Triangular photonic crystals with integrated color centers for quantum mesh photonics in silicon carbide
Abstract
Quantum technologies are of fundamental interest in assuring communication security and enhanced computation capabilities. Systems that can store quantum information for a long time and, through the process of quantum entanglement, distribute that information at a distance are necessary for the development of key quantum hardware. Defects in silicon carbide, called color centers, have been known to exhibit desired properties in this regard. Furthermore, their integration with nanophotonic devices makes these properties more efficient and scalable. This program sets out to investigate a particular geometry of nanophotonic devices in silicon carbide, the triangular cross-section devices, with integrated color centers and develop quantum hardware for quantum networking and computing applications. Our first goal is to design and fabricate photonic crystal mirrors that efficiently reflect color center light precisely positioned inside of a triangular waveguide. We will then interfere the reflected no-phonon light emission from two color centers integrated with the photonic crystal mirror on a free-space Hong-Ou-Mandel setup to characterize the indistinguishability of the individual emitters and their prospects for distributing entanglement across a silicon carbide chip. Next, we will conduct a feasibility study of triangular photonics with regards to light coupling between two co-propagating waveguides, waveguide and a ring resonator, and waveguide with an overlayed superconducting nanowire single photon detector. Based on the modeling and fabrication analyses, we will determine if quantum mesh photonics silicon carbide architecture in triangular cross-section geometry can result in high fidelity spin-spin entanglement distribution.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 29, 2024
- Source ID
- FA95502310266
Entities
People
- Marina Radulaski
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of California, Davis