1. Center for Advanced Diffusion-Wave and Photoacoustic Technologies (CADIPT), University of Toronto, Toronto M5S 3G8, Ontario, Canada
2. Technological University of Queretaro (UTEQ), Pie de la Cuesta Avenue 2501, Unidad Nacional, Queretaro, Mexico
3. School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China