Silicon Optomechanical Membrane Waveguides Based on Subwavelength Engineering of Photons and Phonons
Bibliographic record
Abstract
On-chip Brillouin optomechanics has great potential for applications in communications, sensing, and quantum technologies. However, achieving tight confinement of near-infrared photons and gigahertz phonons in integrated waveguides remains a crucial challenge to yield high on-chip Brillouin gain. This challenge is solved in silicon-on-insulator (SOI) waveguides by removing the silica under-cladding. Here we show that subwavelength engineering of the longitudinal and transversal dimensions of Si membranes facilitates independent control of the photonic and phononic modes, allowing for strong Brillouin scattering. Here, we present two strategies to realize suspended silicon waveguides simultaneously confining the optical and mechanical modes in the core, based on subwavelength engineering. These structures provide significant Brillouin gain and allow optomechanical coupling with high-frequency mechanical modes.
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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) | 0.001 | 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 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".