2022
DOI: 10.21037/qims-21-605
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Optical ultrasound sensors for photoacoustic imaging: a narrative review

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Cited by 9 publications
(6 citation statements)
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References 138 publications
(175 reference statements)
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“…On the acoustic signal detection side, the concave surface allows for wide angle signal reception. The sensitivity of the fiber hydrophone can be further enhanced by increasing the sensor Q factor, such as replacing the lossy metal mirrors with the low loss dielectric based distributed Bragg reflectors [21] , [30] or using other sensing method such as whispering gallery mode [32] , [33] , [34] . As shown in Fig.…”
Section: Discussionmentioning
confidence: 99%
“…On the acoustic signal detection side, the concave surface allows for wide angle signal reception. The sensitivity of the fiber hydrophone can be further enhanced by increasing the sensor Q factor, such as replacing the lossy metal mirrors with the low loss dielectric based distributed Bragg reflectors [21] , [30] or using other sensing method such as whispering gallery mode [32] , [33] , [34] . As shown in Fig.…”
Section: Discussionmentioning
confidence: 99%
“…According to the sensing principle, optical ultrasound sensors can be categorized into either resonance-based or nonresonance-based sensors. 29 , 31 Resonance-based sensors operate by detecting variations in a resonance cavity caused by the acoustic pressure. These variations subsequently manifest as changes in the intensity, phase, or wavelength of the probing light.…”
Section: Optical Sensor Technology In Pa Imagingmentioning
confidence: 99%
“…Various optical ultrasound sensors have been developed for PA imaging. According to the sensing principle, optical ultrasound sensors can be categorized into either resonance-based or nonresonance-based sensors 29 , 31 . Resonance-based sensors operate by detecting variations in a resonance cavity caused by the acoustic pressure.…”
Section: Optical Sensor Technology In Pa Imagingmentioning
confidence: 99%
See 1 more Smart Citation
“…Several materials have been proposed in previous works, including carbon nanotubes [ 15 , 16 ], carbon black [ 17 ], organic dyes [ 18 20 ], metallic nanoparticles [ 21 , 22 ], quantum dots [ 23 ], graphene [ 24 ] and candle soot [ 25 , 26 ]. For ultrasound reception, resonance-based acoustic sensors on the optical fibre tips are typically used to detect ultrasound reflections [ 27 ]. Among these sensors, plano-concave resonators with high detection sensitivity and broad detection bandwidth, which can detect the acoustically induced deformations of its polymer cavity, are well-suited for minimally invasive procedures [ 28 ].…”
Section: Introductionmentioning
confidence: 99%