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Study of Apatite by Linear dichroism (LD) (CAT#: STEM-ST-0120-WXH)

Introduction

Apatites are phosphate minerals, and it is the association of the calcium ions that is responsible for the characteristic hexagonal crystal structure and morphology.




Principle

Linear dichroism (LD) or diattenuation is the difference between absorption of light polarized parallel and polarized perpendicular to an orientation axis. It is the property of a material whose transmittance depends on the orientation of linearly polarized light incident upon it. LD measurements are based on the interaction between matter and light and thus are a form of electromagnetic spectroscopy.

Applications

Study the functionality and structure of molecules.

Materials

• Polarizer
• Absorbance spectrometer