Various areas of our ongoing condensed matter physics research which involve both fundamental physics and advanced technology are described. The research topics include studies of the vortex dynamics and pairing symmetry of high-temperature superconductors; development of precision clocks using high-Q superconducting microwave cavities; state-of-the-art measurements of the density and critical phenomena of liquid helium near phase transitions and under microgravity; as well as the physics and device applications of various magnetoresistive perovskites. The experimental scope encompasses techniques from atomic imaging to space research, and the important interplay of fundamental science and frontier technology in our research is also addressed
