Bragg-induced orbital angular-momentum mixing in paraxial high-finesse cavities
David H. Foster, Jens U. Noeckel
Abstract
Numerical calculation of vector electromagnetic modes of plano-concave microcavities reveals that the polarization-dependent reflectivity of a flat Bragg mirror can lead to unexpected cavity field distributions for nominally paraxial modes. Even in a rotationally symmetric resonator, certain pairs of orbital angular momenta are necessarily mixed in an excitation-independent way to form doublets. A characteristic mixing angle is identified, which even in the paraxial limit can be designed to have large values. This correction to Gaussian theory is zeroth-order in deviations from paraxiality. We discuss the resulting nonuniform polarization fields. Observation will require small cavities with sufficiently high Q. Possible applications are proposed.
Create a lesson
Related papers
Volumetric Evanescent Edge Coupling for Fiber-to-Chip Optical I/O
Hamdy Elshehaby, Omar Bakheet, Mohamed A. Swillam et al.
A Simplified Model for Linear Mode Coupling in Multimode Fibers with Experimental Assessment
Paolo Carniello, Filipe M. Ferreira, Fabio A. Barbosa et al.
Quantum Battery Enhancement via Degenerate Optical Parametric Amplifier and Common Reservoirs
Y. Y. Yang, H. N. Liu, Gangcheng Wang et al.
High-order correlations and ultrafast Wigner negativities in bright-squeezed-vacuum-driven high-harmonic generation
Sebastián de-la-Peña, Heiko Appel, Marcelo F. Ciappina et al.
Path-Integrated Polarization Rotation Signatures in Subsea Networks: Cable Geometry Effects in 2023 Turkey Earthquakes
Mohammad M. Hosseini, Miquel Masanas, Giuseppe Parisi et al.
Characterization of spatially inhomogeneous chirp in ultrashort multielectron beams via femtosecond hole burning
Yuichi Tachibana, Yuya Morimoto