
Sensors, Journal Year: 2025, Volume and Issue: 25(5), P. 1455 - 1455
Published: Feb. 27, 2025
Topological photonic sensors have emerged as a breakthrough in modern optical sensing by integrating topological protection and light confinement mechanisms such states, quasi-bound states the continuum (quasi-BICs), Tamm plasmon polaritons (TPPs). These devices exhibit exceptional sensitivity high-Q resonances, making them ideal for high-precision environmental monitoring, biomedical diagnostics, industrial applications. This review explores foundational physics diverse sensor architectures, from refractive index biosensors to gas thermal sensors, emphasizing their working principles performance metrics. We further examine challenges of achieving ultrahigh-Q operation practical devices, limitations multiparameter sensing, design complexity. propose physics-driven solutions overcome these barriers, Weyl semimetals, graphene-based heterostructures, non-Hermitian systems. comparative study highlights transformative impact ultra-sensitive detection across multiple fields.
Language: Английский