Magic angle detection of nonlinear Newton-Wigner times at interfaces G. Loas, C. Bonnet, K. Dunseath, D. Chauvat, O. Emile and A. Le Floch EPL, 77 6 (2007) 64003 Published online: 05 March 2007 DOI: 10.1209/0295-5075/77/64003