Third-order nonlinear influence on the specular reflectivity of two-dimensional waveguide-based photonic crystals
Bibliographic record
Abstract
Specular reflectivity spectra of plane waves incident upon two-dimensional waveguide-based photonic crystals are rigorously calculated by use of the linear and the third-order nonlinear susceptibilities of the semiconductor core layer. The Fano-like features associated with coupling to leaky photonic eigenstates that are attached to the porous slab are shifted and distorted at high intensities. Although some of this nonlinear behavior is qualitatively similar to that observed in simple Fabry–Perot cavities, there are striking differences. The main difference is that one can engineer the Q values and the in-plane dispersion of the microcavity modes associated with the leaky eigenstates of the photonic crystal over a wide range by varying the properties of the etched texture. Examples are given that demonstrate bistable behavior and intensity-dependent reflectivities that can vary from zero to unity. Both degenerate (single-beam) and nondegenerate (pump- and signal-beam) cases are considered.
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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 | 0.001 |
| 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".