Optical functionality of natural photonic structures on the transparent insect wings for bio-mimetic applications

Pramod Kumar, Danish Shamoon, Kamal P. Singh

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We experimentally and numerically probe the natural quasi-ordered complex structures in the transparent insect wings by a simple, non-invasive, real time optical diffraction technique using monochromatic cw lasers and broadband femtosecond laser pulses. A complex diffraction pattern in transmission unveils the signature of long range spatial correlation in structural arrangement (symmetry) at various length scales on the whole wing surface for a variety of insect wings. A quantitative analysis analysis of the Fast Fourier transform (FFT) angular spectrum reveals a direct link between the structural organization and optical transmitted diffraction patterns. Our findings directly demonstrate how the diffraction pattern through the transparent insect wings is spatially and functionally correlated with its structural origination at various length scales. The methodology of the studies developed in this paper is applicable to a wide class of disordered photonic structures.

Original languageEnglish
Title of host publicationElectroactive Polymer Actuators and Devices, EAPAD 2014
PublisherSPIE
ISBN (Print)9780819499820
DOIs
StatePublished - 2014
Externally publishedYes
EventElectroactive Polymer Actuators and Devices, EAPAD 2014 - San Diego, CA, United States
Duration: 10 Mar 201413 Mar 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9056
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceElectroactive Polymer Actuators and Devices, EAPAD 2014
Country/TerritoryUnited States
CitySan Diego, CA
Period10/03/1413/03/14

Keywords

  • Fourior optics
  • Nanophtonics and photonics crystal
  • Natural Photonic structures
  • Optical Diffraction

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