期刊
PHYSICAL REVIEW APPLIED
卷 4, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.4.034008
关键词
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资金
- National Science Foundation [DMR-09055944]
- Cowen endowment at Michigan State University
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0955944] Funding Source: National Science Foundation
We report highly linearly polarized remote luminescence that emerges at the cleaved edges of nanoscale gallium selenide slabs tens of micrometers away from the optical excitation spot. The remote-edge luminescence (REL) measured in the reflection geometry has a degree of linear polarization above 0.90, with polarization orientation pointing toward the photoexcitation spot. The REL is dominated by an index-guided optical mode that is linearly polarized along the crystalline c axis. This luminescence is from out-of-plane dipoles that are converted from in-plane dipoles through a spin-flip process at the excitation spot.
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