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. 2013 Dec 12;26(4):532–569. doi: 10.1002/adma.201303456

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© 2013 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Tunable PnCs with polymer-based systems. (a) SEM images show the instability induced pattern transformation in hexagonal SU8 based photo-patterned polymer with displacement fields for the modes near the tunable PnBG. Reproduced with permission.³⁵ Copyright 2009, American Chemical Society. (b) BLS spectra of PDMS microframe undergoing large strains (30%) along the direction, showing clear shifts in the peaks of modes 1 and 3, indicating a change in the propagation modes. The corresponding AFM images and Fourier transformed images (insets) indicate the breaking of the hexagonal symmetry due to the stretching. Reproduced with permission.³⁴ Copyright 2006, American Chemical Society. (c) Tilted SEM image of AAO template without polymers (inset: top view). Experimental in-plane phononic dispersion relations of polyethylene glycol (PEG)- filled AAO (black symbols) and PDMS-filled AAO (red symbols) for the longitudinal acoustic branch 1 (open circles) and the weak flat branch 2 (open triangles). Reproduced with permission.³⁸⁵ Copyright 2010, American Chemical Society.

Inline graphic — Tunable PnCs with polymer-based systems. (a) SEM images show the instability induced pattern transformation in hexagonal SU8 based photo-patterned polymer with displacement fields for the modes near the tunable PnBG. Reproduced with permission.³⁵ Copyright 2009, American Chemical Society. (b) BLS spectra of PDMS microframe undergoing large strains (30%) along the direction, showing clear shifts in the peaks of modes 1 and 3, indicating a change in the propagation modes. The corresponding AFM images and Fourier transformed images (insets) indicate the breaking of the hexagonal symmetry due to the stretching. Reproduced with permission.³⁴ Copyright 2006, American Chemical Society. (c) Tilted SEM image of AAO template without polymers (inset: top view). Experimental in-plane phononic dispersion relations of polyethylene glycol (PEG)- filled AAO (black symbols) and PDMS-filled AAO (red symbols) for the longitudinal acoustic branch 1 (open circles) and the weak flat branch 2 (open triangles). Reproduced with permission.³⁸⁵ Copyright 2010, American Chemical Society.