Ultrasound transducers Although this technology has been continuously improved over the past few decades, it is still limited in terms of acoustic bandwidth and sensitivity. In search of newer solutions, researchers at King's College, University of London, Texas, have developed a new technology that uses photosensitive materials to directly convert sound waves into light beams. The team claims that the material improves acoustic bandwidth and sensitivity and can significantly improve ultrasound imaging performance in medical and other areas.
Professor Lakislav Yakovlev pointed out that the material consists of gold nanorods embedded in polymer polypyrrole. He said that there is nothing more extensive than this material in nature, it will provide the properties we need, with higher sensitivity and wider sound bandwidth. We can get 0-150 MHz without sacrificing sensitivity. The current technology around 50 MHz will result in a decrease in sensitivity.
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