Ivan I Kravchenko Senior R&D staff member Contact kravchenkoii@ornl.gov | 352.222.6474 All Publications Nanoscale optical nonreciprocity with nonlinear metasurfaces Experimental evidence for the two-path description of neutron spin echo... Implanted Guard Ring Edge Termination With Avalanche Capability for Vertical GaN Devices Multichannel meta-imagers for accelerating machine vision 1 kV Self-Aligned Vertical GaN Superjunction Diode 2 kV, 0.7 mΩ•cm2 Vertical Ga2O3 Superjunction Schottky Rectifier with Dynamic Robustness Direct Visualization of Charge Migration in Bilayer Tantalum Oxide Films by Multimodal Imaging Digital Modeling on Large Kernel Metamaterial Neural Network 1 kV GaN-on-Si Quasi-Vertical Schottky Rectifier Nonreciprocal transmission through metasurfaces with phase transition materials... Topology-Preserving Nonlinear Structured Light Generation from All-Dielectric Metasurfaces Resonant Chiral Effects in Nonlinear Dielectric Metasurfaces Manipulation of Scattering Spectra with Topology of Light and Matter... Digital and Gradient Refractive Index Planar Optics by Nanoimprinting Mesoporous Silicon... Compound Meta-Optics for Complete and Loss-Less Field Control... Enabling a novel approach to a controlled fabrication of 1D crystalline nanowires on suspended microstructures of arbitrary g... Topology-empowered membrane devices for terahertz photonics... Meta-optic accelerators for object classifiers... Terahertz bound state in the continuum in dielectric membrane metasurfaces... Gold Ion Beam Milled Gold Zero-Mode Waveguides... van der Waals Semiconductor Empowered Vertical Color Sensor... All-Dielectric Meta-Optics for High-Efficiency Independent Amplitude and Phase Manipulation... Collective Phonon–Polaritonic Modes in Silicon Carbide Subarrays... Large area vertical Ga2O3 Schottky diodes for X-ray detection... Large-Scale Metasurfaces Based on Grayscale Nanosphere Lithography... Pagination Current page 1 Page 2 Page 3 … Next page ›› Last page Last » Key Links Curriculum Vitae ORCID Organizations Physical Sciences Directorate User Facilities Center for Nanophase Materials Sciences Nanomaterials Synthesis Section Nanofabrication Research Laboratory Group