One of the great inventions in history was the development of the microscope. The ability to see the enormous variety of life and patterns on such a tiny scale changed our understanding of the ...

Alexandre S. Goy and Jason W. Fleischer, Applied Physics Letters107, 211102 (2015). “A model of anisotropic nonlinearity in self-defocusing photorefractive media” Christopher Barsi and Jason W.

Unfortunately, when the ultrasound beam passes through the skull, which is a complex layered structure, it is both attenuated and distorted. This decreases the acoustic pressure at the focus, ...