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Quantum Dots on Optical Nanofiber Tips: A Hybrid Platform for Quantum Photonics

2025· article· W7131637315 on OpenAlex

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

fundA Canadian funder is recorded on the work.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

Venuenot available
Typearticle
Language
FieldEngineering
TopicNear-Field Optical Microscopy
Canadian institutionsnot available
FundersScience and Engineering Research BoardMinistry of Education, IndiaUniversity Grants Commission of BangladeshUniversity of HyderabadMinistry of Higher Education and Scientific ResearchResearch Manitoba
KeywordsQuantum dotPolarization (electrochemistry)Excited statePhotonPhotonicsExcitationFluorescenceElectro-absorption modulatorOptical fiber

Abstract

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We experimentally demonstrate fluorescence emission coupling from quantum dots (QDs) into optical nanofiber tip (ONFT) guided modes and the polarization response of the coupled system. Additionally, we conduct simulations of the proposed system consisting of the ONFT and a single dipole source (SDS). For a radially oriented SDS of emission wavelength at 620 nm, positioned at the center of the ONFT facet, the maximum coupling efficiency <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$(\eta)$</tex> reaches 44%. The polarization response for the SDS on the side and the facet of the ONFT are numerically investigated, and the degree of polarization (DOP) determined on the facet/side is 99%/52%. ONFTs are realized using chemical etching technique using hydrofluoric acid. QDs are deposited on ONFTs using a micro/nano-fluidic technique. QDs on the ONFT are excited using excitation schemes such as free space and guided. The fluorescence photons emitted from QDs are coupled into guided modes of the ONFT. It is confirmed by measuring the fluorescence photon counting and emission spectrum. The emission polarization characteristics of the fluorescence photons are measured. The polarization characteristics are demonstrated by varying the emission and excitation polarization planes, and the DOP is determined. The estimated DOP value ranges from 17 to 30%.

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)0.000
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 categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.895
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.001

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 head0.016
GPT teacher head0.273
Teacher spread0.257 · 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

Quick stats

Citations0
Published2025
Admission routes1
Has abstractyes

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