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Profile Details
Subject Matter Expertise
Services
Writing
Copywriting,
Newswriting,
General Proofreading & Editing
Research
Market Research,
Feasibility Study,
Technology Scouting,
Fact Checking
Data & AI
Image Analysis,
Algorithm Design-Non ML
Product Development
Product Evaluation
Work Experience
Group Leader
Ubitech (Greece)
September 2020 - Present 
Senior Research Scientist
Skolkovo Institute of Science and Technology
February 2018 - December 2020
Research Fellow
University of Southampton
September 2015 - February 2018
Postgraduate Researcher
University of Southampton
October 2013 - October 2015
Marie Curie postgraduate Researcher
University of Southampton
October 2010 - October 2013
Visiting Researcher
University of Cambridge
June 2010 - September 2010
Postgraduate Researcher
Foundation for Research and Technology Hellas
September 2009 - June 2010
Education
PhD (School of Physics and Astronomy)
University of Southampton
- October 2015
MSc in Micro-Optoelectronics (Department of Physics)
University of Crete
- September 2010
BSc (Department of Physics)
University of Crete
- September 2007
Certifications
- Certification details not provided.
Publications
JOURNAL ARTICLE
Persistent Self-Induced Larmor Precession Evidenced through Periodic Revivals of Coherence <head>
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</head> . Physical Review Letters.
Jingyan Feng, Ebubechukwu O. Ilo-Okeke, Alexey N. Pyrkov, Alexis Askitopoulos, Tim Byrnes(2021). Sensitive detection of entanglement in exciton-polariton condensates via spin squeezing . Physical Review A. 104. (1). American Physical Society ({APS})
E. D. Cherotchenko, H. Sigurdsson, A. Askitopoulos, A. V. Nalitov (2021). Optically controlled polariton condensate molecules . Physical Review B.
I. Gnusov, H. Sigurdsson, S. Baryshev, T. Ermatov, A. Askitopoulos, P. G. Lagoudakis (2020). Optical orientation, polarization pinning, and depolarization dynamics in optically confined polariton condensates . Physical Review B.
S. Alyatkin, J. D. Töpfer, A. Askitopoulos, H. Sigurdsson, P. G. Lagoudakis (2020). Optical Control of Couplings in Polariton Condensate Lattices . Physical Review Letters.
Rahul Jayaprakash, Kyriacos Georgiou, Harriet Coulthard, Alexis Askitopoulos, Sai K. Rajendran, David M. Coles, Andrew J. Musser, Jenny Clark, Ifor D. W. Samuel, Graham A. Turnbull, et al. (2019). A hybrid organic–inorganic polariton LED . Light: Science & Applications.
Jayaprakash, R., Georgiou, K., Coulthard, H., Askitopoulos, A., Rajendran, S.K., Coles, D.M., Musser, A.J., Clark, J., Samuel, I.D.W., Turnbull, G.A., et al.(2019). A hybrid organic–inorganic polariton LED . Light: Science and Applications. 8. (1).
Georgiou, K., Jayaprakash, R., Askitopoulos, A., Coles, D.M., Lagoudakis, P.G., Lidzey, D.G.(2018). Generation of Anti-Stokes Fluorescence in a Strongly Coupled Organic Semiconductor Microcavity . ACS Photonics. 5. (11). p. 4343-4351.
Pickup, L., Kalinin, K., Askitopoulos, A., Hatzopoulos, Z., Savvidis, P.G., Berloff, N.G., Lagoudakis, P.G.(2018). Optical Bistability under Nonresonant Excitation in Spinor Polariton Condensates . Physical Review Letters. 120. (22).
Askitopoulos, A., Nalitov, A.V., Sedov, E.S., Pickup, L., Cherotchenko, E.D., Hatzopoulos, Z., Savvidis, P.G., Kavokin, A.V., Lagoudakis, P.G.(2018). All-optical quantum fluid spin beam splitter . Physical Review B. 97. (23).
Berloff, N.G., Silva, M., Kalinin, K., Askitopoulos, A., Töpfer, J.D., Cilibrizzi, P., Langbein, W., Lagoudakis, P.G.(2017). Realizing the classical XY Hamiltonian in polariton simulators . Nature Materials. 16. (11). p. 1120-1126.
Cilibrizzi, P., Sigurdsson, H., Liew, T.C.H., Ohadi, H., Askitopoulos, A., Brodbeck, S., Schneider, C., Shelykh, I.A., Höfling, S., Ruostekoski, J., et al.(2016). Half-skyrmion spin textures in polariton microcavities . Physical Review B. 94. (4).
Askitopoulos, A., Kalinin, K., Liew, T.C.H., Cilibrizzi, P., Hatzopoulos, Z., Savvidis, P.G., Berloff, N.G., Lagoudakis, P.G.(2016). Nonresonant optical control of a spinor polariton condensate . Physical Review B. 93. (20).
Kochereshko, V.P., Durnev, M.V., Besombes, L., Mariette, H., Sapega, V.F., Askitopoulos, A., Savenko, I.G., Liew, T.C.H., Shelykh, I.A., Platonov, A.V., et al.(2016). Lasing in Bose-Fermi mixtures . Scientific Reports. 6.
Cilibrizzi, P., Ohadi, H., Ostatnicky, T., Askitopoulos, A., Langbein, W., Lagoudakis, P.(2015). Cilibrizzi et al. Reply . Physical Review Letters. 115. (8).
Cilibrizzi, P., Sigurdsson, H., Liew, T.C.H., Ohadi, H., Wilkinson, S., Askitopoulos, A., Shelykh, I.A., Lagoudakis, P.G.(2015). Polariton spin whirls . Physical Review B - Condensed Matter and Materials Physics. 92. (15).
Askitopoulos, A., Liew, T.C.H., Ohadi, H., Hatzopoulos, Z., Savvidis, P.G., Lagoudakis, P.G.(2015). Robust platform for engineering pure-quantum-state transitions in polariton condensates . Physical Review B - Condensed Matter and Materials Physics. 92. (3).
Cilibrizzi, P., Ohadi, H., Ostatnicky, T., Askitopoulos, A., Langbein, W., Lagoudakis, P.(2014). Linear wave dynamics explains observations attributed to dark solitons in a polariton quantum fluid . Physical Review Letters. 113. (10).
Cilibrizzi, P., Askitopoulos, A., Silva, M., Bastiman, F., Clarke, E., Zajac, J.M., Langbein, W., Lagoudakis, P.G.(2014). Polariton condensation in a strain-compensated planar microcavity with InGaAs quantum wells . Applied Physics Letters. 105. (19).
Askitopoulos, A., Ohadi, H., Kavokin, A.V., Hatzopoulos, Z., Savvidis, P.G., Lagoudakis, P.G.(2013). Polariton condensation in an optically induced two-dimensional potential . Physical Review B - Condensed Matter and Materials Physics. 88. (4).
Askitopoulos, A., Mouchliadis, L., Iorsh, I., Christmann, G., Baumberg, J.J., Kaliteevski, M.A., Hatzopoulos, Z., Savvidis, P.G.(2011). Bragg polaritons: Strong coupling and amplification in an unfolded microcavity . Physical Review Letters. 106. (7).
Christmann, G., Askitopoulos, A., Deligeorgis, G., Hatzopoulos, Z., Tsintzos, S.I., Savvidis, P.G., Baumberg, J.J.(2011). Oriented polaritons in strongly-coupled asymmetric double quantum well microcavities . Applied Physics Letters. 98. (8).
PREPRINT
(2020). Engineering photon statistics in a spinor polariton condensate.
(2020). Interaction induced point scatterer lattices and flat band condensation of exciton-polaritons.
CONFERENCE PAPER
Alyatkin, S., Töpfer, J., Askitopoulos, A., Sigurðsson, H., Langbein, W., Lagoudakis, P.(2019). Optical control of coupling in phase-locked polariton dyads . Optics InfoBase Conference Papers. Part F143-EQEC 2019.
Alyatkin, S., Töpfer, J., Askitopoulos, A., Sigurosson, H., Langbein, W., Lagoudakis, P.(2019). Optical control of coupling in phase-locked polariton dyads . 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019.
Silva, M., Kalinin, K., To¨pfer, J.D., Cilibrizzi, P., Askitopoulos, A., Langbein, W., Berloff, N.G., Lagoudakis, P.G.(2017). Measure the Heisenberg interaction in a polariton dyad . Optics InfoBase Conference Papers. Part F81-EQEC 2017.
Cilibrizzi, P., Ohadi, H., Ostatnicky, T., Askitopoulos, A., Langbein, W., Lagoudakis, P.G.(2014). A study of the formation of dark-solitons in semiconductor microcavities . Conference on Lasers and Electro-Optics Europe - Technical Digest. 2014-January.
Cilibrizzi, P., Ohadi, H., Ostatnicky, T., Askitopoulos, A., Langbein, W., Lagoudakis, P.G.(2014). A study of the formation of dark-solitons in semiconductor microcavities . Conference on Lasers and Electro-Optics Europe - Technical Digest. 2014-January.
Cilibrizzi, P., OhadiH., Ostatnicky, T., Askitopoulos, A., Langbein, W., Lagoudakis, P.G.(2014). A study of the formation of dark-solitons in semiconductor microcavities . Optics InfoBase Conference Papers.
Askitopoulos, A., Liew, T.C.H., Ohadi, H., Hatzopoulos, Z., Savvidis, P.G., Lagoudakis, P.G.(2014). Optical manipulation of mesoscopic light-matter coherent wavefunctions in a planar microcavity . Optics InfoBase Conference Papers.
Askitopoulos, A., Ohadi, H., Liew, T.C.H., Hatzopoulos, Z., Savvidis, P.G., Kavokin, A.V., Lagoudakis, P.G.(2014). Ultra-fast spinor switching in polariton condensates . Optics InfoBase Conference Papers.
Askitopoulos, A., Ohadi, H., Liew, T.C.H., Hatzopoulos, Z., Savvidis, P.G., Kavokin, A.V., Lagoudakis, P.G.(2014). Ultra-fast spinor switching in polariton condensates . Optics InfoBase Conference Papers.
Cilibrizzi, P., OhadiH., Ostatnicky, T., Askitopoulos, A., Langbein, W., Lagoudakis, P.G.(2014). A study of the formation of dark-solitons in semiconductor microcavities . Optics InfoBase Conference Papers.
Askitopoulos, A., Ohadi, H., Liew, T.C.H., Hatzopoulos, Z., Savvidis, P.G., Kavokin, A.V., Lagoudakis, P.G.(2014). Ultra-fast spinor switching in polariton condensates . Conference on Lasers and Electro-Optics Europe - Technical Digest. 2014-January.
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