Mechano-optical wavelength tuning in a photonic crystal microcavity with sub-1 V drive voltage.
A micro-bimorph cantilever with self-aligned nanotips is monolithically integrated with a photonic crystal based device using optical and deep UV lithography techniques. Upon electrostatic actuation, the dielectric nanotips perturb the optical field, providing electromechano-optical modulation of light. Static tuning of the optical transmission spectra by more than 600 pm is measured with a sub-1 V drive voltage, resulting in a modulation as high as 21 dB. The observed strong electromechano-optical effect may find application in power efficient devices for optical communication networks, such as wavelength routing elements.
Transducers Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands. shahinamumthaz@gmail.com
Shahina M C
SM
Abdulla
Lasse J
LJ
Kauppinen
Gijs J M
GJ
Krijnen
René M
RM
de Ridder