Abstract
Summary form only given. Since the original discovery of the excitonic optical Stark effect, substantial progress has been made in the understanding of this ultrafast nonlinear optical effect. Recently, a red shift of the excitonic absorption line has been reported using low intensity excitation detuned 4.5 meV below the 1s-heavy-hole (hh) resonance and cross-circularly-polarized pulses. This was attributed to higher-order Coulomb correlations, interpretable as bound and unbound two-exciton states and memory effects. For co-circularly polarized pulses the well-known blue shift was found. Here we present a related effect occurring in the higher-intensity regime. Standard pump-probe experiments were performed on high-quality 8.5 nm-thick In0.04Ga0.96As multiple quantum well (MQW) samples.
Original language | English (US) |
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Title of host publication | Technical Digest - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, QELS 2001 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 196-197 |
Number of pages | 2 |
ISBN (Print) | 155752663X, 9781557526632 |
DOIs | |
State | Published - 2001 |
Event | Quantum Electronics and Laser Science Conference, QELS 2001 - Baltimore, United States Duration: May 6 2001 → May 11 2001 |
Other
Other | Quantum Electronics and Laser Science Conference, QELS 2001 |
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Country | United States |
City | Baltimore |
Period | 5/6/01 → 5/11/01 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Radiation