Intensitätstransmissionskoeffizienten

Intensitätstransmissionskoeffizienten, often abbreviated as T, describe the fraction of incident light intensity that is transmitted through a material or at an interface. This value is dimensionless and ranges from 0 to 1, where 0 means no light is transmitted and 1 means all incident light is transmitted. The transmission coefficient depends on various factors, including the material's optical properties such as its refractive index and absorption coefficient, as well as the wavelength of the incident light. For interfaces between different media, the transmission coefficient is related to the reflection coefficient (R) by the law of conservation of energy, which states that the sum of transmitted and reflected intensity is equal to the incident intensity, assuming no absorption within the interface itself. Therefore, T + R = 1 in such cases. In more complex scenarios involving absorption within the transmitting medium, the intensity transmitted will be less than the product of the incident intensity and the interface transmission coefficient. These coefficients are crucial in fields like optics, photonics, and material science for understanding and predicting light propagation and interaction with matter.