Attosecond Electronics: Laser Waveform Control of Electron Dynamics in Materials
Professor Mike Chini Ohio State University
The ability to synthesize and control the electric field of light with sub-optical-cycle precision has, in the last two decades, enabled the first generation of isolated attosecond pulses and provided access to the ultrafast dynamics of electrons in gas-phase atoms and molecules. Now, the transition of few-cycle laser sources and optical metrology from the near- to the mid-infrared has ushered in a new era of attosecond electronics, in which tailored laser waveforms are used to drive nonlinear photoexcitation and control coherent electronic currents in solid materials. In this talk, I will describe the toolbox of attosecond electronics: a few-cycle laser “function generator” and “optical oscilloscope”, both operating in the mid-infrared, and highlight how they allow control over laser-driven currents in multiple conduction bands of ZnO as well as valley polarization in monolayer MoS2..