TY - GEN
T1 - Tissue microscopy using optical generation and detection of ultrasound
AU - Ashkenazi, S.
AU - Witte, R.
AU - Kim, K.
AU - Hou, Y.
AU - O'Donnell, M.
PY - 2005
Y1 - 2005
N2 - Optical detection of ultrasound provides a unique and appealing way of forming detector arrays (1D or 2D). Etalon based optical techniques are of particular interest, due to their relatively high sensitivity resulting from multiple optical reflections within the resonance structure. Detector arrays formed by etalon based techniques are characterized by high element density and small element active area, which enables high resolution imaging at high ultrasonic frequencies (typically 10-50 MHz). Laser generated ultrasound using the photoacoustic effect has been demonstrated in recent years as a powerful imaging modality for medical and biological applications. A short laser pulse illuminates a tissue creating rapid thermal expansion and acoustic emission. Detection of the resulting acoustic field by a detector array enables the imaging of the tissue optical absorption using ultrasonic imaging methods. One of the most appealing features of photoacoustic imaging is that it provides access to tissue composition at the molecular level using multiple wavelength illumination.
AB - Optical detection of ultrasound provides a unique and appealing way of forming detector arrays (1D or 2D). Etalon based optical techniques are of particular interest, due to their relatively high sensitivity resulting from multiple optical reflections within the resonance structure. Detector arrays formed by etalon based techniques are characterized by high element density and small element active area, which enables high resolution imaging at high ultrasonic frequencies (typically 10-50 MHz). Laser generated ultrasound using the photoacoustic effect has been demonstrated in recent years as a powerful imaging modality for medical and biological applications. A short laser pulse illuminates a tissue creating rapid thermal expansion and acoustic emission. Detection of the resulting acoustic field by a detector array enables the imaging of the tissue optical absorption using ultrasonic imaging methods. One of the most appealing features of photoacoustic imaging is that it provides access to tissue composition at the molecular level using multiple wavelength illumination.
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U2 - 10.1109/ULTSYM.2005.1602847
DO - 10.1109/ULTSYM.2005.1602847
M3 - Conference contribution
AN - SCOPUS:33847170461
SN - 0780393821
SN - 9780780393820
T3 - Proceedings - IEEE Ultrasonics Symposium
SP - 269
EP - 272
BT - 2005 IEEE Ultrasonics Symposium
T2 - 2005 IEEE Ultrasonics Symposium
Y2 - 18 September 2005 through 21 September 2005
ER -