Masked by rotational anisotropies, xthe nonlinear chiroptical response of a metamaterial is initially completely inaccessible. Upon rotating the sample the chiral information emerges. These results highlight the need for a general method to extract the true chiral contributions to the nonlinear optical signal, which would be hugely valuable in the present context of increasingly complex chiral meta/nanomaterials.
Keywords: chiral media; metamaterials; nanomaterials; nonlinear optics.
© 2017 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.