Solid-State Carrier-Envelope Offset Frequency Detection Via Quantum Interference in Semconductors

We detect the carrier-envelope offset frequency of ultrashort optical pulses using quantum interference control of injected photocurrents in low-temperature-grown gallium arsenide. With further improvements to the signal fidelity, this solid-state detection method will enable stabilization of the carrier-envelope offset frequency of femtosecond modelocked laser pulses for optical frequency metrology