Abstract: We present an ultra-broadband photodetector using a uni-traveling carrier (UTC) structure with a good impedancematching circuit. The measured O-E frequency response exhibited a 3 dB ...

When you're driving on land, speed is measured in either miles per hour (mph) or kilometers per hour (km/h). These measurements are straightforward because you can see stationary landmarks and ...

Abstract: Several metrics have been proposed in ultrasound pulse-echo imaging to quantify local coherence, with the coherence factor being the most prominent example. However, the coherence factor ...