Multi-dimensional & multi-frequency ultrasound transducers

An ultrasound device comprising:

• a lens;
• a high frequency array comprising a center row of transducer elements comprising a center row of transducer elements that operate at a first frequency and a low frequency array comprising two outer rows of transducer elements that operate at a second frequency different than the first frequency, the center row of transducer elements being between the two outer rows of transducer elements;
• and
• a controller coupled and configured to control each of the high frequency array and the low frequency array in a plurality of modes to operate at a same time or at different times, wherein the controller is operable to control both the high frequency array and low frequency array to operate at the same time to receive, by both the high and low frequency arrays, reflected signals from ultrasound that has been transmitted to perform super broadband harmonic imaging based on the received signals.