Evidence map›Paper›PMID 34899974›Full record

ArticleNature photonics2021

Femtosecond pulses from a mid-infrared quantum cascade laser.

Philipp Täschler, Mathieu Bertrand, Barbara Schneider, Matthew Singleton, Pierre Jouy, Filippos Kapsalidis, Mattias Beck, Jérôme Faist

Abstract read
In one paragraph

Article in Nature photonics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Article
  2. Article
  3. The theory of the quantum walk comb laser.Nanophotonics (Berlin, Germany) · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. Active mid-infrared ring resonators.Nature communications · 2024
    Article
  8. Article
  9. GaAs-chip-based mid-infrared supercontinuum generation.Light, science & applications · 2023
    Article
  10. Review
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Philipp TäschlerInstitute for Quantum Electronics, ETH Zurich, Zurich, Switzerland.ORCID 0000-0001-7737-8704
Mathieu BertrandInstitute for Quantum Electronics, ETH Zurich, Zurich, Switzerland.
Barbara SchneiderInstitute for Quantum Electronics, ETH Zurich, Zurich, Switzerland.ORCID 0000-0003-2433-9693
Matthew SingletonInstitute for Quantum Electronics, ETH Zurich, Zurich, Switzerland.
Pierre JouyInstitute for Quantum Electronics, ETH Zurich, Zurich, Switzerland.
Filippos KapsalidisInstitute for Quantum Electronics, ETH Zurich, Zurich, Switzerland.ORCID 0000-0001-5927-0038
Mattias BeckInstitute for Quantum Electronics, ETH Zurich, Zurich, Switzerland.ORCID 0000-0002-0260-5797
Jérôme FaistInstitute for Quantum Electronics, ETH Zurich, Zurich, Switzerland.ORCID 0000-0003-4429-7988

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The quantum cascade laser has evolved to be a compact, powerful source of coherent mid-infrared light; however, its fast gain dynamics strongly restricts the formation of ultrashort pulses. As such, the shortest pulses reported so far were limited to a few picoseconds with some hundreds of milliwatts of peak power, strongly narrowing their applicability for time-resolved and nonlinear experiments. Here we demonstrate an approach capable of producing near-transform-limited subpicosecond pulses with several watts of peak power. Starting from a frequency-modulated phase-locked state, ultrashort high-peak-power pulses are generated via spectral filtering, gain modulation-induced spectral broadening and external pulse compression. We assess their temporal nature by means of a novel asynchronous sampling method, coherent beat note interferometry and interferometric autocorrelation. These results open new pathways for nonlinear physics in the mid-infrared.

Indexed as

Frequency combsMid-infrared photonicsQuantum cascade lasersUltrafast lasersUltrafast photonics

Identifiers

PMID34899974
PMCPMC8629755

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.