Exceptional Absorption in a Deep‐Subwavelength Plasmonic Film
Bibliographic record
Abstract
Abstract In the realm of photonic integrated circuit design, on‐chip absorbers are imperative for preventing signal degradation caused by unintended stray photons, which induce signal crosstalk and operational errors. An ideal on‐chip optical absorber is expected to have a superior absorption capability across a wide range of frequencies while maintaining a minimal footprint. However, widely employed optical thin‐film absorbers suffer from limited absorption due to inherent refractive index mismatches and short light‐matter interaction lengths. Here a ≈45‐nm thin metalayer is demonstrated that exhibits uniformly high absorption over a broad wavelength range from 350 nm to 4.5 µm in a wide range of incident angles up to over 60 degrees. The metalayer's performance notably exceeds the absorption predicted by standard plane‐wave optics theories, potentially attributing to the Anderson localization effect. Integration of such a deep‐subwavelength metalayer absorber into photonic circuits will facilitate the creation of highly efficient photonic chips, propelling the advancement of optical communication and computing.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".