Naturally sourced photonic and plasmonic crystals derived from diatom frustules

William P. Wardley; Johannes W. Goessling; Martin Lopez Garcia

doi:10.1117/12.2594516

1 August 2021 Naturally sourced photonic and plasmonic crystals derived from diatom frustules

William P. Wardley, Johannes W. Goessling, Martin Lopez Garcia

Proceedings Volume 11797, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIX; 1179715 (2021) https://doi.org/10.1117/12.2594516
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Diatoms are an abundant group of algae, sharing a unique feature; they produce silica exoskeletons featuring intricate nanostructures, known as a frustule. In certain species this includes a porous network with high precision lattices, strongly resembling photonic crystals produced using modern technological processes. Here we show two means for using these frustules as an optical material. Firstly, the unprocessed frustule can be used as a conventional photonic crystal. Secondly, a metal deposition processing step can yield plasmonic crystals. Both show high quality optical properties, analogous to lab-manufactured structures, and are produced over much larger areas at a much lower cost and without specialist equipment. Optical spectra (angularly resolved dispersions) are presented, along with simulation results to corroborate experimental findings and to allow optical mode characterisation and analysis.

Conference Presentation

Citation Download Citation

William P. Wardley, Johannes W. Goessling, and Martin Lopez Garcia "Naturally sourced photonic and plasmonic crystals derived from diatom frustules", Proc. SPIE 11797, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIX, 1179715 (1 August 2021); https://doi.org/10.1117/12.2594516

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available