All-polymer photonic bandgap Bragg fibers for bio-chemical sensors and spectrometers
Bibliographic record
Abstract
In this talk, we demonstrate bio-chemical fiber-optic sensors and fiber bundle spectrometers based on the hollow- and solid- core all-polymer Bragg fibers fabricated in our group. The hollow-core Bragg fiber sensor operates on a resonant sensing mechanism in which variations in refractive indices of liquid analytes filling the fiber core can be detected by interrogating the resonant wavelength shift in fiber transmission. Experimental sensitivity of the sensor is found to be ∼1400nm/RIU which is comparable to that of a SPR sensor. The Bragg fiber bundle spectrometer fabricated with solid-core Bragg fibers can be used to replace traditional spectrometers based on movable gratings, leading to significant cost-saving and increased acquisition speed. As an example of the application of the Bragg fiber bundle spectrometer, we integrate it into the hollow-core Bragg fiber sensing system for spectral acquisition.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".