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HL: Halbleiterphysik

HL 63: Ultrakurzzeitph
änomene

HL 63.4: Vortrag

Mittwoch, 9. März 2005, 11:30–11:45, TU P-N201

Ultrafast phase-resolved spectroscopy on semiconductor multiple-quantum-well Bragg structures in different light-matter interaction regimes — •Tilman Höner zu Siederdissen¹, Nils C. Nielsen¹, Jürgen Kuhl¹, and Harald Giessen² — ¹Max-Planck-Institut für Festkörperforschung, 70569 Stuttgart — ²Institut für Angewandte Physik, Uni Bonn, 53115 Bonn

We present phase-resolved pulse propagation measurements on semiconductor multiple-quantum-well Bragg structures allowing us to study the transition between different light-matter interaction regimes. Our experiments cover the range from linear excitation to the breakdown of the photonic band gap, on to self-induced transmission and self-phase modulation. The complete knowledge of the output pulse properties including the phase characteristics is used to clearly identify the involved linear and nonlinear effects. An improved fast scanning cross-correlation frequency-resolved optical gating (XFROG) setup is applied to retrieve the pulse phase with an excellent signal to noise ratio.