Evidence map›Paper›PMID 39584032›Full record

ArticleACS photonics2024

Harmonic and Subharmonic RF Injection Locking of THz Metasurface Quantum-Cascade VECSEL.

Yu Wu, Michael A Schreiber, Anthony D Kim, Sadhvikas J Addamane, Christian Jirauschek, Benjamin S Williams

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in ACS photonics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

6 authors.

Yu WuDepartment of Electrical and Computer Engineering, University of California, Los Angeles, California 90095, United States.ORCID https://orcid.org/0000-0002-0033-1091
Michael A SchreiberTUM School of Computation, Information and Technology, Technical University of Munich, Garching 85748, Germany.
Anthony D KimDepartment of Electrical and Computer Engineering, University of California, Los Angeles, California 90095, United States.ORCID https://orcid.org/0000-0003-2150-2969
Sadhvikas J AddamaneSandia National Laboratories, Center of Integrated Nanotechnologies, MS 1303, Albuquerque, New Mexico 87185, United States.
Christian JirauschekTUM School of Computation, Information and Technology, Technical University of Munich, Garching 85748, Germany.
Benjamin S WilliamsDepartment of Electrical and Computer Engineering, University of California, Los Angeles, California 90095, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Harmonic and subharmonic RF injection locking is demonstrated in a terahertz (THz) quantum-cascade vertical-external-cavity surface-emitting laser (QC-VECSEL). By tuning the RF injection frequency around integer multiples and submultiples of the cavity round-trip frequency, different harmonic and subharmonic orders can be excited in the same device. Modulation-dependent behavior of the device has been studied with recorded lasing spectral broadening and locking bandwidths in each case. In particular, harmonic injection locking results in the observation of harmonic spectra with bandwidths over 200 GHz. A semiclassical Maxwell-density matrix formalism has been applied to interpret QC-VECSEL dynamics, which aligns well with experimental observations.

Identifiers

PMID39584032
PMCPMC11583302

What OpenQuestion holds

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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.