Optical phase-space reconstruction of mirror motion at the attometer level T. Briant, P. F. Cohadon, M. Pinard and A. Heidmann Eur. Phys. J. D, 22 1 (2003) 131-140 Published online: 29 October 2002 DOI: 10.1140/epjd/e2002-00217-9