Kilowatt highly-multimode-fiber amplifier for research on suppressing nonlinear instability
Abstract
Microelectromechanical systems (MEMS) for operations in high-temperature harsh environments, such as aerospace reaching 600degreesC and gas turbine engines and nuclear power generators hitting 900degreesC+, are becoming increasingly desired for their miniaturized volume and low weight. Critical to the applicability of MEMS in such harsh settings is the ability to test device performance over a wide range of temperatures and frequencies. Current commonly used testing paradigms have mostly been limited up to 300. and in MHz ranges. Funds are requested by the University of Florida (UF) to acquire a high-temperature vacuum probe station with electrical measurement system for supporting education and research to advance radio-frequency (RF) and gigahertz (GHz) MEMS resonators and oscillators, especially those based on wide-bandgap (WBG) materials such as silicon carbide (SiC), gallium nitride (GaN), aluminum nitride (AlN), and their heterostructures. The requested instrumentation will provide high-temperature, RF-microwave frequency, low-noise, and high-throughput capabilities to complement the precision measurement facilities on campus, enabling unique opportunities for investigating various innovative devices and systems at very high temperatures. This integrated system will serve as both a characterization tool and a platform for basic research and education, making it a highly valuable tool for advancing and catalyzing multidisciplinary research at the frontiers and interfaces of microelectronics, advanced materials, MEMS-NEMS, photonics, and space science and engineering. The PIs and their collaborators at UF have extensive expertise in developing novel microsystems for RF-GHz signal processing, unconventional energy-efficient computing devices including for harsh environments, aerospace, physical sensing and detection, energy conversion and harvesting, and other applications of great interest to the DoD. The PIs also have exceptional track records of mentoring graduate students and postdoctoral fellows in all relevant multidisciplinary fields, and long-term commitment to growing semiconductor workforce with diverse background and cultivating new generations of experts in advanced electronics. The PIs have also sustained strong programs for engaging and training undergraduate researchers in their labs. By leveraging the unique capabilities of this system, the proposed research and educational activities in this project shall offer unique opportunities for basic research and technological breakthroughs in the coming decade.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 05, 2025
- Source ID
- FA95502410033
Entities
People
- Hui Cao
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- Yale University