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Record W2047799360 · doi:10.1117/12.2054010

Ultrafast bandgap technique: light-induced semiconductor augmentation

2014· article· en· W2047799360 on OpenAlexaff
I. K. Zakharova, Michael K. Rafailov

Bibliographic record

VenueProceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2014
Typearticle
Languageen
FieldPhysics and Astronomy
TopicLaser-Matter Interactions and Applications
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsSemiconductorOptoelectronicsLaserUltrashort pulseMaterials scienceSemiconductor laser theoryElectronSemiconductor optical gainIntrinsic semiconductorSemiconductor devicePulse (music)OpticsDetectorPhysicsNanotechnology

Abstract

fetched live from OpenAlex

Bleaching by ultra-short pulses is discussed as an opportunity for semiconductor optical augmentation. The ability of ultra-short laser pulse to excite and remove electrons in-bulk from valence band may be used to prevent generation of thermal electrons for extended period of time. That time is correlated with recombination time. Diminishing the number of electrons that are available for thermal excitation leads to thermal noise reduction in the same way as semiconductor cooling. Technology based on the effect may be used as effective alternative to thermal cooling, and may allow some semiconductors effectively be exploited at ambient temperatures. Specifically, high sensitive and fast detectors as well as semiconductor lasers covering long and very long-wavelengths may actually work without extra cooling., needed to reduce thermal noise. In this paper, we will consider the effects caused by relatively low pulse energy ultra-short pulse lasers.

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 machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.002
Threshold uncertainty score0.006

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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.

Opus teacher head0.010
GPT teacher head0.241
Teacher spread0.231 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations1
Published2014
Admission routes1
Has abstractyes

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Same venueProceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIESame topicLaser-Matter Interactions and ApplicationsFrench-language works237,207