Nanoengineered astronomical optics E. F. Borra, A. M. Ritcey, R. Bergamasco, P. Laird, J. Gingras, M. Dallaire, L. Da Silva and H. Yockell-Lelievre A&A, 419 2 (2004) 777-782 Published online: 03 May 2004 DOI: 10.1051/0004-6361:20034474