Polariton-Enhanced Exciton Transport
| Autor: | David W. Snoke, Shouvik Mukherjee, D. M. Myers, Mark Steger, Loren Pfeiffer, Kenneth D. West, Jonathan Beaumariage |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases education.field_of_study Condensed matter physics Condensed Matter::Other Exciton Population Physics::Optics FOS: Physical sciences 02 engineering and technology Total population Approx 021001 nanoscience & nanotechnology 01 natural sciences Character (mathematics) Planar Quantum Gases (cond-mat.quant-gas) 0103 physical sciences Polariton 010306 general physics 0210 nano-technology education Condensed Matter - Quantum Gases Excitation |
| DOI: | 10.48550/arxiv.1807.11905 |
| Popis: | The transport distance of excitons in exciton-polariton systems has previously been assumed to be very small ($\lesssim 1~\mu$m). The sharp spatial profiles observed when generating polaritons by non-resonant optical excitation show that this assumption is generally true. In this paper, however, we show that the transport distances of excitons in two-dimensional planar cavity structures with even a slightly polaritonic character are much longer than expected ($\approx 20~\mu$m). Although this population of slightly polaritonic excitons is normally small compared to the total population of excitons, they can substantially outnumber the population of the polaritons at lower energies, leading to important implications for the tailoring of potential landscapes and the measurement of interactions between polaritons. Comment: 11 pages, 11 figures |
| Databáze: | OpenAIRE |
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