Sub-diffractive light confinement: A biological-based approach

Author

Lavanga, Luigi ; Dardano, P. ; De Stefano, L. ; Rendina, I. ; De Tommasi, E. ; De Stefano, Mario ; Langella, Carla ; De Luca, A.C. ; Dholakia, Kishan ; Mazilu, Michael

Author_Institution

Dept. of Naples, Inst. for Microelectron. & Microsyst., Naples, Italy

fYear

2014

fDate

12-14 May 2014

Firstpage

1

Lastpage

3

Abstract

We report the generation of subdiffractive laser light focal spots in far-field regime, by means of the so-called Optical Eigenmodes (OEi) technique applied to the focusing properties of a single valve of Arachnoidiscus genus diatom. Diatoms are ubiquitous microalgae whose external walls are able to confine light in several hot-spots. We demonstrated that the presence of the valve brings a significant contribution to the OEi-induced light squeezing, improving its performance.

Keywords

biological techniques; eigenvalues and eigenfunctions; light diffraction; microorganisms; optical focusing; radiation pressure; Arachnoidiscus genus diatom; biological-based approach; optical eigenmode-induced light squeezing; optical focusing; subdiffractive laser light focal spot generation; subdiffractive light confinement; ubiquitous microalgae; Biomedical optical imaging; Probes; biomimicry; biophotonics; diatoms; optical eigenmodes; sub-diffraction techniques; sub-wavelength techniques;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics Technologies, 2014 Fotonica AEIT Italian Conference on

Conference_Location

Naples

Print_ISBN

978-8-8872-3718-4

Type

conf

DOI

10.1109/Fotonica.2014.6843934

Filename

6843934