Why this question matters now We open with the modern reality: most “high-performance” SPR sensors are no longer just prism/metal/analyte. Once you add oxides, high-index films, and 2D overlayers, sensitivity can improve dramatically—but so can linewidth, drift, and fabrication sensitivity. This section frames the goal of the article: to explain what actually controls sensitivity in […]
Photonic Crystal Fiber (PCF) sensors represent a class of advanced optical fiber technologies that are revolutionizing the landscape of precision sensing. Unlike conventional step-index optical fibers, PCFs incorporate a microstructured arrangement of air holes along their length, giving them unique light-guiding properties. These periodic structures allow PCFs to confine and guide light either through modified […]
