5 papers
Twist-Reconfigurable van der Waals Moiré Photonic Crystals
Hugo Quard, Jiyun Kim, Anastasiia Zalogina +7
Moiré photonics has emerged as a fascinating concept to design and in situ control of the optical bands. Moiré enabled light localisation arises from the relative twist between per…
On chip, multifunctional quantum sensing using single spins in a van der Waals crystal
James Liddle-Wesolowski, Konosuke Shimazaki, Jiyun Kim +5
Nanoscale thermometry and magnetometry are in high demand across a wide range of scientific and technological applications. In this context, optically addressable spins in solids h…
Near-UV Single-Pixel Imaging with All-Inorganic Lead-Free Perovskite
Jiyun Kim, Xinyang Yu, Zijian Feng +4
Single-pixel imaging (SPI) is a powerful computational imaging technology that reconstructs spatial information from sequentially encoded optoelectrical signals without pixelated d…
In-situ Silicon Doped hBN by High-Temperature Molecular Beam Epitaxy Enables Single Photon Emission
Jiyun Kim, Nika Teran, Juliette Plo +8
Hexagonal boron nitride (hBN) has emerged as a leading host for optically active quantum defects. Yet introduction of specific impurity species other than carbon remains unexplored…
Harnessing Non-Boltzmann Steady States in Lanthanide Nanocrystals for Mid-Infrared Optoelectronics
Xinyang Yu, Yin Huang, Karin Yamamura +15
Converting mid-infrared (MIR) radiation to visible or near-infrared wavelengths is essential for imaging and sensing, yet achieving sensitive, low-power, and scalable detection rem…