Controlled fluorescence in a beetle’s photonic structure and its sensitivity to environmentally induced changes

Sébastien R. Mouchet, Michaël Lobet, Branko Kolaric, Anna M. Kaczmarek, Rik van Deun, Peter Vukusic, Olivier Deparis, Eloise Van Hooijdonk

    Research output: Contribution to journalArticle

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    Abstract

    The scales covering the elytra of the male Hoplia coerulea beetle contain fluorophores embedded within a porous photonic structure. The photonic structure controls both insect colour (reflected light) and fluorescence emission. Herein, the effects of water-induced changes on the fluorescence emission from the beetle were investigated. The fluorescence emission peak wavelength was observed to blue-shift on water immersion of the elytra whereas its reflectance peak wavelength was observed to red-shift. Time-resolved fluorescence measurements, together with optical simulations, confirmed that the radiative emission is controlled by a naturally engineered photonic bandgap while the elytra are in the dry state, whereas non-radiative relaxation pathways dominate the emission response of wet elytra.

    Original languageEnglish
    Article number20162334
    JournalRoyal Society of London. Proceedings B. Biological Sciences
    Volume283
    Issue number1845
    DOIs
    Publication statusPublished - 28 Dec 2016

    Keywords

    • Beetle scale
    • Fluorescence
    • Natural photonic crystal
    • Photonic bandgap materials
    • Structural colour

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  • Projects

    Equipment

  • Activities

    • 4 Oral presentation
    • 3 Invited talk

    Fluorescence emission from beetle wings

    Sébastien Mouchet (Speaker)

    17 Jan 2018

    Activity: Talk or presentation typesInvited talk

    Linear and Non-Linear Fluorescence Investigation of a Beetle’s Photonic Structure

    Sébastien Mouchet (Speaker)

    17 May 2017

    Activity: Talk or presentation typesOral presentation

    Colouration and Fluorescence Emission in Natural Photonic Structures

    Sébastien Mouchet (Speaker)

    24 Apr 2017

    Activity: Talk or presentation typesOral presentation

    Press / Media

    Datasets

    Data from: Controlled fluorescence in a beetle's photonic structure and its sensitivity to environmentally induced changes

    DEPARIS, O. (Contributor), Kaczmarek, A. M. (Contributor), Kolaric, B. (Contributor), Lobet, M. (Contributor), MOUCHET, S. (Contributor), Van Deun, R. (Contributor), Van Hooijdonk, E. (Contributor) & Vukusic, P. (Contributor), Dryad Digital Repository, 18 Nov 2016

    Dataset

    Student Theses

    Mécanismes fondamentaux de la coloration structurale : addiction et induction de couleurs

    Author: Mouchet, S., 29 Sep 2015

    Supervisor: Deparis, O. (Supervisor), Su, B. L. (Jury), Lepere, M. (President), Vukusic, P. (External person) (Jury), Berthier, S. (External person) (Jury) & Voué, M. (External person) (Jury)

    Student thesis: Doc typesDoctor of Sciences

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