Evidence map›Paper›PMID 41332509›Full record

ArticlePhotoacoustics2025

Ultra-miniature and sensitive optical fiber-tip optomechanical resonant photoacoustic spectroscopy gas sensors.

Taige Li, Pengcheng Zhao, Peng Wang, Shangming Liu, Linhao Guo, Wei Jin, A Ping Zhang

Erratum issuedAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Photoacoustics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Taige LiPhotonics Research Institute, Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.
Pengcheng ZhaoPhotonics Research Institute, Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.
Peng WangPhotonics Research Institute, Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.
Shangming LiuPhotonics Research Institute, Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.
Linhao GuoPhotonics Research Institute, Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.
Wei JinPhotonics Research Institute, Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.
A Ping ZhangPhotonics Research Institute, Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Optomechanical resonator (OMR)-based photoacoustic spectroscopy (PAS) sensors have garnered significant attention for ultra-sensitive and selective trace-gas detection. However, it remains challenging for optomechanical resonant PAS (OMR-PAS) sensors to achieve both high sensitivity and miniature size for trace-gas detection with minimal consumption in space-constrained environments. Here, we present a monolithically designed optical fiber-tip OMR-PAS sensor, in which a micrometer-scale planar-spiral-spring OMR (PSS-OMR) is 3D micro-printed on the end face of optical fiber, enabling ultrasensitive gas sensing with nanoliter-level consumption. Compared to off-resonance operation, this fiber-tip OMR-PAS sensor operating in resonance mode produces a significantly stronger photoacoustic signal, improving the signal-to-noise ratio by more than five times. The sensor can detect acetylene gas at 55 ppb without the need for an additional photoacoustic cell. Its response time can be as fast as 0.2 s. This ultra-miniature and highly sensitive fiber-tip OMR-PAS sensor may become a powerful tool for various trace-gas monitoring applications.

Indexed as

3D micro-printingFabry-Pérot cavityOptical fiber gas sensorsOptomechanical microresonatorPhotoacoustic spectroscopy

Identifiers

PMID41332509
PMCPMC12666110

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.