Light is composed of electromagnetic waves of different wavelengths, and its wavelength range constitutes the spectrum, involving the entire electromagnetic band from ultraviolet to infrared, with the visible light part specifically referred to as the “spectrum of light”. The visible spectrum presents a sequential arrangement of different colors from purple (with the shortest wavelength) to red (with the longest wavelength), which reflects the color distribution of the spectrum. The spectrum can be presented as a continuous spectrum with wavelengths varying continuously within a certain range, or as a line spectrum with peaks at specific wavelengths. Spectral analysis has a wide range of applications in the fields of science and technology, such as identifying the composition, structure, and temperature of substances by analyzing their spectral characteristics. At the same time, spectroscopy also plays an indispensable role in designing optical devices such as fiber optic communication systems and LEDs.
Spectrum refers to a way in which light is distributed according to wavelength or frequency, displaying the composition of light. It can include the entire electromagnetic spectrum from ultraviolet to visible light, and then to infrared. In the visible spectrum, light is divided into different colors based on its wavelength, ranging from purple (the shortest wavelength) to red (the longest wavelength). Spectrum is not limited to visible light, it also includes electromagnetic radiation that is invisible to the human eye, such as ultraviolet and infrared radiation. Spectral analysis is an important scientific technique that can be used to identify and study the composition and properties of substances by analyzing the spectral characteristics of the light emitted or absorbed by the substance.
Spectrum is not limited to visible light, it also includes electromagnetic radiation that is invisible to the human eye, such as ultraviolet and infrared radiation. Spectral analysis is an important scientific technique that can be used to identify and study the composition and properties of substances by analyzing the spectral characteristics of the light emitted or absorbed by the substance.