فهرست نشریات علمی دسترسی آزاد ایران

This research presents the comprehensive design and simulation of an intelligent, nanoscale optical platform with dynamic re-programmability, which leverages an innovative integration of hyperbolic metamaterials and germanium-antimony-tellurium (GST) phase-change material. Through systematic optimization and numerical modeling, precise simulations conducted using the finite-element method in COMSOL Multiphysics software demonstrate that the proposed sensor achieves acceptable competitive performance in detecting specific biomarkers at low concentrations, showing particular efficacy in challenging biological environments. In the phase transition to the amorphous state, significantly enhanced quality factors are observed, accompanied by a 46.63 nm redshift in the resonance wavelength. This substantial spectral shift enables dynamic re-programmability of the sensor's functionality and operational characteristics. The intelligent phase-change mechanism, enabled by precisely controlled laser pulse excitation, facilitates reversible switching between two distinct operational states with high reproducibility and minimal degradation over multiple cycles. These unique characteristics position the proposed structure as a versatile and tunable diagnostic platform for real-time monitoring of biomarkers in medical applications, offering promising potential for rapid diagnostics and early disease detection across various clinical settings, while maintaining consistent performance and reliability