High Sensitivity Evanescent Field-Based Micro-Resonator Using Porous Cladding for Sensing Applications in the Visible Range
Bibliographic record
Abstract
In this work, we fabricate and study a sensitive polymer-based optical sensor for visible range detection in water environment. The studied transducer is a micro-resonator relying on the interaction between the evanescent wave and the aqueous medium to measure the medium refractive index change. The micro-resonator consists of a waveguide with PMMA polymer as the core layer and porous silica as the lower cladding layer to significantly enhance the evanescent field ratio and sensitivity. The first results show a very good resonator quality factor of around 2.10<inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$^{4}$</tex-math></inline-formula> and a sensitivity of 255nm/RIU at 760nm for aqueous solutions with glucose at different concentrations. These state-of-the-art results obtained in the visible range demonstrate that a polymer-based sensor with a porous cladding appears as a promising platform for evanescent field-based sensing in the visible range without any surface chemical functionalization in an aqueous medium.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".