ArticleScientific reports2025
Terahertz metasensor with pseudo parity time symmetry for oral cancer diagnostics.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Harnessing fano-like line shape resonance in a rectangular waveguide for filtering applications.Scientific reports · 2026Article
- Using Thue Morse structure and magnified defect resonance as cancer sensor.Scientific reports · 2025Article
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3 authors.
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Abstract
This study presents the design and theoretical analysis of a pseudo parity-time symmetric photonic crystal biosensor for early oral cancer detection. Using the transfer matrix method, we numerically investigated the resonant transmission properties of a 1D photonic crystal structure with a central defect layer (D = 50 μm) containing healthy and cancer oral cells. The proposed [Formula: see text] configuration exhibits exceptional sensitivity, quantified by two key metrics: a spectral sensitivity of 118 GHz/RIU and an extraordinary transmittance sensitivity of [Formula: see text] These results demonstrate significant improvements over conventional photonic biosensors, enabled by the PT-symmetric design's ability to operate near an exceptional point. The optimized structure achieves ultra-sharp resonances ([Formula: see text] THz FWHM) with remarkable field enhancement, making it particularly suitable for detecting minute refractive index changes associated with malignant transformations. Our findings establish a foundation for developing high-performance, label-free diagnostic tools for early-stage oral cancer detection.
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