Low-noise wideband ultrasound detection using polymer microring resonators.

Polymer microring resonators for low-noise, wideband ultrasound detection are presented. Using a nanoimprinting technique, we fabricated polymer microring resonators with a quality factor of 6000 resulting in high sensitivity to ultrasound. A noise-equivalent pressure of 0.23 kPa over 1-75 MHz and a detection bandwidth of over 90 MHz at -3 dB were measured. These results demonstrate the potential of polymer microring resonators for high-frequency ultrasound and photoacoustic imaging. For a typical photoacoustic imaging test case, the high sensitivity demonstrated in these devices would increase imaging depth by a factor of 3 compared to state-of-the-art polyvinylidene fluoride detectors.

[1]  P. Altmeyer,et al.  High Frequency Ultrasound for High Resolution Skin Imaging , 2001 .

[2]  K.K. Shung,et al.  Development of a 35-MHz piezo-composite ultrasound array for medical imaging , 2006, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[3]  C. Koch,et al.  Measurement of spatial cross sections of ultrasound pressure fields by optical scanning means , 2005, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[4]  Sun,et al.  Photoacoustic monopole radiation in one, two, and three dimensions. , 1991, Physical review letters.

[5]  Alexander A. Oraevsky,et al.  Ultimate sensitivity of time-resolved optoacoustic detection , 2000, BiOS.

[6]  Chung-Yen Chao,et al.  Polymer microring resonators fabricated by nanoimprint technique , 2002 .

[7]  Paul C. Beard,et al.  Ultrahigh-sensitivity wideband Fabry-Perot ultrasound sensors as an alternative to piezoelectric PVDF transducers for biomedical photoacoustic detection , 2004, SPIE BiOS.

[8]  Rodney A. White,et al.  Vascular Imaging before, during, and after Endovascular Repair , 1996, World Journal of Surgery.

[9]  Matthew O'Donnell,et al.  Broadband all-optical ultrasound transducers , 2007 .

[10]  M. O'Donnell,et al.  High frequency optoacoustic arrays using etalon detection , 2000, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[11]  Shriram Sethuraman,et al.  Ex vivo Characterization of Atherosclerosis using Intravascular Photoacoustic Imaging. , 2007, Optics Express.

[12]  Hao Zhang,et al.  Imaging of hemoglobin oxygen saturation variations in single vessels in vivo using photoacoustic microscopy , 2007 .

[13]  Lihong V. Wang,et al.  Photoacoustic imaging of the microvasculature with a high-frequency ultrasound array transducer. , 2007, Journal of biomedical optics.

[14]  Sheng-Wen Huang,et al.  Polymer Microring Resonators for High-Frequency Ultrasound Detection and Imaging , 2008, IEEE Journal of Selected Topics in Quantum Electronics.

[15]  Paul Beard,et al.  Broadband ultrasound field mapping system using a wavelength tuned, optically scanned focused laser beam to address a Fabry Perot polymer film sensor , 2006, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[16]  Volker Wilkens,et al.  Characterization of an optical multilayer hydrophone with constant frequency response in the range from 1 to 75 MHz. , 2003, The Journal of the Acoustical Society of America.

[17]  E. Chérin,et al.  A new ultrasound instrument for in vivo microimaging of mice. , 2002, Ultrasound in medicine & biology.

[18]  K. Okamoto.  Fundamentals of Optical Waveguides , 2000 .

[19]  Matthew O'Donnell,et al.  Optoacoustic imaging using thin polymer étalon , 2005 .

[20]  Matthew O'Donnell,et al.  Ultrasound detection using polymer microring optical resonator , 2004 .

[21]  J. Monchalin.  Optical detection of ultrasound at a distance using a confocal Fabry–Perot interferometer , 1985 .

[22]  Sheng-Wen Huang,et al.  High-frequency ultrasound sensors using polymer microring resonators , 2007, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[23]  Ronald H Silverman,et al.  High-resolution ultrasonic imaging of the posterior segment. , 2004, Ophthalmology.