Sub-mm/THz wave generation/amplification using Cerenkov-transition based device
Bibliographic record
Abstract
Due to the rapid growth of the biomedical and the security applications, the interest in the development of compact and flexible sub-mm/THz radiation sources has grown significantly. In this paper we propose a novel source design to address this need. Taking the advantage of the Photonic Crystal (PC) structure, a metallic defected PC, with no axial discontinuities, was designed as a Slow Wave Structure (SWS). This SWS was used in a high power Cerenkov-transition based oscillator/amplifier working in sub-mm/THz frequency regime. The SWS allows electron beams to travel axially in it, facilitating the beam-wave interaction required for the desired signal generation. Two coaxial transitions are used as input and output for the proposed device. The analysis of the proposed device was done using a combined Finite Difference Time Domain (FDTD) / Particle In Cell (PIC) simulation. Using the FDTD thin wire model, coaxial transitions were modeled to feed/extract the input/generated signals. To show the potential of the proposed device, two design examples; one for the amplifier and the other for the oscillator, are presented.
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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".