Two-slab all-optical spring
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Updated: Jul 16, 2026

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
1Department of Electrical Engineering, Technion-IIT, Haifa, Israel. amitmiz@tx.technion.ac.il
Abstract:
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.
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