Afterpulse background suppression in time-correlated single photon counting lifetime experiments using optimized gate filter
Bibliographic record
Abstract
Using a monostable multivibrator, the signal-dependent afterpulsing background from a single photon avalanche diode was suppressed. This digital filter gate was characterized and optimized using photoluminescence decay lifetime measurements to show a reduction in systematic error that is 25% of the measured lifetime and ~500X improvement in acquisition time when compared with the time taken to obtain a comparably reliable result by reduction of the repetition rate to suppress afterpulsing. At 10 MHz, there is an increase in the linear dynamic range from ~2τ to ~6τ, where the lifetime, t, was measured to be (5.0±0.1)ns. Lifetime measurements were performed with a pulsed 510 nm diode laser, a 500 nm GaAs layer (sandwiched between InGaP capping layers), a silicon single-photon avalanche photodiode and time-correlated single photon counting electronics.
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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) | 0.001 | 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 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".