Self-assembled hollow waveguides with hybrid metal-dielectric Bragg claddings
Bibliographic record
Abstract
We report on the fabrication and characterization of integrated hollow waveguides cladded by gold-terminated, omnidirectional Bragg reflectors. The hollow waveguide channels were realized by the controlled formation of straight-sided delamination buckles within a multilayer thin film stack. An optimized process produced low-defect, straight-sided buckles with base widths from 10 to 80 mum, and corresponding peak core heights from ~0.7 to ~4 mum, on a single sample. The waveguides described have upper and lower cladding mirrors of 4 and 5.5 periods, respectively. Gold termination of the cladding reflectors significantly reduces the propagation loss of air-guided modes. The minimum propagation loss is less than 4 dB/cm in the near infrared, corresponding to upper and lower cladding reflectance of ~ 0.999. The main details of the guiding mechanism are well approximated by a simple ray-optics model.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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".