Generation of interferences with a Fresnel biprism

Principle

With the help of a prism with a very large apex angle (Fresnel biprism), an incident light beam can be split into two equal coherent partial beams, which interfere with each other in their overlapping area

Benefits

• Curriculum-relevant DEMO Experiment in optics
• Equivalence to the corresponding student experiment
• Stable optical bench
• Compact, simple construction

Tasks

• Generation of interference with the aid of a Fresnel biprism