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Investigation of THz for possible use in medical ultrasound technique

We investigate possible use of terahertz (THz) waves for medical ultrasound technique that can produce enhanced contrast and resolution for achieving high quality and accuracy of biological tissues and human organs imaging for medical applications. The use of THz is particularly suited for this application since THz waves radiate in tiny beams that can focus high energy into micro tissues to produce large thermal-induced acoustic waves needed for enhanced ultrasound imaging. The ability of confining radiation into tiny spots also makes THz well suited for certain technologies such as endoscopic ultrasound to improve minimally invasive diagnostic medical procedures. We present two possible systems for imaging biological samples and human body using a single source (or transmitter) that can generate THz waves at different frequencies concurrently along with multiple acoustic transducers and multiple antennas.