High-order mode suppression in a high-Q disk resonator with metal patterning
Bibliographic record
Abstract
High-quality (Q) resonators are essential for efficient light confinement and manipulation in silicon photonics. Conventional microring resonators (MRRs) and microdisk resonators (MDRs) face challenges, such as high losses due to sidewall roughness in MRRs or interference from excessively high-order modes in MDRs. To overcome these challenges, we propose a novel, to the best of our knowledge, MDR design that integrates a patterned nickel (Ni) metal layer on top of a conventional MDR. This metal layer leverages the optical absorption properties of metal to selectively suppress high-order modes, resulting in a microresonator with a high-Q factor comparable to a conventional MDR and simultaneously a clean spectral response similar to that of a conventional MRR. Experimental results show that the patterned MDR with a radius of 20 μm achieves a maximum extinction ratio of 31 dB and a Q factor of 1.5 × 10 5 , which is two orders of magnitude higher than the Q factor of an MRR of identical size fabricated using the same process. This novel MDR design combines a high-Q factor with a clean spectral response, offering significant potential for applications that require high-Q resonators in chip-scale photonic systems.
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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 | 0.000 |
| 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) | 0.000 | 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".