Figure 1

Measurement of field-induced QUIC. (a) Schematic of the experimental apparatus, including the two-color interferometer and the radio frequency biasing scheme. OPO: optical parametric oscillator; BBO: $\beta$-barium borate crystal; BP: band pass filter; DDS: direct digital synthesis board. (b) The modulation of the transmitted probe power at the dither frequency as the phase parameter ${\varphi }_{21}={\varphi }_{2\omega }-2{\varphi }_{\omega }$ is swept by the slow ramp piezo. The measured signal for ${\mathbf{E}}_{\mathrm{dc}}\parallel ⟨001⟩$ is shown for a positive bias (solid black), negative bias (dashed red), and zero bias (blue dotted). (c) The amplitude of the differential transmission signal is shown as a function of the bias voltage for ${\mathbf{E}}_{\mathrm{dc}}\parallel ⟨001⟩$ (blue dots) and ${\mathbf{E}}_{\mathrm{dc}}\parallel ⟨011⟩$ (red squares). The lines are linear fits to the data points.Reuse & Permissions

Figure 2

Calculation of field-induced $1+2$ quantum interference control of carrier injection in GaAs in the parabolic band approximation, with no lifetime broadening (solid line) and in the limit of large broadening (dashed line). The optical fields are linearly polarized parallel to the constant field $E_{\mathrm{dc}}=20\mathrm{kV}/\mathrm{cm}$.Reuse & Permissions