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Assistant Professor, Department of Electrical and Computer Engineering, Cockrell School of Engineering
+1 512 471 4424
Expertise: Terahertz and mid-infrared quantum cascade lasers, including devices with giant optical nonlinearities; mid-infrared and terahertz photonic components and systems for chemical sensing and microscopy; optical metamaterials in mid-infrared and terahertz spectral ranges;
Research Professor, Department of Chemical Engineering, Cockrell School of Engineering
+1 512 471 8874, +1 512 471 8795
Expertise: Dr. Heller's study of the physical chemistry of inorganic oxyhalide solutions resulted in the first neodymium liquid lasers (1964-1967) and in the lithium thionyl chloride battery (1973), one of the earliest lithium batteries, remaining in use in medical and defense systems where 20 year shelf life, high energy density and a broad operating temperature range are required. His studies of photoelectrochemical solar cells resulted in 11.5 percent efficient solar cells (1980) and in 11 percent efficient hydrogen evolving photoelectrodes. His related studies of photoelectrocatalysis established that the rate of photo-assisted oxidation of organic matter on photocatalytic titanium dioxide particles was controlled by the rate of reduction of adsorbed oxygen by trapped electrons. He established the field the electrical wiring of enzymes (1988-2005), the electrical connection of their catalytic redox centers to electrodes, and built with wired enzymes the subcutaneously implanted miniature glucose sensors. His wired enzymes became the core technology of the FreeStyle NavigatorTM system of Abbott Diabetes Care; it continuously and accurately monitors subcutaneous glucose levels in diabetic people.
Professor and Temple Foundation Endowed Professorship No. 3, Department of Electrical and Computer Engineering, Cockrell School of Engineering
+1 512 471 4984, +1 512 471 6964
Expertise: Tissue fusion and ablation processes with radio frequency current and lasers; Applications of the complex electrical properties of and admittance measurements in tissues; Industrial applications of radio frequency and microwave energy