Multilayer mirrored bubbles with spatially-chirped and elastically-tuneable optical bandgaps

Gen Kamita, Mathias Kolle, Fumin Huang, Jeremy J. Baumberg, Ullrich Steiner

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We demonstrate the multifolding Origami manufacture of elastically-deformable Distributed Bragg Reflector (DBR) membranes that reversibly color-tune across the full visible spectrum without compromising their peak reflectance. Multilayer films composed of alternating transparent rubbers are fixed over a 300 mu m wide pinhole and deformed by pressure into a concave shape. Pressure-induced color tuning from the near-IR to the blue arises from both changes in thickness of the constituent layers and from tilting of the curved DBR surfaces. The layer thickness and color distribution upon deformation, the band-gap variation and the repeatability of cyclic color tuning, are mapped through micro-spectroscopy. Such spatially-dependent thinning of the film under elastic deformation produces spatial chirps in the color, and are shown to allow reconstruction of complex 3D strain distributions. (C) 2012 Optical Society of America

Original languageEnglish
Pages (from-to)6421-6428
Number of pages8
JournalOptics Express
Volume20
Issue number6
Publication statusPublished - 12 Mar 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Kamita, G., Kolle, M., Huang, F., Baumberg, J. J., & Steiner, U. (2012). Multilayer mirrored bubbles with spatially-chirped and elastically-tuneable optical bandgaps. Optics Express, 20(6), 6421-6428.