TY - JOUR AU - Sébastien Guenneau AU - S. Anantha Ramakrishna TI - Negative refractive index, perfect lenses and checkerboards: Trapping and imaging effects in folded optical spaces JO - Comptes Rendus. Physique PY - 2009 SP - 352 EP - 378 VL - 10 IS - 5 PB - Elsevier DO - 10.1016/j.crhy.2009.04.002 LA - en ID - CRPHYS_2009__10_5_352_0 ER -