Enhanced directive terahertz radiation emission from a horn antenna-coupled W/Fe/Pt spintronic film stack
Bibliographic record
Abstract
We demonstrate enhanced directive terahertz (THz) radiation emission from a horn-antenna coupled spintronic THz radiation emitter without the use of additional lenses. The waveguide-fed horn antenna is fabricated using 3D lithography and is coupled directly to the THz-emitting film serving to direct the highly divergent THz radiation emitted by the spintronic THz radiation emitter. The antenna-coupled emitter provides a 19.6 dB increase in the measured signal power at 1.5 THz compared to a bare emitter. Finite-difference time-domain simulations are conducted to gain insight into the behavior of the antenna at different frequencies, providing results that match those observed experimentally. Our device is well suited for platforms where footprint size is a constraint and can be modified to act as a directive bandpass filter.
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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".