Prof. Qifa Zhou is currently a Professor at Department of Biomedical Engineering and Ophthalmology at University of Southern California, Los Angeles, CA. Prof. Zhou is a Fellow in SPIE, AIBME and IEEE. He is a member of the ferroelectric Committee, UFFC Society in IEEE. He is also a member of the technical program Committee of Internal Ultrasound Symposium (IUS) in IEEE and photoacoustics plus ultrasound in SPIE Photonics West.  He is an Associate Editor and Chapter Chair of IEEE UFFC. His current research interests include the MEMS technology, nano-medicine, fabrication of high frequency ultrasound transducers/arrays for intravascular imaging applications as well as photoacoustic imaging technology. He has published more than 230 technique papers.  Prof. Zhongping Chen is currently a Professor in the Department of Biomedical Engineering at University of California, Irvine, CA. He is also a co-founder and Board Chairman of OCT Medical Imaigng Inc.. Prof. Chen is a Fellow of AIMBE, SPIE and OSA. He is an international expert on the OCT imaging and pioneered the development of Doppler OCT and OCT angiography.  His current research include the development of optical coherence elastography and multimodality intravascular imaging technology. He has published more than 280 technique papers.