Dichroism意思
Dichroism is a property of certain materials that causes them to absorb light differently depending on the direction of polarization of the light. This means that when light passes through a dichroic material, it preferentially absorbs light that is polarized in a certain direction, while allowing light that is polarized in a different direction to pass through more easily.
There are several types of dichroism, including:
- Linear dichroism: This refers to the differential absorption of light with different linear polarizations.
- Circular dichroism (CD): This is the difference in absorption of left-handed and right-handed circularly polarized light. It is used to study the optical activity of molecules, especially in biological molecules like proteins and DNA.
- Anisotropic dichroism: This is a more general term that encompasses both linear and circular dichroism, and refers to the property of materials that show different absorption characteristics when light is incident on them in different directions.
Dichroism is important in a variety of scientific fields, including physics, chemistry, and biology, and is used in a variety of applications, such as in the production of optical filters and in the study of the structure and function of biological molecules.