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

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

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.

langueAnglais
Numéro d'article20162334
journalRoyal Society of London. Proceedings B. Biological Sciences
Volume283
Numéro1845
Les DOIs
étatPublié - 28 déc. 2016

Empreinte digitale

fluorescence
Coleoptera
photonics
Optics and Photonics
Beetles
Fluorescence
Photonics
beetle
elytra
Water
Wavelength
wavelengths
water
wavelength
Insect Control
Immersion
Color
Light
Insect control
Fluorophores

mots-clés

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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.",
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    author = "Mouchet, {S\{'e}bastien R.} and Micha\{"e}l Lobet and Branko Kolaric and Kaczmarek, {Anna M.} and {van Deun}, Rik and Peter Vukusic and Olivier Deparis and {Van Hooijdonk}, Eloise",
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    language = "English",
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    Controlled fluorescence in a beetle’s photonic structure and its sensitivity to environmentally induced changes. / Mouchet, Sébastien R.; Lobet, Michaël; Kolaric, Branko; Kaczmarek, Anna M.; van Deun, Rik; Vukusic, Peter; Deparis, Olivier; Van Hooijdonk, Eloise.

    Dans: Royal Society of London. Proceedings B. Biological Sciences, Vol 283, Numéro 1845, 20162334, 28.12.2016.

    Résultats de recherche: Contribution à un journal/une revueArticle

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    AU - Mouchet,Sébastien R.

    AU - Lobet,Michaël

    AU - Kolaric,Branko

    AU - Kaczmarek,Anna M.

    AU - van Deun,Rik

    AU - Vukusic,Peter

    AU - Deparis,Olivier

    AU - Van Hooijdonk,Eloise

    PY - 2016/12/28

    Y1 - 2016/12/28

    N2 - 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.

    AB - 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.

    KW - Beetle scale

    KW - Fluorescence

    KW - Natural photonic crystal

    KW - Photonic bandgap materials

    KW - Structural colour

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