R
Ryan Balili
Researcher at University of Pittsburgh
Publications - 17
Citations - 1805
Ryan Balili is an academic researcher from University of Pittsburgh. The author has contributed to research in topics: Polariton & Photon. The author has an hindex of 13, co-authored 17 publications receiving 1606 citations. Previous affiliations of Ryan Balili include University of Cambridge.
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Journal ArticleDOI
Bose-Einstein Condensation of Microcavity Polaritons in a Trap
Ryan Balili,V. Hartwell,V. Hartwell,David W. Snoke,David W. Snoke,L. Pfeiffer,L. Pfeiffer,Kenneth D. West,Kenneth D. West +8 more
TL;DR: Polaritons are created in a harmonic potential trap analogous to atoms in optical traps and observe a number of signatures of Bose-Einstein condensation: spectral and spatial narrowing, a peak at zero momentum in the momentum distribution, first-order coherence, and spontaneous linear polarization of the light emission.
Journal ArticleDOI
Long-distance diffusion of excitons in double quantum well structures
TL;DR: Lateral diffusion measurements of excitons at low temperature in double quantum wells of various widths are reported, establishing that the transport occurs by exciton motion.
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A sub-femtojoule electrical spin-switch based on optically trapped polariton condensates
A. Dreismann,Hamid Ohadi,Yago del Valle-Inclan Redondo,Ryan Balili,Yuri G. Rubo,S. I. Tsintzos,George Deligeorgis,Zacharias Hatzopoulos,Zacharias Hatzopoulos,Pavlos G. Savvidis,Pavlos G. Savvidis,Pavlos G. Savvidis,Jeremy J. Baumberg +12 more
TL;DR: The nonlinear spin dynamics offers an alternative route to switching, allowing us to realize an electrical spin-switch exhibiting ultralow switching energies below 0.5 fJ, laying the foundation for development of devices based on the electro-optical control of coherent spin ensembles on a chip.
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Dissipationless Flow and Sharp Threshold of a Polariton Condensate with Long Lifetime
Bryan Nelsen,Gangqiang Liu,Mark Steger,David W. Snoke,Ryan Balili,Kenneth D. West,Loren Pfeiffer +6 more
TL;DR: In this article, the authors extended the lifetime of exciton polaritons from 10 to 100 picoseconds and observed a number of dramatic new effects, including a new and dynamic coherent state of spatially localized polariton at high densities.
Journal ArticleDOI
Coupled counterrotating polariton condensates in optically defined annular potentials
A. Dreismann,Peter Cristofolini,Ryan Balili,Gabriel Christmann,Florian Pinsker,Natasha G. Berloff,Zacharias Hatzopoulos,Pavlos G. Savvidis,Jeremy J. Baumberg +8 more
TL;DR: The ability to precisely control the structure of the petal condensates both by carefully modifying the excitation geometry as well as perturbing the system on ultrafast timescales to reveal unexpected superfluid dynamics is demonstrated.