Paraxial full-field cloaking

Joseph S. Choi, John C. Howell
2015 Optics Express  
We complete the 'paraxial' (small-angle) ray optics cloaking formalism presented previously [Choi and Howell, Opt. Express 22, 29465 (2014)], by extending it to the full-field of light. Omnidirectionality is then the only relaxed parameter of what may be considered an ideal, broadband, field cloak. We show that an isotropic plate of uniform thickness, with appropriately designed refractive index and dispersion, can match the phase over the whole visible spectrum. Our results support the
more » ... tal limits on cloaking for broadband vs. omnidirectionality, and provide insights into when anisotropy may be required.
doi:10.1364/oe.23.015857 pmid:26193564 fatcat:44m5i3tmszezpmjg3jf4lnylcm