The guided transmission of optical waves is central to modern technologies in communication, information processing, and energy systems. Traditionally, light confinement in structures such as optical fibers has relied on total internal reflection. In periodic systems, additional mechanisms—such as photonic bandgaps—can also support guided transport. However, achieving robust light guiding in fully dielectric, transversely non-periodic, and passive media remains a significant challenge when total internal reflection is not applicable.

We present a new approach to optical confinement based on Lagrange points—stable equilibrium positions analogous to those that capture Trojan asteroids in the Sun-Jupiter system. This mechanism exploits optically induced Coriolis forces to create guiding channels even in defocusing or featureless refractive index landscapes. We further explore the extension of this principle to charged particle beams in vacuum, enabling the first waveguide for charged particles that supports ground-state transport. This platform offers new possibilities for applications in particle acceleration, quantum sensing, and quantum information.

The talk will conclude with a brief overview of other ongoing research directions in our group.