Award Data

Sivananthan Laboratories (SL) with the University of Iowa as the STTR partner, proposes to develop metasurface-coupled type II superlattice (T2SL) LWIR detectors that are predicted to outperform HgCdTe detectors. We developed in Phase I fundamental understanding of metasurface-coupled T2SLs, likely performance, and issues related to scaling up device structure to form arrays for LWIR imaging. In P ...

Sb-based III-V semiconductor Type-II superlattice (T2SL) materials with band structure-engineered device architectures are groundbreaking for infrared detectors and focal plane arrays (FPAs). T2SL FPAs have become very attractive candidates for various MDA/DOD sensor platforms including air, space, ships, and missiles. T2SL wafers, the starting materials of FPAs, are grown on large substrates usin ...

The proposed program will design a microwave interferometer for the purpose of measuring the electron density and other fundamental parameters of Diode-Pumped Alkali Laser (DPAL) gain media. Although several models of the collisional chemistry of DPALs exist, benchmarking such models with experimental measurements has been hampered by the absence of experimental measurements of the electron densit ...

Sivananthan Laboratories, Inc. with the University of Iowa proposes two major improvements to superlattice (SL) detector technology which are predicated to enhance the LWIR imaging performance comparable or better than HgCdTe-based detector performance. The performance of the current SL detectors is limited by the prevalence of native point defects (NPDs), thicker SL absorber region as required by ...

CU Aerospace (CUA) and team partner Lockheed Martin Space (LMS) propose to develop a low-cost and more efficient cryocooler cold head designed for 5 W cooling at 77 K, and to begin the process of certifying CUA’s innovative approach to provide CUA-built cold head subassemblies to LMS in order to reduce cryocooler costs. Materials and materials processing expertise at CUA will be used to investig ...

As the single largest consumer of materials and energy use worldwide, the construction sector remains a prime target for materials reuse reform. (Krausmann et al., 2009; De Ia Rue du Can & Price, 2008). Construction and ongoing operation of the built environment extracts a significant amount of resources -- and on an ongoing basis. According to the U.S. Green Building Council (USGBC), buildings ac ...

Sivananthan Laboratories, Inc. (Sivananthan Labs) will create a multiscale model capable of predicting the immediate and long-term effects of radiation events in operating and dormant infrared (IR) photodetector devices. Although extensible to any IR gap semiconductor and device architecture, the model will initially be developed for and applied to mid-wavelength IR (MWIR) and long-wavelength IR ( ...

QuesTek Innovations, a leader in Integrated Computational Materials Engineering (ICME), will lead a strong team of experts in computational materials design, additive manufacturing, coating technology, and turbine design/manufacturing to design and develop a comprehensive solution for a next-generation turbine blade alloy and coating system capable of sustained operation at 1300°C. Concurrent des ...

QuesTek Innovations, a leader in Integrated Computational Materials Engineering (ICME), will lead a strong team of experts in computational materials design, additive manufacturing, coating technology, and turbine design/manufacturing to design and develop a comprehensive solution for a next-generation turbine blade alloy and coating system capable of sustained operation at 1300°C. Concurrent des ...

Per- and polyfluoroalkyl substances (PFAS) have emerged as a pervasive and persistent threat to drinking water throughout the world. Called ‘forever chemicals” because their high stability leads PFAS to build up in the environment. PFAS accumulates in the blood from exposures and is associated with various cancers and other illnesses. There is an urgent need for a technology that can both remo ...