Author: Sarah Ross

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Zhiliang PanVanderbilt University – Nashville, Tennessee, USA_______________________________________ Polymer composites of low-cost and good processability are widely employed in electronic packaging. However, the continuously increasing power consumption of modern electronics demands polymer composites of higher and higher thermal conductivity for more efficient heat dissipation. Towards this goal, researchers have explored various high thermal conductivity fillers to…

Investigation of dynamic nuclear polarization with boron vacancy defects in hexagonal boron nitride

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Kento SasakiThe University of Tokyo – Tokyo Japan_______________________________________ Boron vacancy defects (VB) in hexagonal boron nitride (hBN) are luminescent defects exhibit optically detected magnetic resonance (ODMR) at room temperature and are being researched for use in quantum technologies. The electron spins of VB interacting with the nuclear spins of nitrogen and boron allow their dynamic…

Imaging Monolayers of Hexagonal Boron Nitride with Sum-Frequency Spectro-Microscopy

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Niclas MuellerFritz-Haber-Institute of the Max-Planck-Society – Berlin, Germany_______________________________________ Nonlinear optical spectroscopy and microscopy are powerful tools to characterize interfaces and lower-dimensional materials [1,2]. Here we introduce infrared + visible sumfrequency generation (SFG) imaging of hexagonal boron nitride (hBN) monolayers within a wide-field optical microscope. The technique enables us to image the topography and crystal orientation…

Coherent control of single nuclear spins in hexagonal boron nitride

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Tongcang LiPurdue University – West Lafayette, Indiana, USA_______________________________________ Optically active spin defects in hexagonal boron nitride (hBN), a two-dimensional van der Waals material, provide exciting opportunities for quantum information science and technology. Nuclear spins, with their significantly longer coherence times compared to electron spins, are also important quantum resources. In our earlier work, we demonstrated…

Controlling Near- and Far-field Thermal Radiation with hBN Nanophotonics

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Bo ZhaoUniversity of Houston – Houston, Texas, USA_______________________________________ Originated from random fluctuations, thermal radiation is typically incoherent, and its intensity is subject to the blackbody limit. Improving the coherence and intensity of thermal radiation is of great importance to photon-mediated energy and thermal systems. As a photonic material with hyperbolic isofrequency surfaces, hBN allows for…

Determining the optical and polaritonic properties of isotopically pure hBN using cryogenic FTIR micro-spectroscopy

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Thomas FollandUniversity of Iowa – Iowa City, Iowa, USA_______________________________________ Isotopically enriched hBN has been shown to have record-breaking propagation lengths for hyperbolic phonon polaritons (HPhPs), owing to the reduced scattering in isotopically pure materials. The hyperbolic properties of hBN have been pegged to have be transformative for applications in sensing, radiative heat transfer, and infrared…

Vertical tunneling device with carbon doped hexagonal boron nitride

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YoungJae KimKyung Hee University – Seoul, Republic of Korea_______________________________________ Nowadays, the utilization of electronic devices is increasing, various of power electronic devices are being used from low-voltage AC-DC converters used for mobile phone chargers to high-voltage converters employed in power transmission. Silicon carbide (SiC) is widely recognized as a promising material for power electronics in…

Highly Tunable Moiré Proximity System in Twisted Hexagonal Boron Nitrides Heterostructure

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Kwanghee HanKyung Hee University – Seoul, Republic of Korea & City College of New York – New York, New York, USA_______________________________________ Moiré superlattice in twisted van der Waals materials have emerged as a promising platform for emulating strongly correlated physics due to the tunability of many-body interactions via external stimuli such as gate, strain, and…

Microscopic model for optically addressable spin defect pairs in hBN

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Viktor IvádyEötvös Loránd University – Budapest, Hungary_______________________________________ Optically detected magnetic resonance (ODMR) signals without resolvable zero-field splitting have been observed in hexagonal boron nitride across a broad spectral range, yet their microscopic origin is still unrevealed. Recent studies suggest that charge-transfer-induced spin pairs involving common point defects could naturally explain the key experimental features. We…

Low Temperature Spectroscopy of hBN Quantum Emitters

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