Using high-frequency sound waves to ... can be controlled by altering the frequency, polarization and amplitude of the applied sound wave. This approach offers far more rapid tuning than a ...

You need to know about these quantities used in waves - what they mean, the symbols used for them and the units used to measure them. Don't get confused with this quantity frequency. It is not a ...

Photonic technology can now be used to construct miniature sources of high-frequency radio ... devices that produce periodic waves whose amplitude, phase and frequency can be precisely controlled ...