ULTRAFAST SPECTROSCOPIC TOOL FOR HYBRID NANOPHOTONICS
Abstract
Abstract: We propose to acquire an ultrafast (~femtosecond) laser system to build an ultrafast characterization testbed to measure n onlinear and quantum optical properties of emerging photonic materials when integrated with nanophotonic devices. The progress in se miconductor fabrication technology, coupled with the wide availability of sophisticated electromagnetic simulators, has enabled the fabrication of photonic integrated circuits analogous to integrated electronics. On the other hand, the prohibitive metallic losses and the need for improved optical hardware for cutting edge technologies, such as autonomous navigation, machine learning hardware, the Internet of Things and smart home, have positioned our society at the cusp of a photonics revolution. The missing component of this revolution is the lack of ultra-low power, compact, and high speed active photonic devices, including light sources, electro-o ptic modulators, detectors, and nonlinear optical switches. To solve this problem, we need innovations both in materials and device design. Current research efforts in materials and devices are pursued separately, and the adverse effects of materials on devices a nd vice versa often present a significant roadblock to the progress of material enabled device research. Most of the existing ultr afast characterization tools measure material properties in a stand-alone fashion, whereas device researchers measure the macroscopi c device performance without going into microscopic details of the material properties. Our proposed testbed aims to solve this prob lem by characterizing the performance of various emerging materials when integrated on devices. We aim to measure the microscopic pr operties of the materials to understand their implication on the macroscopic device performance. The proposed testbed will be unique to the University of Washington campus, and will help the PI build a strongly collaborative research agenda with material scientist s and systems engineers. The developed setup will be flexible to accommodate different material systems including layered 2D materia ls (graphene and transition metal dichalcogenides), phase-change materials, complex oxides, rare-earth material compounds, and organ ic polymers. We will accommodate both pump and probe wavelengths ranging from 400-1600 nm, with a temporal resolution of ~200 fs.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 07, 2021
- Source ID
- N000142112864
Entities
People
- Arka Majumdar
Organizations
- Office of Naval Research
- United States Navy
- University of Washington