All-optical highly sensitive broadband ultrasound sensor without any deformable parts for photoacoustic imaging

2016 ◽  
Author(s):  
Wolfgang Rohringer ◽  
Stefan Preißer ◽  
Mengyang Liu ◽  
Stefan Zotter ◽  
Zhe Chen ◽  
...  
Keyword(s):  
Photoacoustic Imaging ◽  
Highly Sensitive ◽  
All Optical ◽  
Ultrasound Sensor

scholarly journals All-optical highly sensitive akinetic sensor for ultrasound detection and photoacoustic imaging

2016 ◽  
Vol 7 (10) ◽  
pp. 4171 ◽  
Author(s):  
Stefan Preisser ◽  
Wolfgang Rohringer ◽  
Mengyang Liu ◽  
Christian Kollmann ◽  
Stefan Zotter ◽  
...  
Keyword(s):  
Photoacoustic Imaging ◽  
Highly Sensitive ◽  
All Optical

Sensitive optomechanical ultrasound sensor in a silicon photonic chip towards single-shot photoacoustic imaging with an ultrasound sensor matrix

2021 ◽  
Author(s):  
Cedric Pieters ◽  
Wouter J. Westerveld ◽  
Md. Mahmud-Ul-Hasan ◽  
Simone Severi ◽  
Rami Shnaiderman ◽  
...  
Keyword(s):  
Photoacoustic Imaging ◽  
Single Shot ◽  
Silicon Photonic ◽  
Ultrasound Sensor

All-Optical Highly Sensitive Chromatic Dispersion Monitoring Method Utilizing Phase-Matched Four-Wave Mixing

2011 ◽  
Vol 23 (22) ◽  
pp. 1724-1726 ◽  
Author(s):  
Sheng Cui ◽  
Simin Sun ◽  
Li Li ◽  
Changjian Ke ◽  
Zhujun Wan ◽  
...  
Keyword(s):  
Chromatic Dispersion ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Monitoring Method ◽  
Highly Sensitive ◽  
All Optical

scholarly journals An all-Optical Photoacoustic Sensor for the Detection of Trace Gas

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 3967
Author(s):  
Thomas Lauwers ◽  
Alain Glière ◽  
Skandar Basrour
Keyword(s):  
High Sensitivity ◽  
Element Model ◽  
Remote Detection ◽  
Trace Gas ◽  
Lumped Element ◽  
Highly Sensitive ◽  
Fabry Perot ◽  
All Optical ◽  
Lumped Element Model ◽  
Acoustic Sensitivity

A highly sensitive Fabry–Perot based transduction method is proposed as an all-optical alternative for the detection of trace gas by the photoacoustic spectroscopy technique. A lumped element model is firstly devised to help design the whole system and is successfully compared to finite element method simulations. The fabricated Fabry–Perot microphone consists in a hinged cantilever based diaphragm, processed by laser cutting, and directly assembled at the tip of an optical fiber. We find a high acoustic sensitivity of 630 mV/Pa and a state-of-the-art noise equivalent pressure, as low as ~   2   μ Pa / Hz at resonance. For photoacoustic trace gas detection, the Fabry–Perot microphone is further embedded in a cylindrical multipass cell and shows an ultimate detection limit of 15 ppb of NO in nitrogen. The proposed optical trace gas sensor offers the advantages of high sensitivity and easy assembling, as well as the possibility of remote detection.

scholarly journals Highly Sensitive MoS2–Indocyanine Green Hybrid for Photoacoustic Imaging of Orthotopic Brain Glioma at Deep Site

2018 ◽  
Vol 10 (3) ◽  
Author(s):  
Chengbo Liu ◽  
Jingqin Chen ◽  
Ying Zhu ◽  
Xiaojing Gong ◽  
Rongqin Zheng ◽  
...  
Keyword(s):  
Indocyanine Green ◽  
Photoacoustic Imaging ◽  
Brain Glioma ◽  
Highly Sensitive ◽  
Deep Site
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