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Quasi-periodic distributed feedback laser

Lukas Mahler; Alessandro Tredicucci; Fabio Beltram; Christoph Walther; Jérôme Faist; Harvey E. Beere; David A. Ritchie; Diederik S. Wiersma · Nature Photonics · 2010 · Laser-device experiment using an aperiodic grating

Original publication · Original publication

Recorded summary

An electrically pumped terahertz quantum-cascade laser uses a Fibonacci distributed-feedback grating. Its engineered spectrum supports multicolour operation and directional output behaviour beyond the periodic designs used for comparison.

Recorded limitations

The results concern a fabricated optical resonator. They do not establish general computational acceleration or a biological mechanism; appraisal here is abstract-level.

Evidence and provenance

Chapter Trust Factor uses a minimum of three distinct qualifying studies. Publication records retain their own evidence and assessment.

Study design and assessment
design
Laser-device experiment using an aperiodic grating
assessment
is Randomized Controlled Trial
false
blinding
Not applicable to a clinical-trial grade
basis
Laser-device experiment using an aperiodic grating. No human randomized controlled trial is reported.
sources

https://www.nature.com/articles/nphoton.2009.285

category
peer-reviewed
peer Reviewed
true
trust Factor
score
1
scope
Paper
status
assessed
randomized Controlled Trial
false
blinding
not-confirmed
peer Reviewed
true
basis
Laser-device experiment using an aperiodic grating. No human randomized controlled trial is reported.
sources

https://www.nature.com/articles/nphoton.2009.285

review Scope
Existing publication-specific assessments and bibliographic indexing; no blanket full-text appraisal.
assessed At
2026-10-27
jadad
status
not-applicable
score
Not recorded
reason
Not a human randomized controlled trial.
evidence
evidence Type
Laser-device experiment using an aperiodic grating
evidence Class
physical_experiment
measurement
Terahertz quantum-cascade laser and emission measurements
measured Genes
None recorded
pathways
None recorded
relationship Note
Background literature only. This paper does not test or validate an OXTR–Fibonacci relationship.
clinical Evidence
false
review Depth
Abstract and selected source passages: Abstract; publisher metadata.
full Paper Appraisal
Not completed; review depth states the material assessed.
Topics and recorded topic scores
  1. key
    general:fibonacci-aperiodic-structures
    title
    Aperiodic structures and wave computation
    collection
    general
    trust Score
    1
Citation snapshot and identifiers
id
nature-fibonacci-nphoton.2009.285
doi
10.1038/nphoton.2009.285
pmid
Not recorded
citation Snapshot
count
105
source
Crossref cited-by count
retrieved At
2026-10-24
url
https://api.crossref.org/works/10.1038/nphoton.2009.285
field
is-referenced-by-count
source Indexed At
2026-10-05T19:45:49Z
coverage Note
Count reflects Crossref-deposited references and can differ from publisher or other database totals. It is not a quality or clinical-evidence score.
citations By Collection
general
105
Complete approved library record
id
nature-fibonacci-nphoton.2009.285
aliases
None recorded
title
Quasi-periodic distributed feedback laser
journal
Nature Photonics
publisher Family
nature
publisher Family Label
Nature Portfolio
neurotransmitters
None recorded
year
2010
authors
Lukas Mahler; Alessandro Tredicucci; Fabio Beltram; Christoph Walther; Jérôme Faist; Harvey E. Beere; David A. Ritchie; Diederik S. Wiersma
design
Laser-device experiment using an aperiodic grating
kind
Journal article
identity Conflict
Not recorded
doi
10.1038/nphoton.2009.285
pmid
Not recorded
urls

https://www.nature.com/articles/nphoton.2009.285 · https://doi.org/10.1038/nphoton.2009.285

collections

general

categories

Fibonacci mathematics · Aperiodic structures

targets
None recorded
priority
1
quotes
None recorded
summary
An electrically pumped terahertz quantum-cascade laser uses a Fibonacci distributed-feedback grating. Its engineered spectrum supports multicolour operation and directional output behaviour beyond the periodic designs used for comparison.
limitation
The results concern a fabricated optical resonator. They do not establish general computational acceleration or a biological mechanism; appraisal here is abstract-level.
citation Count
105
citation Snapshot
count
105
source
Crossref cited-by count
retrieved At
2026-10-24
url
https://api.crossref.org/works/10.1038/nphoton.2009.285
field
is-referenced-by-count
source Indexed At
2026-10-05T19:45:49Z
coverage Note
Count reflects Crossref-deposited references and can differ from publisher or other database totals. It is not a quality or clinical-evidence score.
study Design Assessment
is Randomized Controlled Trial
false
blinding
Not applicable to a clinical-trial grade
basis
Laser-device experiment using an aperiodic grating. No human randomized controlled trial is reported.
sources

https://www.nature.com/articles/nphoton.2009.285

category
peer-reviewed
peer Reviewed
true
paper Trust Assessment
score
1
scope
Paper
status
assessed
randomized Controlled Trial
false
blinding
not-confirmed
peer Reviewed
true
basis
Laser-device experiment using an aperiodic grating. No human randomized controlled trial is reported.
sources

https://www.nature.com/articles/nphoton.2009.285

review Scope
Existing publication-specific assessments and bibliographic indexing; no blanket full-text appraisal.
assessed At
2026-10-27
citations By Collection
general
105
topics
  1. key
    general:fibonacci-aperiodic-structures
    title
    Aperiodic structures and wave computation
    collection
    general
    trust Score
    1
journal Key
naturephotonics
journal Label
Nature Photonics
chapter Entries
  1. id
    general-nature-fibonacci-nphoton.2009.285
    title
    Quasi-periodic distributed feedback laser
    journal
    Nature Photonics
    year
    2010
    authors
    Lukas Mahler; Alessandro Tredicucci; Fabio Beltram; Christoph Walther; Jérôme Faist; Harvey E. Beere; David A. Ritchie; Diederik S. Wiersma
    doi
    10.1038/nphoton.2009.285
    pmid
    Not recorded
    urls

    https://www.nature.com/articles/nphoton.2009.285 · https://doi.org/10.1038/nphoton.2009.285

    design
    Laser-device experiment using an aperiodic grating
    summary
    An electrically pumped terahertz quantum-cascade laser uses a Fibonacci distributed-feedback grating. Its engineered spectrum supports multicolour operation and directional output behaviour beyond the periodic designs used for comparison.
    limitation
    The results concern a fabricated optical resonator. They do not establish general computational acceleration or a biological mechanism; appraisal here is abstract-level.
    citation Count
    105
    citation Snapshot
    count
    105
    source
    Crossref cited-by count
    retrieved At
    2026-10-24
    url
    https://api.crossref.org/works/10.1038/nphoton.2009.285
    field
    is-referenced-by-count
    source Indexed At
    2026-10-05T19:45:49Z
    coverage Note
    Count reflects Crossref-deposited references and can differ from publisher or other database totals. It is not a quality or clinical-evidence score.
    categories

    Fibonacci mathematics · Aperiodic structures

    targets
    None recorded
    evidence
    evidence Type
    Laser-device experiment using an aperiodic grating
    evidence Class
    physical_experiment
    measurement
    Terahertz quantum-cascade laser and emission measurements
    measured Genes
    None recorded
    pathways
    None recorded
    relationship Note
    Background literature only. This paper does not test or validate an OXTR–Fibonacci relationship.
    clinical Evidence
    false
    review Depth
    Abstract and selected source passages: Abstract; publisher metadata.
    full Paper Appraisal
    Not completed; review depth states the material assessed.
    record Id
    nature-fibonacci-nphoton.2009.285
    quotes
    None recorded
    source Pages
    None recorded
    paper Trust Assessment
    score
    1
    scope
    Paper
    status
    assessed
    randomized Controlled Trial
    false
    blinding
    not-confirmed
    peer Reviewed
    true
    basis
    Laser-device experiment using an aperiodic grating. No human randomized controlled trial is reported.
    sources

    https://www.nature.com/articles/nphoton.2009.285

    review Scope
    Existing publication-specific assessments and bibliographic indexing; no blanket full-text appraisal.
    assessed At
    2026-10-27
    study Design Assessment
    is Randomized Controlled Trial
    false
    blinding
    Not applicable to a clinical-trial grade
    basis
    Laser-device experiment using an aperiodic grating. No human randomized controlled trial is reported.
    sources

    https://www.nature.com/articles/nphoton.2009.285

    category
    peer-reviewed
    peer Reviewed
    true
    collection
    general
    chapter Number
    9
    topic Id
    fibonacci-aperiodic-structures
    topic Title
    Aperiodic structures and wave computation
    trust Score
    1
evidence
evidence Type
Laser-device experiment using an aperiodic grating
evidence Class
physical_experiment
measurement
Terahertz quantum-cascade laser and emission measurements
measured Genes
None recorded
pathways
None recorded
relationship Note
Background literature only. This paper does not test or validate an OXTR–Fibonacci relationship.
clinical Evidence
false
review Depth
Abstract and selected source passages: Abstract; publisher metadata.
full Paper Appraisal
Not completed; review depth states the material assessed.
jadad
status
not-applicable
score
Not recorded
reason
Not a human randomized controlled trial.
condition Evidence
None recorded
conditions
None recorded
topic Trust Scores

1

full Text
status
not-indexed
retrieval Available
false

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