Self-demodulation of high-frequency ultrasound.

  title={Self-demodulation of high-frequency ultrasound.},
  author={Hendrik J. Vos and David E. Goertz and Nico de Jong},
  journal={The Journal of the Acoustical Society of America},
  volume={127 3},
High-frequency (>10 MHz) ultrasound is used in, e.g., small animal imaging or intravascular applications. Currently available ultrasound contrast agents (UCAs) have a suboptimal response for high frequencies. This study therefore investigates the nonlinear propagation effects in a high-frequency ultrasound field (25 MHz) and its use for standard UCA and diagnostic frequencies (1-3 MHz). Nonlinear mixing of two high-frequency carrier waves produces a low-frequency wave, known as the self… CONTINUE READING

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