Angle amplification for nanoradian measurements

• DOI: 10.1364/ao.45.001725
• Publication Date: 2006-03-24T18:58:20Z
• Authors: Marco Pisani; Milena Astrua
• Keywords: 0103 physical sciences; 01 natural sciences

A method to amplify the rotation angle of a mirror, based on multiple reflections between two quasi-parallel mirrors, is presented. The method allows rotations of fractions of nanoradians to be measured with a simple setup. The working principle, the experimental setup, and the results are presented.