Multi-order surface lattice resonances and dark mode activation in metallic nanoantenna arrays
Bibliographic record
Abstract
Surface lattice resonances (SLRs) in arrays of metallic nanoantennas are formed via hybridization of their localized surface plasmon resonances with the Rayleigh Anomaly. In this paper, we study the impact of inter-nanoantenna plasmonic coupling on such resonances, demonstrating a significant departure from the cases where the nanoantennas are only coupled to the diffraction modes of the arrays. For this, we study SLRs in a series of metallic nanoantenna arrays wherein their inter-nanoantenna spacings (lattice constants) along their short axes are varied between the limits where transverse modes of the nanoantennas are efficiently coupled to each other to the case where they are well separated. Our results show that for the latter case, when the incident light is polarized along the short axes of the nanoantennas, SLRs are formed via first order parallel coupling. As we reach the limit of inter-nanoantenna plasmonic coupling, however, the nature of SLRs is changed, becoming a second order orthogonal coupling. Our results also show that in the presence of inter-nanoantenna plasmonic coupling, the forbidden quadrupole state of nanoantennas can strongly couple to light, becoming the dominant optical feature of the arrays. For light polarized along the long axes of the nanoantennas, we demonstrate the Rayleigh Anomaly splitting of first order infrared and second order near-infrared SLRs under oblique incident angles. Wavelength multiplex optical filter application of such diffraction orders is discussed.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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".