Abstract
We report on free excitons coexisting with exciton magnetic polarons (EMPs) in bulk semimagnetic semiconductors of Cd1-xMnxTe for 0.04 ≤ x ≤ 0.36 at 2 K under nonresonant two-photon excitation. This two-photon excitation not only generates free excitons but also more efficiently creates EMPs compared with ordinary one-photon excitation. Stimulated emission from free excitons is demonstrated under strong two-photon excitation.
Original language | English (US) |
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Pages (from-to) | 5722-5724 |
Number of pages | 3 |
Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
Volume | 372 |
Issue number | 35 |
DOIs | |
State | Published - Aug 25 2008 |
Keywords
- CdMnTe
- Free excitons
- Magnetic polarons
- Stimulated emission
- Two-photon excitation
ASJC Scopus subject areas
- Physics and Astronomy(all)