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SBC: N2 Biomedical, LLC Topic: N19AT004
Quantum cascade laser optical output power is limited by laser facet catastrophic optical damage (COD). In edge-emitting semiconductor lasers COD is a thermal runaway process wherein the front facet of the laser heats under high power operation. This facet heating reduces the semiconductor bandgap which increases the optical absorption and also increases the electrical injection current in the fac ...STTR Phase I 2019 Department of DefenseNavy
SBC: Pendar Technologies, LLC Topic: N19AT004
In this program, we will develop solutions to optimize QCL fabrication processes, such as facet passivation and high thermal conductivity coatings, that will mitigate the reliability issues for high power QCL applications. In phase I, we will first evaluate all concepts and efforts that have been largely investigated for GaAs based high power diode lasers and transfer the knowledge to InP based QC ...STTR Phase I 2019 Department of DefenseNavy
SBC: IRGLARE LLC Topic: N19AT004
The development of a catastrophic optical damage model for quantum cascade lasers describing instantaneous laser damage at high optical power levels is proposed. The model will be validated by comparison to experimental data. Based on obtained results, changes to laser design and laser fabrication resulting in an increased damage threshold will be implemented. The work will ultimately result into ...STTR Phase I 2019 Department of DefenseNavy
SBC: TRITON SYSTEMS, INC. Topic: N18AT024
Triton Systems, Inc. proposes to develop an affordable, lightweight and durable hybrid composite system for next generation structural frame composites that will survive both short- and long-term thermal and chemical exposure and abrasive conditions. The team will develop a hybrid materials system that is an improvement on traditional carbon fiber reinforced polymer (CFRP) systems in performance a ...STTR Phase II 2019 Department of DefenseNavy
High Speed Spinning Scroll Expander (HiSSSE)- Organic Rankine Cycle for Increased Naval Ship Power Density and Fuel EfficiencySBC: Air Squared, Inc. Topic: N19AT013
Waste heat from Naval diesel generators provides significant opportunity to introduce organic Rankine cycles (ORC) to increase their fuel efficiency. The objective of the proposed effort is to design and demonstrate a high-speed, spinning scroll expander (HiSSSE) ORC as a power dense waste heat recovery system for diesel generators on ships. The system will leverage Air Squared’s spinning scroll ...STTR Phase I 2019 Department of DefenseNavy
SBC: SPECTRAL ENERGIES LLC Topic: N19AT013
The STTR topic N19A-T013 seeks innovative technology to improve the power density and efficiency of propulsion and power generation devices. To address this challenge, Spectral Energies in collaboration with its academic partner Dr. Rory Roberts at Wright State University proposes to develop a compact heat recovery system based on a supercritical CO2 based Rankin Cycle. At the end of the STTR prog ...STTR Phase I 2019 Department of DefenseNavy
SBC: SPECTRAL SCIENCES INC Topic: N19AT015
Accurate characterization of and propagation modeling through the Marine Boundary Layer is critical for maximizing Electro-Magnetic (EM) systems signal exploitation for naval asset offensive, defensive, and stealth operational performance. Strong temperature and humidity gradients in the Surface Boundary Layer lead to optical paths exhibiting Electro-Optic Infrared (EOIR) anomalous refraction and ...STTR Phase I 2019 Department of DefenseNavy
SBC: Texas Research Institute, Austin, Inc. Topic: N19AT011
Texas Research Institute Austin, Inc. (TRI/Austin) and Florida Institute of Technology (FIT) in the Phase I effort will implement the use of a revolutionary new class of adhesives to attach C4 to underwater mines. These adhesives are extraordinarily insensitive to water, tolerant of unprepared surfaces, and offer extremely rapid cure and excellent bond strength. These materials can be applied usin ...STTR Phase I 2019 Department of DefenseNavy
SBC: MANTEL TECHNOLOGIES INC Topic: N19AT013
The U.S. Navy seeks methods to improve the fuel economy of marine diesel engines through utilization of waste heat. Low temperature engine jacket water, lubrication oil, and aftercooler air are largely untapped streams of thermal energy on these ships, but their utilization circumvents many operation challenges associated with exhaust gases. For example, variable and high exhaust gas temperatures ...STTR Phase I 2019 Department of DefenseNavy
SBC: VALOR ROBOTICS, LLC Topic: N19AT011
The objective of the Phase I proposal is to investigate the application of controlled cavitation cleaning technology in conjunction with gecko-inspired mechanical adhesion and soft elastomeric applicators for use in non-intrusive EOD operations. This investigation requires the proof-of-concept testing and validation of a controlled cavitation cleaning mechanism, and a soft robotic gecko-inspired m ...STTR Phase I 2019 Department of DefenseNavy