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Record W3123229599 · doi:10.1002/adom.202100176

Multi‐Functional Metasurface: Visibly and RF Transparent, NIR Control and Low Thermal Emissivity

2021· preprint· en· W3123229599 on OpenAlex
Mahdi Safari, Nazir P. Kherani, George V. Eleftheriades

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueAdvanced Optical Materials · 2021
Typepreprint
Languageen
FieldMaterials Science
TopicMetamaterials and Metasurfaces Applications
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsMetamaterialMaterials scienceOptoelectronicsOpacityLow emissivityEmissivityIndium tin oxideRadio frequencyReflection (computer programming)Energy conservationDielectricEfficient energy useOpticsComputer scienceNanotechnologyElectrical engineeringTelecommunicationsPhysicsThin filmEngineering

Abstract

fetched live from OpenAlex

Abstract Rapid advances in metamaterial technology are enabling the engineering of wave–matter interactions heretofore not realized and functionalities with potentially far‐reaching implications for major challenges in the fields of energy conservation and radio frequency (RF) communication. A visibly and RF transparent composite metasurface utilizing dielectric–metal spectrally selective coatings with high near‐infrared control and low thermal emissivity is proposed, thus achieving a multi‐functional metasurface capable of enhancing fifth‐generation (5G) communication efficiency and exhibiting energy conservation features. The proposed meta‐glass yields 92% peak RF transmission at 30 GHz which corresponds to 20% and 90% enhancement when compared to plain glass and low‐emissive glass substrates. This meta‐glass possesses 86% peak optical transparency at λ = 550 nm, >60% near‐infrared reflection, and >80% mid‐infrared reflection which corresponds to ≈0.2 thermal emissivity. The proposed metasurface design is highly flexible and can be tuned to operate over different frequency ranges owing to its frequency scalability. This study provides a better alternative using earth‐abundant materials compared to low‐emissive glass based on indium tin oxide while boosting the efficiency of 5G communication amenable to window systems demanding simultaneous functionalities for emergent smart/energy‐efficient buildings/cities and autonomous transportation applications.

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.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
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 score0.044
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
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 head0.030
GPT teacher head0.287
Teacher spread0.256 · 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