 His research focus is on using ultrafast optical techniques to manipulate electron spins embedded in semiconductor quantum dots to create quantum coherence as a new degree of freedom.Some of his publications describe the first demonstration of an optically driven CNOT gate in a solid state device and demonstration of entanglement in semiconductor system.In addition to semiconductor physics, he is also involved in the development and application of advanced laser spectroscopy methodology and other biophysical techniques for the study of protein folding and dynamics.