Two-slab all-optical spring.
It is demonstrated that a waveguide consisting of two dielectric slabs may become an all-optical spring when guiding a superposition of two transverse evanescent modes. Both slabs are transversally trapped in stable equilibrium due to the optical forces developed. A condition for stable equilibrium on the wavenumbers of the two modes is expressed analytically. The spring constant characterizing the system is shown to have a maximal value as a function of the equilibrium distance between the slabs and their width.
Mizrahi
Amit
A
Department of Electrical Engineering, Technion-IIT, Haifa, Israel. amitmiz@tx.technion.ac.il
Schächter
Levi
L