Figure 4

image

Download original image

Multipole decomposition, second harmonic far-field distribution and nonlinear dissymmetry factor as a function of number of turns of a nanohelix. The inset shows the helix geometry, with linear and nonlinear results for (a) N = 0.5, (b) N = 1, and (c) N = 1.5. Geometric parameters of each helix are p = 200 nm, d = 100 nm, and r = 50 nm. All polar plots are normalized to the maximum forward scattering for RCP excitation.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.