Z
Zacharias Hatzopoulos
Researcher at Institution of Engineers, Sri Lanka
Publications - 141
Citations - 3036
Zacharias Hatzopoulos is an academic researcher from Institution of Engineers, Sri Lanka. The author has contributed to research in topics: Polariton & Exciton. The author has an hindex of 26, co-authored 140 publications receiving 2624 citations. Previous affiliations of Zacharias Hatzopoulos include Foundation for Research & Technology – Hellas & University of Crete.
Papers
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Journal ArticleDOI
A GaAs polariton light-emitting diode operating near room temperature
S. I. Tsintzos,N. T. Pelekanos,George Konstantinidis,Zacharias Hatzopoulos,Zacharias Hatzopoulos,Pavlos G. Savvidis +5 more
TL;DR: Experimental realization of an electrically pumped semiconductor polariton light-emitting device, which emits directly from polariton states at a temperature of 235 K, represents a substantial step towards the realization of ultra-efficient polaritonic devices with unprecedented characteristics.
Journal ArticleDOI
Sculpting oscillators with light within a nonlinear quantum fluid
Guilherme Tosi,Gabriel Christmann,Natalia G. Berloff,P. Tsotsis,Tingge Gao,Tingge Gao,Zacharias Hatzopoulos,Zacharias Hatzopoulos,Pavlos G. Savvidis,Pavlos G. Savvidis,Jeremy J. Baumberg +10 more
TL;DR: In this article, the polaritons of a photon and an exciton strongly coupled together were imaged directly and used to aid the development of semiconductor-based polariton-condensate devices.
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Polariton condensate transistor switch
Tingge Gao,Tingge Gao,P. S. Eldridge,Timothy Chi Hin Liew,S. I. Tsintzos,S. I. Tsintzos,G. Stavrinidis,George Deligeorgis,Zacharias Hatzopoulos,Zacharias Hatzopoulos,Pavlos G. Savvidis,Pavlos G. Savvidis +11 more
TL;DR: The low-loss photonlike propagation combined with strong nonlinearities associated with their excitonic component makes polariton-based transistors particularly attractive for the implementation of all-optical integrated circuits.
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Optical Superfluid Phase Transitions and Trapping of Polariton Condensates
Peter Cristofolini,A. Dreismann,Gabriel Christmann,Guido Franchetti,Natalia G. Berloff,Natalia G. Berloff,P. Tsotsis,Zacharias Hatzopoulos,Zacharias Hatzopoulos,Pavlos G. Savvidis,Pavlos G. Savvidis,Jeremy J. Baumberg +11 more
TL;DR: This work directly image persistently circulating superfluid and shows how flows of light-matter quasiparticles are dominated by the quantum pressure in such configurable laser-written potential landscapes.
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Polariton condensation in an optically induced two-dimensional potential
Alexis Askitopoulos,Hamid Ohadi,Alexey Kavokin,Alexey Kavokin,Zacharias Hatzopoulos,Zacharias Hatzopoulos,Pavlos G. Savvidis,Pavlos G. Savvidis,Pavlos G. Lagoudakis +8 more
TL;DR: In this paper, the nonresonant pump profile is shaped into a ring and projected to a high quality factor microcavity where it forms a two-dimensional repulsive optical potential originating from the interactions of polaritons with the excitonic reservoir.