Generation of Quantized Polaritons below the Condensation Threshold.
Accepted version
Peer-reviewed
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Repository DOI
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Authors
Cristofolini, Peter
Hatzopoulos, Z
Savvidis, Pavlos G
Baumberg, Jeremy J
Abstract
Exciton polaritons in high quality semiconductor microcavities can travel long macroscopic distances (>100 μm) due to their ultralight effective mass. The polaritons are repelled from optically pumped exciton reservoirs where they are formed; however, their spatial dynamics is not as expected for pointlike particles. Instead we show polaritons emitted into waveguides travel orthogonally to the repulsive potential gradient and can only be explained if they are emitted as macroscopic delocalized quantum particles, even before they form Bose condensates.
Description
Keywords
0912 Materials Engineering
Journal Title
Phys Rev Lett
Conference Name
Journal ISSN
0031-9007
1079-7114
1079-7114
Volume Title
121
Publisher
American Physical Society (APS)
Publisher DOI
Sponsorship
Engineering and Physical Sciences Research Council (EP/G060649/1)
Engineering and Physical Sciences Research Council (EP/L027151/1)
European Research Council (320503)
Engineering and Physical Sciences Research Council (EP/L027151/1)
European Research Council (320503)