Open AccessDesign and fabrication of nano-structured gradient index microlenses
Author(s) -
Florian Hudelist,
Ryszard Buczyński,
Andrew J. Waddie,
M. R. Taghizadeh
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.003255
Subject(s) - optics , refractive index , finite difference time domain method , materials science , fabrication , nano , stack (abstract data type) , photonic crystal , total internal reflection , mixing (physics) , microwave , optoelectronics , computer science , physics , medicine , telecommunications , alternative medicine , pathology , quantum mechanics , composite material , programming language
We present a novel fabrication technology for nano-structured graded index micro-optical components, based on the stack-and-draw method used for photonic crystal fibres. These discrete structures can be described with an effective refractive index distribution. Furthermore we present spherical nano-structured microlenses with a flat facet fabricated with this method and designed using an algorithm based on the Maxwell-Garnett mixing formula. Finally we show theoretical verification by using FDTD simulations for a nano-structured lens as well as experimental data obtained in the microwave regime.