ArticleAdvanced materials technologies2025
Photonic Crystal Enhanced Microscopy on a 2D Photonic Crystal Surface.
Article in Advanced materials technologies, 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Deep-ultraviolet plasmon resonances on hybrid Si nanostructures for photoluminescence enhancement.Discover nano · 2025Article
- Digital Immunoassay for Rapid Detection of SARS-CoV-2 exposure in a Broad Spectrum of Animals.IEEE sensors journal · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
Digital-resolution biosensing based on resonant reflection from photonic crystals (PC) has demonstrated significant potential for detection of proteomic and genomic biomarkers in serology, infectious disease diagnostics, and cancer diagnostics. An important intrinsic characteristic of resonant metamaterial surfaces is that enhanced electromagnetic fields are not uniformly distributed, resulting in spatially variable light-matter interactions with nanoparticle tags that signal the presence of biomarker molecules. In this work, we compare the spatial uniformity of resonantly enhanced, surface-confined electromagnetic fields of a one-dimensional (1D) PC with a two-dimensional (2D) PC with fourfold symmetry. When illuminated with unpolarized light, the simultaneously excited electromagnetic fields of transverse electric and transverse magnetic modes of the 2D PC present equally strong but complementary spatial distribution, leading to a > 100% increased average near-field intensity accompanied with a > 50% compressed standard deviation compared to the 1D PC. Utilizing Photonic Resonator Absorption Microscopy (PRAM) to experimentally measure the absorption uniformity of ~80 nm gold nanoparticles distributed upon the PC surface, we observe a > 100% improvement of the signal uniformity when using the 2D PC. Overall, we demonstrate improvement in AuNP detection contrast, uniformity, and point spread function by PRAM performed upon a 2D PC surface.
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Registered trials
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