CARS Signal Optimization With Convergence Compensation in Thermometry

Kaiyuan Song; Yuan Zhang; Sheng Yun; Hui Ge; Sheng Zhang; Meng Liu; Yanyan Deng; Yulei Wang; Zhiwei Lu; Yuanqin Xia

doi:10.1109/LPT.2024.3517412

CARS Signal Optimization With Convergence Compensation in Thermometry

Kaiyuan Song
, Yuan Zhang
, Sheng Yun
, Hui Ge
, Sheng Zhang
, Meng Liu
, Yanyan Deng
, Yulei Wang
, Zhiwei Lu
, Yuanqin Xia^*

^*Corresponding author for this work

Hebei University of Technology
Harbin Institute of Technology
School of Physics, Harbin Institute of Technology

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

Abstract

Femtosecond chirped probe pulse (CPP) CARS technology is recognized for its non-interference, high precision, and time resolution, making it a potent tool for measuring temperature in complex combustion scenarios. However, the signal quality can be compromised by self-focusing and chromatic aberration effects. This letter proposes that multi-pulse modulation with lens combination is beneficial to optimize phase matching of focal spot intersections and increase the intensity utilization of the pulses. The study suggests using multi-pulse modulation with lens combination to enhance phase matching and pulse intensity utilization, so as to improve the signal strength by an order of magnitude. This method successfully measures temperatures in high-temperature turbulent flames at 698 K and 1394 K, offering an effective strategy for boosting CARS signal intensity and temperature measurement speed.

Original language	English
Pages (from-to)	389-392
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	37
Issue number	7
DOIs	https://doi.org/10.1109/LPT.2024.3517412
State	Published - 2025
Externally published	Yes

Keywords

Femtosecond coherent anti-Stokes Raman scattering
chirped probe pulse
spot size
temperature measurements
time resolution

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10.1109/LPT.2024.3517412

Cite this

@article{448347956e2647d38dd4f14a3601edb8,

title = "CARS Signal Optimization With Convergence Compensation in Thermometry",

abstract = "Femtosecond chirped probe pulse (CPP) CARS technology is recognized for its non-interference, high precision, and time resolution, making it a potent tool for measuring temperature in complex combustion scenarios. However, the signal quality can be compromised by self-focusing and chromatic aberration effects. This letter proposes that multi-pulse modulation with lens combination is beneficial to optimize phase matching of focal spot intersections and increase the intensity utilization of the pulses. The study suggests using multi-pulse modulation with lens combination to enhance phase matching and pulse intensity utilization, so as to improve the signal strength by an order of magnitude. This method successfully measures temperatures in high-temperature turbulent flames at 698 K and 1394 K, offering an effective strategy for boosting CARS signal intensity and temperature measurement speed.",

keywords = "Femtosecond coherent anti-Stokes Raman scattering, chirped probe pulse, spot size, temperature measurements, time resolution",

author = "Kaiyuan Song and Yuan Zhang and Sheng Yun and Hui Ge and Sheng Zhang and Meng Liu and Yanyan Deng and Yulei Wang and Zhiwei Lu and Yuanqin Xia",

note = "Publisher Copyright: {\textcopyright} 1989-2012 IEEE.",

year = "2025",

doi = "10.1109/LPT.2024.3517412",

language = "英语",

volume = "37",

pages = "389--392",

journal = "IEEE Photonics Technology Letters",

issn = "1041-1135",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "7",

}

TY - JOUR

T1 - CARS Signal Optimization With Convergence Compensation in Thermometry

AU - Song, Kaiyuan

AU - Zhang, Yuan

AU - Yun, Sheng

AU - Ge, Hui

AU - Zhang, Sheng

AU - Liu, Meng

AU - Deng, Yanyan

AU - Wang, Yulei

AU - Lu, Zhiwei

AU - Xia, Yuanqin

PY - 2025

Y1 - 2025

N2 - Femtosecond chirped probe pulse (CPP) CARS technology is recognized for its non-interference, high precision, and time resolution, making it a potent tool for measuring temperature in complex combustion scenarios. However, the signal quality can be compromised by self-focusing and chromatic aberration effects. This letter proposes that multi-pulse modulation with lens combination is beneficial to optimize phase matching of focal spot intersections and increase the intensity utilization of the pulses. The study suggests using multi-pulse modulation with lens combination to enhance phase matching and pulse intensity utilization, so as to improve the signal strength by an order of magnitude. This method successfully measures temperatures in high-temperature turbulent flames at 698 K and 1394 K, offering an effective strategy for boosting CARS signal intensity and temperature measurement speed.

AB - Femtosecond chirped probe pulse (CPP) CARS technology is recognized for its non-interference, high precision, and time resolution, making it a potent tool for measuring temperature in complex combustion scenarios. However, the signal quality can be compromised by self-focusing and chromatic aberration effects. This letter proposes that multi-pulse modulation with lens combination is beneficial to optimize phase matching of focal spot intersections and increase the intensity utilization of the pulses. The study suggests using multi-pulse modulation with lens combination to enhance phase matching and pulse intensity utilization, so as to improve the signal strength by an order of magnitude. This method successfully measures temperatures in high-temperature turbulent flames at 698 K and 1394 K, offering an effective strategy for boosting CARS signal intensity and temperature measurement speed.

KW - Femtosecond coherent anti-Stokes Raman scattering

KW - chirped probe pulse

KW - spot size

KW - temperature measurements

KW - time resolution

UR - https://www.scopus.com/pages/publications/105001208792

U2 - 10.1109/LPT.2024.3517412

DO - 10.1109/LPT.2024.3517412

M3 - 文章

AN - SCOPUS:105001208792

SN - 1041-1135

VL - 37

SP - 389

EP - 392

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 7

ER -

CARS Signal Optimization With Convergence Compensation in Thermometry

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Keywords

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