and beyond. 44. The middle of the visible spectrum has a wavelength of approximately 560 nm ( for sunlight ). 45. The doped polymer has low absorption of the visible spectrum with an absorption band centered around 1050 nm. 46. Infrared radiation can pass more freely through regions of cosmic dust that scatter radiation in the visible spectrum . 47. See : visible spectrum , optical window. 48. In doing so, he drew inspiration from a number of sources describing colors outside of the visible spectrum . 49. Violet is the color at the end of the visible spectrum of light between blue and the invisible ultraviolet. 50. The likelihood is that it will be a dull brick red at the extreme edge of the visible spectrum .
