Light-Field Camera Based on a Hexagonal Array of Nanostructured GRIN Microlenses

Rafal Kasztelanic, Adam Filipkowski, Dariusz Pysz, Andrew John Waddie, Mohammad Reza Taghizadeh, Ryszard Buczynski

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a compact light-field camera built using a flat-surface gradient index (GRIN) microlenses array. First, we report on the design, fabrication and characterization of a hexagonal array of nanostructured GRIN microlenses suitable to build the camera. The concept of a nanostructured GRIN microlens is based on the effective medium theory. The nanostructured GRIN lens is composed of several hundred subwavelength rods made with the use of the stack-and draw technique, which was originally devised for fabrication of photonic crystal fibers [1]. A single GRIN microlens is fabricated from two different glasses, one with low and one with high refractive index value [2]. To develop a hexagonal array of nanostructured GRIN lenses we apply a modified stack-and-draw technique as a second step. The finally-formed element is made of 469 GRIN micro lenses, each 20 μm in the diameter, and is characterized by 100% fill factor. The flat-surface element is easy to integrate with other optical components.
Original languageEnglish
Title of host publicationThe European Conference on Lasers and Electro-Optics 2017
PublisherOptical Society of America
ISBN (Electronic)9781509067367
Publication statusPublished - 25 Jun 2017

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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