Abstract: Recently there have been significant interests in studying the interaction of light with artificially engineered materials. In particular, metasurfaces, which consist of a single layer of nanostructures with subwavelength spacing patterned at an interface, have received much attention as they have the potential to replace traditional refractive-optics with compact, planar devices that can be realized with only a single layer of lithography. Furthermore, these devices can also be designed to possess novel functionalities with little to no increase in fabrication complexity. I Read more about CNS Seminar, "Dispersion Engineering and Control in Flat Optics Components Based on Metasurfaces" Alexander Zhu - Capasso Group
Abstract: The 5-year renewal plans for the STC for Integrated Quantum Materials will be presented. Our vision is to use quantum materials to enable quantum sensors, quantum communication, and quantum computing. Center faculty at Harvard, Howard University, and MIT will pursue four Research Areas: Van der Waals Heterostructures, led by Philip Kim (Harvard), Discovery of New Topological Crystals, led by Joe Checkelsky (MIT), Topologically Protected Qubits, led by Amir Yacoby (Harvard) and Pablo Jarillo-Herrero (MIT), and Quantum Networks with Engineered Solid State Quantum Emitters, led Read more about CNS Seminar: "Science and Technology Center for Integrated Quantum Materials," Professor Robert M. Westervelt
Abstract: Decoherence due to local noise is the worst enemy of quantum information. To combat this, topological quantum computing has been proposed as a powerful and elegant scheme to encode quantum information globally, and hence stay robust against local perturbations. In the past five years, this field has begun to see experimental breakthroughs made possible by combining superconductivity and various low-dimensional quantum materials with significant spin-orbit interaction. Here in the Yacoby group, we fabricate superconducting devices such as Josephson junctions and DC SQUIDs Read more about CNS Seminar: "Probing Topological Superconductivity in HgTe/HgCdTe Quantum Wells," Hechen Ren, Yacoby Group, HU
This seminar will introduce basic concepts and applications of Scattering Near-field Optical Microscopy (s-NSOM). In particular, the last generation microscope developed by Neaspec GmbH will be presented followed by a live demo in the afternoon at Harvard CNS Room G12.
Abstract: Solid state qubits have been studied extensively in quantum information science and technology for the last decade. Being a point defect in otherwise a perfect crystal, it gives rise to the localization of electrons and discrete energy levels. Compared to natural qubits such as atoms or ions, the solid system makes experiment much more convenient. However, the very same feature imposes inevitable challenges as well. Every qubit residing in the crystal sees slightly different environment due to local strain variation, nearby defects, etc. Furthermore, thermal Read more about CNS Seminar - "Environment Engineering of Solid State Qubits by Micro-Electro-Mechanical Systems," Young-Ik Sohn
CNS recently acquired new EDS/EBSD systems on our FEI Helios 660 dual beam FIB and an EDS system on our JEOL ARM STEM. We will be holding a workshop focused on EDS and EBSD on Thursday 11/19 from 9 - 5.