Format

Send to

Choose Destination
ACS Nano. 2013 Feb 26;7(2):1676-81. doi: 10.1021/nn3056687. Epub 2013 Feb 4.

Nano-optomechanical actuator and pull-back instability.

Author information

1
School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798.

Abstract

This paper studies the nonlinear behavior of a nano-optomechanical actuator, consisting of a free-standing arc in a ring resonator that is coupled to a bus waveguide through evanescent waves. The arc deflects when a control light of a fixed wavelength and optical power is pumped into the bus waveguide, while the amount of deflection is monitored by measuring the transmission spectrum of a broadband probe light. This nanoactuator achieves a maximal deflection of 43.1 nm, with a resolution of 0.28 nm. The optical force is a nonlinear function of the deflection of the arc, leading to pull-back instability when the control light is red-tuned. This instability is studied by a combination of experiment and modeling. Potential applications of the nanoactuator include bio-nanomotor, optical switches, and optomechanical memories.

PMID:
23351034
DOI:
10.1021/nn3056687

Supplemental Content

Full text links

Icon for American Chemical Society
Loading ...
Support Center