Optical/Infrared Microscopy and Spectroscopy System for the Characterization of Point Defects and Carrier Dynamics in 2D and 3D Semiconductors
Abstract
Under the present research instrumentation program, the PIs propose to augment the functionalities of a shared confocal/atomic force microscope through the acquisition of a supercontinuum laser source, a streak camera, and a superconducting infrared (IR) detector. The combined system Ñ to be operated as an integrated user facility Ñ is conceived as a versatile platform for the investigation of point defects and carrier dynamics in bulk and two-dimensional semiconductors. Outstanding characteristics making this system unique are its broad spectral range (spanning from the visible into the infrared), picosecond temporal resolution, superb detection sensitivity, and high pulse energy. These plans capitalize on the already singular capabilities of our base instrument, featuring confocal and atomic force microscopy as well as optically-detected, time-resolved magnetic resonance at variable temperatures down to ~5 K. Combined in the form of a self-standing imaging and spectroscopy station, the finalized system will serve as a multimodal tool able to tackle a broad range of important problems in quantum and nanoscale science including ¥ carrier dynamics in two-dimensional materials for developing ultrafast light emitters, ¥ generation of light-matter particles for applications as fast modulators or for quantum simulation, ¥ enhanced spin and charge manipulation protocols of single atomic defects in wide bandgap semiconductors for spintronics and quantum information processing, ¥ the discovery and characterization of novel color centers with emission in the infrared for integration into the telecom band, Accompanying the PIs is a broad group of researchers from physics, chemistry, and electrical, mechanical, chemical, and biomedical engineering forming an interdisciplinary group with an extensive track record of collaborative work. Consistent with this notion, the proposed instrumentation will be setup in the newly constructed interdisciplinary Center for Discovery and Innovation on the CCNY campus, and will be operated as a shared facility. Besides the technological and scientific advantages, the proposed instrument is expected to have a profound educational impact because it offers students and postdocs the opportunity to tackle problems of current interest as well as the ability to interact with a wide network of collaborating labs. Both PIs are part of the NSF-funded CREST center at CCNY specifically aimed at mentoring and training students in material sciences and quantum technologies. This partnership not only provides a broad dissemination platform but also allows the PIs to successfully attract and recruit students from communities under-represented in the sciences.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Oct 01, 2019
- Source ID
- W911NF1910497
Entities
People
- Carlos Meriles
Organizations
- Army Contracting Command
- City University of New York
- Office of the Secretary of Defense