High-resolution ultrasonic imaging using an etalon detector array

Sheng-Wen Huang; Yang Hou; Ashkenazi, Shai; O’Donnell, Matthew
September 2008
Applied Physics Letters;9/15/2008, Vol. 93 Issue 11, p113501
Academic Journal
A photoacoustic imaging system was built and tested to demonstrate the feasibility of high-resolution low-noise ultrasonic imaging based on parallel detection using polymer etalons. Its capability of detecting ultrasound at different elements simultaneously in the optical end was verified by imaging three 49 μm beads. An average noise-equivalent pressure of 3.6 kPa over 50 MHz for 50 μm diameter detection elements in a two-dimensional array with a diameter of 1.35 mm and a detection bandwidth of 75 MHz at –3 dB was measured. These results demonstrate the potential of polymer etalons for high-frame-rate high-resolution three-dimensional photoacoustic and ultrasound pulse-echo imaging.


Related Articles

  • Photoacoustic measurement of thermal diffusivity of polymer foils. Leite, N. F.; Cella, N.; Vargas, H.; Miranda, L. C. M. // Journal of Applied Physics;4/15/1987, Vol. 61 Issue 8, p3025 

    Focuses on a study that discussed the photoacoustic measurement of polymer foils 170 to 200 micrometer thick. Details of the experiment; Results and discussion.

  • Enhancement of photoacoustic detection of inhomogeneities in polymers. Grondona, P.; Di Rocco, H. O.; Iriarte, D. I.; Pomarico, J. A.; Ranea-Sandoval, H. F.; Bilmes, G. M. // Papers in Physics;2013, Vol. 5, p1 

    We report a series of experiments on laser pulsed photoacoustic excitation in turbid polymer samples addressed to evaluate the sound speed in the samples and the presence of inhomogeneities in the bulk. We describe a system which allows the direct measurement of the speed of the detected waves...

  • C-scan enhancement using recursive subspace deconvolution. Qidwai, Uvais; Chen, C. H. // AIP Conference Proceedings;2002, Vol. 615 Issue 1, p655 

    C-scan images are formed by mapping the windowed A-scan energy levels into pixel values. This operation limits the resolution of the resulting image due to the blurring effect of squared summations and the mechanical positioning resolution. However, one feature that is found in all such images...

  • Optical properties in the visible and infrared spectrum of fiber-reinforced composites determined by combined photoacoustic and IR detection (abstract). Gibkes, J.; Fotsing, J. L. N.; Dietzel, D.; Bein, B. K.; Pelzl, J. // Review of Scientific Instruments;Jan2003, Vol. 74 Issue 1, p651 

    Carbon based fiber-reinforced composites are mostly used because of their particular mechanical properties combining a low specific weight with good elastic properties, namely from stability and break resistance. This combination allows applications which are not realizable with other materials....

  • New imaging technique gives clearer picture of living organs. Ford, Omar // Medical Device Daily;8/15/2012, Vol. 16 Issue 158, p1 

    The article discusses research done on combined imaging techniques that give clearer picture of living organs. It references a study by Lihong Wang and colleagues, published in the July 15, 2012 issue of "Nature Medicine." The imaging technique combines both photoacoustics and ultrasound, which...

  • Effect of PIPS technique at different power settings on irrigating solution extrusion. Arslan, Hakan; Akcay, Merve; Ertas, Hüseyin; Capar, Ismail; Saygili, Gökhan; Meşe, Merve // Lasers in Medical Science;Aug2015, Vol. 30 Issue 6, p1641 

    The aim of this study was to determine the effect of photon-induced photoacoustic streaming (PIPS) technique at different power settings on extrusion of irrigating solution. Root canal preparation was performed up to a #30 file on 64 extracted single-rooted mandibular premolar teeth, which were...

  • Photoacoustic tomography based on the Green's function retrieval with ultrasound interferometry for sample partially behind an acoustically scattering layer. Jie Yin; Chao Tao; Peng Cai; Xiaojun Liu // Applied Physics Letters;6/8/2015, Vol. 106 Issue 23, p1 

    Acoustically inhomogeneous mediums with multiple scattering are often the nightmare of photoacoustic tomography. In order to break this limitation, a photoacoustic tomography scheme combining ultrasound interferometry and time reversal is proposed to achieve images in acoustically scattering...

  • Laser-generated focused ultrasound for arbitrary waveforms. Weiwei Chan; Hies, Thomas; Ohl, Claus-Dieter // Applied Physics Letters;10/24/2016, Vol. 109 Issue 17, p174102-1 

    Transducers for laser generated focused ultrasound can achieve photoacoustic waves with several hundred bars positive pressure in water. Previous designs employed concave glass substrates decorated with catalytically grown carbon nanotubes. Here, we show that arbitrarily shaped surfaces made of...

  • Fiber-Amplifier-Enhanced QEPAS Sensor for Simultaneous Trace Gas Detection of NH3 and H2S. Hongpeng Wu; Lei Dong; Xiaoli Liu; Huadan Zheng; Xukun Yin; Weiguang Ma; Lei Zhang; Wangbao Yin; Suotang Jia // Sensors (14248220);Oct2015, Vol. 15 Issue 10, p26743 

    A selective and sensitive quartz enhanced photoacoustic spectroscopy (QEPAS) sensor, employing an erbium-doped fiber amplifier (EDFA), and a distributed feedback (DFB) laser operating at 1582 nm was demonstrated for simultaneous detection of ammonia (NH3) and hydrogen sulfide (H2S). Two...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics