Elliptical Acoustic Resonator-Based Dual-Quartz-Enhanced Photoacoustic Spectroscopy Sensing

Shunda Qiao; Bangyu Liu; Ziheng Lv; Ying He; Xiyang Zhi; Lixian Liu; Andreas Mandelis; Yufei Ma

doi:10.1021/acs.analchem.5c07844

Elliptical Acoustic Resonator-Based Dual-Quartz-Enhanced Photoacoustic Spectroscopy Sensing

Shunda Qiao
, Bangyu Liu
, Ziheng Lv
, Ying He
, Xiyang Zhi
, Lixian Liu
, Andreas Mandelis
, Yufei Ma^*

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology
Xidian University
University of Toronto

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

This paper presents a dual-quartz-enhanced photoacoustic spectroscopy (D-QEPAS) sensor based on an elliptical acoustic resonator (EAR) for the first time. The sensor, leveraging the acoustic focusing characteristics of the EAR and a synchronous detection mechanism with dual quartz tuning forks (QTFs), effectively resolves the low acoustic energy utilization issue in traditional QEPAS systems. Dual QTFs were positioned at the two focal points within the EAR to achieve efficient acoustic energy collection and signal superposition. An EAR theoretical model was established and calculated using the finite element analysis method for performance optimization. With acetylene (C₂H₂) as the target gas, results demonstrate that the signal intensity of the EAR-based D-QEPAS system exhibits an approximately 13.05x enhancement compared with the traditional QEPAS system.

Original language	English
Pages (from-to)	5707-5714
Number of pages	8
Journal	Analytical Chemistry
Volume	98
Issue number	7
DOIs	https://doi.org/10.1021/acs.analchem.5c07844
State	Published - 24 Feb 2026

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title = "Elliptical Acoustic Resonator-Based Dual-Quartz-Enhanced Photoacoustic Spectroscopy Sensing",

abstract = "This paper presents a dual-quartz-enhanced photoacoustic spectroscopy (D-QEPAS) sensor based on an elliptical acoustic resonator (EAR) for the first time. The sensor, leveraging the acoustic focusing characteristics of the EAR and a synchronous detection mechanism with dual quartz tuning forks (QTFs), effectively resolves the low acoustic energy utilization issue in traditional QEPAS systems. Dual QTFs were positioned at the two focal points within the EAR to achieve efficient acoustic energy collection and signal superposition. An EAR theoretical model was established and calculated using the finite element analysis method for performance optimization. With acetylene (C2H2) as the target gas, results demonstrate that the signal intensity of the EAR-based D-QEPAS system exhibits an approximately 13.05x enhancement compared with the traditional QEPAS system.",

author = "Shunda Qiao and Bangyu Liu and Ziheng Lv and Ying He and Xiyang Zhi and Lixian Liu and Andreas Mandelis and Yufei Ma",

note = "Publisher Copyright: {\textcopyright} 2026 American Chemical Society",

year = "2026",

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day = "24",

doi = "10.1021/acs.analchem.5c07844",

language = "英语",

volume = "98",

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T1 - Elliptical Acoustic Resonator-Based Dual-Quartz-Enhanced Photoacoustic Spectroscopy Sensing

AU - Qiao, Shunda

AU - Liu, Bangyu

AU - Lv, Ziheng

AU - He, Ying

AU - Zhi, Xiyang

AU - Liu, Lixian

AU - Mandelis, Andreas

AU - Ma, Yufei

PY - 2026/2/24

Y1 - 2026/2/24

N2 - This paper presents a dual-quartz-enhanced photoacoustic spectroscopy (D-QEPAS) sensor based on an elliptical acoustic resonator (EAR) for the first time. The sensor, leveraging the acoustic focusing characteristics of the EAR and a synchronous detection mechanism with dual quartz tuning forks (QTFs), effectively resolves the low acoustic energy utilization issue in traditional QEPAS systems. Dual QTFs were positioned at the two focal points within the EAR to achieve efficient acoustic energy collection and signal superposition. An EAR theoretical model was established and calculated using the finite element analysis method for performance optimization. With acetylene (C2H2) as the target gas, results demonstrate that the signal intensity of the EAR-based D-QEPAS system exhibits an approximately 13.05x enhancement compared with the traditional QEPAS system.

AB - This paper presents a dual-quartz-enhanced photoacoustic spectroscopy (D-QEPAS) sensor based on an elliptical acoustic resonator (EAR) for the first time. The sensor, leveraging the acoustic focusing characteristics of the EAR and a synchronous detection mechanism with dual quartz tuning forks (QTFs), effectively resolves the low acoustic energy utilization issue in traditional QEPAS systems. Dual QTFs were positioned at the two focal points within the EAR to achieve efficient acoustic energy collection and signal superposition. An EAR theoretical model was established and calculated using the finite element analysis method for performance optimization. With acetylene (C2H2) as the target gas, results demonstrate that the signal intensity of the EAR-based D-QEPAS system exhibits an approximately 13.05x enhancement compared with the traditional QEPAS system.

UR - https://www.scopus.com/pages/publications/105030922349

U2 - 10.1021/acs.analchem.5c07844

DO - 10.1021/acs.analchem.5c07844

M3 - 文章

AN - SCOPUS:105030922349

SN - 0003-2700

VL - 98

SP - 5707

EP - 5714

JO - Analytical Chemistry

JF - Analytical Chemistry

IS - 7

ER -

Elliptical Acoustic Resonator-Based Dual-Quartz-Enhanced Photoacoustic Spectroscopy Sensing

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