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Optics with diatoms: towards efficient, bioinspired photonic devices at the micro-scale

  • E. De Tommasi
  • , I. Rea
  • , L. De Stefano
  • , P. Dardano
  • , G. Di Caprio
  • , M. A. Ferrara
  • , G. Coppola

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

Abstract

Diatoms are monocellular algae responsible of 20-25% of the global oxygen produced by photosynthetic processes. The protoplasm of every single cell is enclosed in an external wall made of porous hydrogenated silica, the frustule. In recent times, many effects related to photonic properties of diatom frustules have been discovered and exploited in applications: light confinement induced by multiple diffraction, frustule photoluminescence applied to chemical and biochemical sensing, photonic-crystal-like behavior of valves and girdles. In present work we show how several techniques (e.g. digital holography) allowed us to retrieve information on light manipulation by diatom single valves in terms of amplitude, phase and polarization, both in air and in a cytoplasmatic environment. Possible applications in optical microsystems of diatom frustules and frustule-inspired devices as active photonic elements are finally envisaged.

Original languageEnglish
Title of host publicationOptical Methods for Inspection, Characterization, and Imaging of Biomaterials
Place of PublicationBellingham, Washington
PublisherSPIE
ISBN (Print)9780819496089
DOIs
Publication statusPublished - 23 May 2013
EventOptical Methods for Inspection, Characterization, and Imaging of Biomaterials - Munich, Germany
Duration: 15 May 2013 → 16 May 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8792
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Methods for Inspection, Characterization, and Imaging of Biomaterials
Country/TerritoryGermany
CityMunich
Period15/05/13 → 16/05/13

Keywords

  • bio-inspired microsystems
  • biophotonics
  • diatoms
  • digital holography
  • micro-optics

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