Ultrasmall microlens array based on vertically aligned carbon nanofibers

Qing Dai; Ranjith Rajasekharan; Haider Butt; Xiaohui Qiu; Gehan Amaragtunga; Timothy D Wilkinson

doi:10.1002/smll.201200397

Ultrasmall microlens array based on vertically aligned carbon nanofibers

Small. 2012 Aug 20;8(16):2501-4. doi: 10.1002/smll.201200397. Epub 2012 Jun 14.

Authors

Qing Dai¹, Ranjith Rajasekharan, Haider Butt, Xiaohui Qiu, Gehan Amaragtunga, Timothy D Wilkinson

Affiliation

¹ Department of Engineering, University of Cambridge, Cambridge CB3 0FA, UK. qd205@cam.ac.uk

PMID: 22696434
DOI: 10.1002/smll.201200397

Abstract

An ultrasmall tunable microlens with a diameter of 1.5 μm is fabricated using nematic liquid crystals (electrically tunable medium) and vertically aligned carbon nanofibers (CNFs, electrodes). Individual CNFs are grown at the center of circular dielectric regions. This allows the CNFs to produce a more Gaussian electric field profile and hence more uniformity in lens array switching.

Publication types

Research Support, Non-U.S. Gov't