کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6956742 | 1451892 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optoacoustic signal excitation with a tone-burst of short pulses
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
طیف سنجی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Individual light pulses with durations in the nanosecond range are most often employed in biomedical optoacoustic imaging. In this excitation regime, ultra-wideband acoustic responses are generated from tissues that cannot be efficiently captured with ultrasound transducers having a limited detection bandwidth. Here, we analyse a narrowband optoacoustic signal excitation mechanism consisting of a tone-burst of multiple equally-delayed pulses. The signal generation efficiency of single-pulse versus tone-burst excitation is compared for normal light exposure levels in the linear optoacoustic signal generation regime as well as when considering non-linearities associated with temperature increase or absorption saturation. The signal-to-noise ratio of the excited signals is also experimentally compared using a highly-absorbing ink phantom.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Photoacoustics - Volume 11, September 2018, Pages 1-5
Journal: Photoacoustics - Volume 11, September 2018, Pages 1-5
نویسندگان
X.L. Deán-Ben, D. Razansky,