Enhanced acoustic pressure sensors based on coherent perfect absorber-laser effect

Mohamed Farhat; Waqas Waseem Ahmed; Abdelkrim Khelif; Khaled N. Salama; Ying Wu

doi:10.1063/5.0041771

Enhanced acoustic pressure sensors based on coherent perfect absorber-laser effect

Mohamed Farhat, Waqas Waseem Ahmed, Abdelkrim Khelif, Khaled N. Salama, Ying Wu

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

8 Scopus citations

Abstract

Lasing is a well-established field in optics with several applications. Yet, having lasing or huge amplification in other wave systems remains an elusive goal. Here, we utilize the concept of coherent perfect absorber-laser to realize an acoustic analog of laser with a proven amplification of more than 10 4 in terms of the scattered acoustic signal at a frequency of a few kHz. The obtained acoustic laser (or the coherent perfect absorber-laser) is shown to possess extremely high sensitivity and figure of merit with regard to ultra-small variations of the pressure (density and compressibility) and suggests its evident potential to build future acoustic pressure devices such as precise sensors.

Original language	English (US)
Pages (from-to)	104902
Journal	Journal of Applied Physics
Volume	129
Issue number	10
DOIs	https://doi.org/10.1063/5.0041771
State	Published - Mar 14 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-03-30
Acknowledged KAUST grant number(s): BAS/1/1626-01-01, OSR-2016-CRG5-2950
Acknowledgements: The research reported in this paper was supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Grant No. OSR-2016-CRG5-2950 and KAUST Baseline Research Fund No. BAS/1/1626-01-01.

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/5.0041771

https://repository.kaust.edu.sa/bitstream/10754/668357/1/Enhanced_5.0041771.pdf

Cite this

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title = "Enhanced acoustic pressure sensors based on coherent perfect absorber-laser effect",

abstract = "Lasing is a well-established field in optics with several applications. Yet, having lasing or huge amplification in other wave systems remains an elusive goal. Here, we utilize the concept of coherent perfect absorber-laser to realize an acoustic analog of laser with a proven amplification of more than 10 4 in terms of the scattered acoustic signal at a frequency of a few kHz. The obtained acoustic laser (or the coherent perfect absorber-laser) is shown to possess extremely high sensitivity and figure of merit with regard to ultra-small variations of the pressure (density and compressibility) and suggests its evident potential to build future acoustic pressure devices such as precise sensors.",

author = "Mohamed Farhat and Ahmed, {Waqas Waseem} and Abdelkrim Khelif and Salama, {Khaled N.} and Ying Wu",

note = "KAUST Repository Item: Exported on 2021-03-30 Acknowledged KAUST grant number(s): BAS/1/1626-01-01, OSR-2016-CRG5-2950 Acknowledgements: The research reported in this paper was supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Grant No. OSR-2016-CRG5-2950 and KAUST Baseline Research Fund No. BAS/1/1626-01-01.",

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AU - Farhat, Mohamed

AU - Ahmed, Waqas Waseem

AU - Khelif, Abdelkrim

AU - Salama, Khaled N.

AU - Wu, Ying

N1 - KAUST Repository Item: Exported on 2021-03-30 Acknowledged KAUST grant number(s): BAS/1/1626-01-01, OSR-2016-CRG5-2950 Acknowledgements: The research reported in this paper was supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Grant No. OSR-2016-CRG5-2950 and KAUST Baseline Research Fund No. BAS/1/1626-01-01.

PY - 2021/3/14

Y1 - 2021/3/14

N2 - Lasing is a well-established field in optics with several applications. Yet, having lasing or huge amplification in other wave systems remains an elusive goal. Here, we utilize the concept of coherent perfect absorber-laser to realize an acoustic analog of laser with a proven amplification of more than 10 4 in terms of the scattered acoustic signal at a frequency of a few kHz. The obtained acoustic laser (or the coherent perfect absorber-laser) is shown to possess extremely high sensitivity and figure of merit with regard to ultra-small variations of the pressure (density and compressibility) and suggests its evident potential to build future acoustic pressure devices such as precise sensors.

AB - Lasing is a well-established field in optics with several applications. Yet, having lasing or huge amplification in other wave systems remains an elusive goal. Here, we utilize the concept of coherent perfect absorber-laser to realize an acoustic analog of laser with a proven amplification of more than 10 4 in terms of the scattered acoustic signal at a frequency of a few kHz. The obtained acoustic laser (or the coherent perfect absorber-laser) is shown to possess extremely high sensitivity and figure of merit with regard to ultra-small variations of the pressure (density and compressibility) and suggests its evident potential to build future acoustic pressure devices such as precise sensors.

UR - http://hdl.handle.net/10754/668357

UR - https://aip.scitation.org/doi/10.1063/5.0041771

UR - http://www.scopus.com/inward/record.url?scp=85102523511&partnerID=8YFLogxK

U2 - 10.1063/5.0041771

DO - 10.1063/5.0041771

M3 - Article

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SP - 104902

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10

ER -

Enhanced acoustic pressure sensors based on coherent perfect absorber-laser effect

Abstract

Bibliographical note

ASJC Scopus subject areas

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