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Quantum Optical Binding of Nanoscale Particles.
Phys Rev Lett
December 2024
Ulm University, Institute for Complex Quantum Systems and Center for Integrated Quantum Science and Technology, Albert-Einstein-Allee 11, 89069 Ulm, Germany.
Article Synopsis
- Optical binding is the interaction between objects affected by laser light, useful for controlling tiny mechanical movements.
- The study explores the quantum aspects of optical binding and how these effects can be detected in upcoming experiments with levitated nanoparticles.
- The research also highlights limitations in achieving entanglement through optical binding in free space and suggests methods to overcome these challenges.
Tunable on-chip optical traps for levitating particles based on single-layer metasurface.
Nanophotonics
July 2024
University of Southampton, Southampton, UK.
Optically levitated multiple nanoparticles have emerged as a platform for studying complex fundamental physics such as non-equilibrium phenomena, quantum entanglement, and light-matter interaction, which could be applied for sensing weak forces and torques with high sensitivity and accuracy. An optical trapping landscape of increased complexity is needed to engineer the interaction between levitated particles beyond the single harmonic trap. However, existing platforms based on spatial light modulators for studying interactions between levitated particles suffered from low efficiency, instability at focal points, the complexity of optical systems, and the scalability for sensing applications.
View Article and Find Full Text PDFSupra-particle formation by evaporation of aerosol droplets containing binary mixtures of colloidal particles: Controlling the final morphology.
J Colloid Interface Sci
March 2025
School of Chemistry, University of Bristol, Bristol BS8 1TS, UK. Electronic address:
Hypothesis: Supra-particle formation by evaporation of an aqueous aerosol droplet containing nano-colloidal particles is challenging to investigate but has significant applications. We hypothesise that the Peclet number, Pe, which compares the effectiveness of evaporation-induced advection to that of colloidal diffusion, is critical in determining supra-particle morphology and can be used to predict the dried morphology for droplet containing polydisperse nanoparticles.
Experiments: Sterically-stabilized diblock copolymer nanoparticles were prepared via polymerization-induced self-assembly (PISA).
Non-Hermitian dynamics and non-reciprocity of optically coupled nanoparticles.
Nat Phys
July 2024
Vienna Center for Quantum Science and Technology, Faculty of Physics, University of Vienna, Vienna, Austria.
Non-Hermitian dynamics, as observed in photonic, atomic, electrical and optomechanical platforms, holds great potential for sensing applications and signal processing. Recently, fully tuneable non-reciprocal optical interaction has been demonstrated between levitated nanoparticles. Here we use this tunability to investigate the collective non-Hermitian dynamics of two non-reciprocally and nonlinearly interacting nanoparticles.
View Article and Find Full Text PDFUnraveling the Nanosheet Zeolite-Catalyzed Combustion of Aluminum Nanoparticles-Doped exo-Tetrahydrodicyclopentadiene (JP-10) Energetic Fuel.
ACS Appl Mater Interfaces
October 2024
Department of Chemistry, University of Hawai'i at Manoa, Honolulu, Hawaii 96822, United States.
Article Synopsis
- * Five types of these zeolites, labeled NSMFI(y) based on their Si/Al ratios, were created with controlled acidity and tested in combustion experiments involving aluminum nanoparticles and a specific fuel.
- * The addition of NSMFI(y) improved ignition delays and burning times significantly, with the variant NSMFI(60) showing the highest combustion efficiency at 80%. This research is aimed at advancing the development of sustainable fuel technologies.
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