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1 August 2011, Volume 1, Issue 4, pp. 525-795
Calculated iso-intensity surfaces of the foci of the femtosecond excitation beam (red) and the continuous-wave depletion beam (green) with an oblique-view electron micrograph of a woodpile photonic crystal with 52 layers and a rod spacing of a = 350 nm made by STED-DLW. For details, see Fischer and Wegener, Opt. Mater. Express 1, 614 (2011). .