A compact half and quarter-wave plate based on bi-layer anisotropic metasurface
Why this work is in the frame
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Bibliographic record
Abstract
Abstract In this letter, an ultrathin bi-layer metasurface, which exhibits half- and quarter-wave plate operation at different resonance frequencies in the microwave regime, is realized and experimentally demonstrated. The proposed metasurface not only transforms linear and circular polarizations to their corresponding cross polarizations but also achieves linear-to-circular and circular-to-linear polarization conversion in different frequency regimes. Moreover, the quarter-wave plate operation of the metasurface is quite robust to the variations in the incidence angle both for transverse-electric and transverse-magnetic polarizations. The physical mechanism behind half- and quarter-wave plate operation is elucidated through surface current distribution. Analytical results for the refractive index further elaborate on the operation of the metasurface.
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 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 it