Numerical investigation of plasmonic properties of gold nanoshells
Bibliographic record
Abstract
We numerically investigated plasmonic properties of gold coated 300 nm core shell particles (CS). It is known that the surface plasmon decays into the medium that encompasses the metal nanoparticle. This decay converts changes in the local refractive index into a frequency shift of the SPR. In this work, the core material was polystyrene and the shell was a thin gold layer. We showed that this CS exhibits two plasmonic modes in the visible-near infrared regime. The blue end plasmonic mode was confined at the core-metal dielectric interface and the red end plasmonic mode was attributed to a surface mode that depends on dielectric properties of the surrounding medium. The application of the red end plasmonic mode as a surface plasmon resonance (SPR) sensor revealed that it exhibits wavelength shift of 764±13 nm per refractive index unit change of the surrounding medium (nm/RIU). Potential biomedical applications of these sensors are discussed.
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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 | 0.000 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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 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".