My research involves looking deep within the body without making an incision. This is similar to ultrasound imaging, except I am interested in using light instead of sound. Light provides superior resolution, allowing you to see details on the cellular level. How can you see through the body? If you have ever looked at a flashlight pressed under your hand, you have witnessed light traveling through thick tissue. Biomedical imaging entails using lasers, nonlinear optics, and other clever tools to extract images from beneath the surface of biological tissue. With applications in cancer research, nanoparticle characterization, fiber optic endoscopes, and in vivo imaging, these efforts together will provide access to a breathtaking array of unlabeled biological structures. By combining concepts in condensed matter physics, electromagnetism, quantum mechanics, optics, and biology, this area of research is ideal for undergraduate learning and an enrichment of their understanding of physics.