Akademik Veri Yönetim Sistemi
JOURNAL OF OPTICS, cilt.28, sa.5, 2026 (SCI-Expanded, Scopus)
This study investigates the interaction of nonlinear topological Weyl semimetals (WSMs) with electromagnetic waves, aiming to reveal potential applications in laser technologies and to enable the use of the axion term as a tuning parameter, effectively functioning as a topological control parameter. An optically active laser system can be achieved by exploiting spectral singularities in a finite slab geometry. We identify the optimal parameters for a topological laser system, demonstrating that the lasing wavelength exhibits discrete resonance behavior strongly modulated by the system's topological nature. The boundary conditions for nonlinear Maxwell's equations, incorporating topological axion terms, are derived at the interfaces of a trilayer air/WSM/air structure. This analysis reveals that the structure functions as a laser with axion-induced discrete spectra of wavelengths and incident angles. The observations and predictions from this study suggest a concrete method for designing topological WSM lasers and coherent ideal absorbers with tunable spectral properties.