My research is centered on the development of infrared, visible and ultraviolet frequency combs (stabilized pulsed lasers) and their uses in fundamental physics, industry and medical applications. Long term goals of my research plan include achieving highly sensitive magnetometry and direct optical nuclear spin polarization of noble gases. Highly sensitive magnetometry would make it possible to realize nuclear magnetic resonance (NMR) spectroscopy without the use of large facility scale equipment. The same magnetometric technique could also be used to search for new physics, e.g., by testing general relativity or searching for dark matter. Direct optical nuclear spin polarization (hyperpolarization) of noble gases would remove a major bottleneck for advancing pulmonary MRI and quantum magnetometry. I also explore other applications of the lasers developed in my research, such as material processing and semiconductor device fabrication, metrology and inspection, as well as creating tabletop alternatives to large, particle accelerator based ultraviolet sources such as synchrotrons and free electron lasers.
The techniques I use and develop span a wide range of disciplines, including ultrafast and nonlinear optics, laser stabilization, high power fiber lasers and amplifiers, atomic spectroscopy and coherent control.