1. 18 Jun 2025 Journal Article The Journal of Physical Chemistry Letters

    Controlling Intramolecular Vibrational Redistribution with an Infrared Photonic Cavity

    Bar Cohn, Artem Sribnyi, Sithara U Nawagamuwage, Junhan Zhou, Muhammad Shakeel, Igor V Rubtsov, Lev Chuntonov
    Abstract

    Using ultrafast dual-frequency two-dimensional infrared spectroscopy (DF-2DIR), we probed how the strong coupling of high-frequency molecular vibrations to surface lattice resonances of infrared antennas, which act as a photonic cavity, affects intramolecular vibrational relaxation (IVR). DF-2DIR allows one to probe the IVR pathways beyond the vibrational state subspace

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  2. 16 Jun 2025 Journal Article Advanced Intelligent Systems

    Ultrathin (<10 nm) Electrochemical Random-Access Memory that Overcomes the Tradeoff between Robust Weight Update and Speed in Neuromorphic Systems

    Seonuk Jeon, Seokjae Lim, Nir Tessler, Jiyong Woo
    Abstract

    Electrochemical random-access memory (ECRAM) devices are a promising candidate for neuromorphic computing, as they mimic synaptic functions by modulating conductance through ion migration. However, the use of a thick electrolyte layer (>40 nm) in conventional ECRAMs leads to an unavoidable tradeoff between synaptic weight updates and operating speed. To address this

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  3. 20 May 2025 Journal Article ACS Applied Optical Materials

    Exciton Manipulation via Dielectric Environment Engineering in 2D Semiconductors

    Raziel Itzhak, Nathan Suleymanov, Boris Minkovich, Liana Kartvelishvili, Vladislav Kostianovskii, Roman Korobko, Alex Hayat, Ilya Goykhman
    Abstract

    Two-dimensional (2D) semiconductors are promising for photonic applications due to their exceptional optoelectronic properties, including large exciton binding energy, strong spin–orbit coupling, and potential integration with the standard complementary silicon-oxide-semiconductor (CMOS) technology. The dielectric environment can significantly affect the photoluminescence

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  4. 18 May 2025 Conference Paper 2025 IEEE International Memory Workshop (IMW)

    Novel Ultrafast Non-Destructive Readout of FeRAM by Low-Voltage Transient Current

    Mor M Dahan, Emanuel Ber, Florian Wunderwald, Gilad Zilberman, Guy Orlev, Yair Keller, Einav Raveh, Ruben Alcala, Thomas Mikolajick, Uwe Schroeder, Eilam Yalon
    Abstract

    Conventional FeRAM readout methods are destructive, requiring polarization switching of the FE capacitor (FeCAP) and write-back, which reduces endurance, increases latency, and energy consumption. Prior works on non-destructive readout (NDRO) relied on capacitance memory window (MW), which is slow and requires asymmetric FeCAP structure, compromising retention and

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  5. 3 May 2025 Journal Article Npj 2D Materials and Applications

    Andreev pair injection into a transition metal dichalcogenide monolayer

    Abstract

    We demonstrate Andreev pair injection across Nb-WS2 junction evident as Andreev reflection in differential conductivity spectra below Nb critical temperature \({T}_{c}\). The superconducting- 2D semiconducting junction defined by a focused ion beam, shaped Nb pads, and semi-dry transfer of single layer CVD-grown WS2 crystals ensured the mechanical integrity of the 2D

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  6. 29 Apr 2025 Preprint arXiv

    Tracking the Evolution of Near-Field Photonic Qubits into High-Dimensional Qudits via State Tomography

    Abstract

    Quantum nanophotonics offers essential tools and technologies for controlling quantum states, while maintaining a miniature form factor and high scalability. For example, nanophotonic platforms can transfer information from the traditional degrees of freedom (DoFs), such as spin angular momentum (SAM) and orbital angular momentum (OAM), to the DoFs of the nanophotonic

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  7. 1 Apr 2025 Journal Article Advanced Functional Materials

    Transient Current Responses of Organic Electrochemical Transistors: Evaluating Ion Diffusion, Chemical Capacitance, and Series Elements

    Juan Bisquert, Nir Tessler
    Abstract

    For the successful implementation of organic electrochemical transistors in neuromorphic computing, bioelectronics, and real-time sensing applications it is essential to understand the factors that influence device switching times. This work describes a physical-electrochemical model of the transient response to a step of the gate voltage. The model incorporates 1) ion

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  8. Mar 2025 Journal Article Advanced Electronic Materials

    Magneto-Capacitance of PEDOT:PSS Thin Films; Effects of a Two-Phase System and Coulomb Interaction

    Daniel Nikiforov, Nir Tessler, Eitan Ehrenfreund
    Abstract

    The study of the net magneto-capacitance, C(B), in thin films of the conducting polymer Poly(3 4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is presented. In the films there are charged electrically-conducting PEDOT-rich regions surrounded by PSS insulating charged material. The high-conductivity grade PEDOT:PSS thin films are studied at low temperature

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  9. 19 Feb 2025 Journal Article Nano Letters

    Heterostructure Nanoscintillator for Matching Radiation Absorbing Layers with Fast Light-Emitting Layers

    Abstract

    Fast-emitting scintillators are essential for advanced diagnostic techniques, yet many suffer from low radiation attenuation. This trade-off is particularly pronounced in polymer scintillators, which, despite their fast emission, exhibit low density and low atomic numbers, limiting the radiation attenuation factor, resulting in low detection efficiency. Here, we overcome

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  10. 7 Feb 2025 Journal Article Science

    Four-dimensional conserved topological charge vectors in plasmonic quasicrystals

    Shai Tsesses, Pascal Dreher, David Janoschka, Alexander Neuhaus, Kobi Cohen, Tim C Meiler, Tomer Bucher, Shay Sapir, Bettina Frank, Timothy J Davis, Frank-J Meyer zu Heringdorf, Harald Giessen, ... show all 13 authors
    Abstract

    According to Noether’s theorem, symmetries in a physical system are intertwined with conserved quantities. These symmetries often determine the system topology, which is made ever more complex with increased dimensionality. Quasicrystals have neither translational nor global rotational symmetry, yet they intrinsically inhabit a higher-dimensional space in which symmetry

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