Excimer Lasers for Medical Applications. The laser research lab has pioneered the development of pulse ultra-violet of excimer lasers for biomedical applications. Professor Grundfest's group continues to investigate cardiovascular, ophthalmologic, orthopaedic and neurosurgical application of this technology. Biologic spectroscopy, the use of spectral data to identify and classify tissue is another major focus of his research. His grouo employs multiple techniques including time resolved spectroscopy, hyperspectro-imaging, photo bleaching and laser attenuation spectroscopy for the study of biologic systems. Clinically, his group is actively involved in the development of minimally invasive imaging and surgical tools