Ultrasmall microlens array based on vertically aligned carbon nanofibers.
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.
Department of Engineering, University of Cambridge, Cambridge CB3 0FA, UK. qd205@cam.ac.uk
Qing
Q
Dai
Ranjith
R
Rajasekharan
Haider
H
Butt
Xiaohui
X
Qiu
Gehan
G
Amaragtunga
Timothy D
TD
Wilkinson