Phys.org June 17, 2022 An international team of researchers (USA – UC Berkeley, University of Nebraska, Argonne National Laboratory, Canada) has found a way to combine the advantages of light and matter at room temperature suitable for finding the global minimum of mathematical formulations at room temperature. They used solution-grown halide perovskite grown under nanoconfinement. This produced exceptional smooth single-crystalline large crystals with great optical homogeneity. Its material properties could enable future studies at room temperature rather than ultracold temperatures. They showed that XY spin lattice with many coherently coupled condensates that can be constructed as a lattice with a […]
Tag Archives: Poloritons
Photon-phonon breakthrough
Science Daily October 8, 2021 By combining the strong coupling between topological photons with phonons in hexagonal boron nitride (hBN), researchers at the City College of New York demonstrated a platform to control and guide hybrid states of light and lattice vibrations. The observed topological edge states of phonon-polaritons are found to carry nonzero angular momentum locked to their propagation direction, which enables their robust transport. Thus, these topological quasiparticles enable the funneling of infrared phonons mediated by helical infrared photons along arbitrary pathways and across sharp bends. This opens opportunities for applications ranging from Raman and vibrational spectroscopy with […]
No losses: Scientists stuff graphene with light
EurekAlert November 16, 2020 Researchers in Russia developed a technique to achieve 90% energy conversion from the pump laser field to the surface plasmon polaritons (SPPs) on the base of the hybrid optoplasmonic multi‐level scheme of near‐resonant interaction with semiconductor quantum dots (QDs) placed in the proximity of a graphene surface. Using numerical simulations and semiclassical approach for the light–matter interaction they found that maximum efficiency of SPP generation is achieved in strong coupling conditions for a stationary regime of SPP‐QD interaction. The technique can be used for converting energy in solar cells, and nano and bio-object detection…read more. TECHNICAL […]
For The First Time, Scientists Achieve ‘Liquid Light’ at Room Temperature
Science Alert July 7, 2018 An international team of researchers (Italy, Canada, Finland, UK) sandwiched a 130-nanometre-thick layer of organic molecules between two ultra-reflective mirrors and blasted it with a 35 femtosecond laser pulse to combine the properties of photons – such as their light effective mass and fast velocity – with strong interactions due to the electrons within the molecules. The flow of polaritons is not disturbed like waves under regular circumstances. According to the researchers, the findings pave the way not only to new studies of quantum hydrodynamics, but also to room-temperature polariton devices for advanced future technology, […]