Using photonics, sensors, and numerical techniques, Spectral Energies, LLC is developing diagnostics and modeling solutions in reacting and non-reacting flows Spectral Energies, LLC (SE) utilizes advanced technologies in optics, photonics, active sensing, and numerical analysis to solve real-world problems encountered in thermal-fluid, energy, propulsion, and aerospace systems. Grounded in this work, the firm has ielded commercial instruments for gas sensing, chemical speciation, thermometry, pressure, and velocimetry for a wide range of applications. Their ongoing development efforts include component-level engineering (e.g., laser sources and custom opto-mechanics), as well as system-level instrument integration, training, consulting, and application. SE also has machining and manufacturing capabilities for fluid mechanics, combustion, and other test cell applications.