Second harmonic generation in planar photonic crystal waveguides
Bibliographic record
Abstract
Summary form only given. It is now well-established that semiconductor-based slab waveguides textured with a deep, 2-dimensional (2D) periodic pattern of holes exhibit a rich photonic bandstructure. In particular, we have recently reported the dispersion, polarization and lifetimes of resonant or "leaky" photonic eigenstates that can be excited directly from the vacuum half-space above the waveguide. These eigenstates are principally composed of superpositions of TE and TM slab-like modes with wavevectors on the order of the reciprocal space vectors that define the dielectric lattice. The finite lifetimes are associated with a relatively small component of their Bloch states that is phase matched to radiate into the vacuum above, and into the substrate below. In the present work we explore how these resonant photonic eigenstates might be used to tailor a nonlinear optical conversion process, second harmonic generation.
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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 | 0.000 |
| 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) | 0.004 | 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 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".