Carrier-envelope phase-controlled quantum interference of injected photocurrents in semiconductors

Phys Rev Lett. 2004 Apr 9;92(14):147403. doi: 10.1103/PhysRevLett.92.147403. Epub 2004 Apr 8.

Abstract

We demonstrate quantum interference control of injected photocurrents in a semiconductor using the phase stabilized pulse train from a mode-locked Ti:sapphire laser. Measurement of the comb offset frequency via this technique results in a signal-to-noise ratio of 40 dB (10 Hz resolution bandwidth), enabling solid-state detection of carrier-envelope phase shifts of a Ti:sapphire oscillator.