High responsivity, dual-band response and intraband avalanche multiplication in InGaAs/InP quantum well photodetectors
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Bibliographic record
Abstract
We report on experimental results on dual-band high responsivity InGaAs/InP quantum well photodetectors covering both near and mid-infrared spectral regions. The mid-infrared detection relies on intersubband transitions. With changing well width both bound-to-bound and bound-to-continuum photodetectors have been demonstrated, thus determining the optimal design parameters for this materials system. The near infrared detection is via the usual interband absorption. The observed high responsivity values at high applied voltages are due to the combined effects of low excited-electron capture probability (related to the high mobility in these structures in contrast to the standard GaAs/AlGaAs ones) and of intraband impact ionization leading to an avalanche multiplication gain. To separate the two effects and unambiguously identify the latter, we performed noise measurements and carried out analyses using a newly developed theory.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| 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 it