Nonlinear frequency conversion and electro-optic sampling allow for the generation and phase-resolved characterization of few-cycle pulses in the frequency range up to 50 THz. Electric field transients with amplitudes of up to several MV/cm are applied to study coherent nonlinear excitations of low-dimensional semiconductors. We report the first observation of Rabi oscillations on intersubband transitions of electrons in GaAs/AlGaAs quantum wells. Frequency and phase of such oscillations are controlled in the 0.3- to 2.5-THz range via the strength and shape of the mid-infrared driving pulse.
|Number of pages||6|
|Journal||Applied Physics A: Materials Science and Processing|
|State||Published - 14 Jan 2004|
- Frequency Conversion
- Nonlinear Frequency
- Rabi Oscillation
- Semiconductor Nanostructures