Nonidealities in rotating detonation engines

V Raman, S Prakash, M Gamba - Annual Review of Fluid …, 2023 - annualreviews.org
A rotating detonation engine (RDE) is a realization of pressure-gain combustion, wherein a
traveling detonation wave confined in a chamber provides shock-based compression along …

A review on the role of nanotechnology in the development of near-infrared photodetectors: materials, performance metrics, and potential applications

K Gundepudi, PM Neelamraju, S Sangaraju… - Journal of Materials …, 2023 - Springer
This review article focuses on the role of nanotechnology (NT) in the development of
advanced organic and inorganic photodetectors and their potential applications in the …

Nanosecond time-resolved dual-comb absorption spectroscopy

DA Long, MJ Cich, C Mathurin, AT Heiniger… - Nature …, 2024 - nature.com
Frequency combs have revolutionized the field of optical spectroscopy, enabling
researchers to probe molecular systems with a multitude of accurate and precise optical …

Experimental and synthetic laser-absorption-spectroscopy measurements of temperature, pressure, and CO at 1 MHz for evaluation of post-detonation fireball models

GC Mathews, M Gomez, CJ Schwartz… - Proceedings of the …, 2023 - Elsevier
A quantum-cascade-laser-absorption-spectroscopy (QCLAS) diagnostic was used to
characterize post-detonation fireballs of RP-80 detonators via measurements of …

Extended tuning of distributed-feedback lasers in a bias-tee circuit via waveform optimization for MHz-rate absorption spectroscopy

AP Nair, NQ Minesi, C Jelloian… - Measurement …, 2022 - iopscience.iop.org
Variations in injection-current waveform are examined using diplexed radio-frequency
modulation with continuous-wave distributed-feedback (CW-DFB) lasers, with the aim to …

Multiplexed MHz-rate mid-infrared laser absorption spectroscopy for simultaneous in-chamber CO, CO2, H2O, temperature, and pressure in a rotating detonation …

NM Kuenning, AP Nair, AR Keller, NQ Minesi… - Combustion and …, 2024 - Elsevier
A MHz-rate mid-infrared laser absorption sensing strategy has been developed to
simultaneously measure the intra-cycle variation of carbon monoxide (CO), carbon dioxide …

Near-MHz temperature and H2O measurements in post-detonation fireballs of 25 g hemispherical explosives using scanned-wavelength-modulation spectroscopy

CJ Schwartz, JW Stiborek, A Butler, D Chen… - Applied Optics, 2023 - opg.optica.org
A laser absorption spectroscopy diagnostic integrated within a hardened optical probe was
used to measure temperature and water mole fraction at 500 kHz in post-detonation fireballs …

Carbon-Monoxide Laser Absorption Spectroscopy Measurements over Ablating Graphite in a Shock Tunnel

JW Hargis, EE Mussoni, WE Swain, KP Lynch… - AIAA Journal, 2025 - arc.aiaa.org
Measurements of carbon monoxide (CO) during air–carbon ablation of graphite are
performed in the Sandia Hypersonic Shock Tunnel. Resistive heating is used to bring …

Quantum-cascade-laser-absorption-spectroscopy diagnostic for temperature, pressure, and NO X 2 Π 1/2 at 500 kHz in shock-heated air at elevated pressures

JJ Gilvey, MD Ruesch, KA Daniel, CR Downing… - Applied …, 2023 - opg.optica.org
The design, validation, and application of a quantum-cascade-laser-absorption-
spectroscopy diagnostic for measuring gas temperature, pressure, and nitric oxide (NO) in …

Optical pressure sensing at MHz rates via collisional line broadening of carbon monoxide: uncertainty quantification in reacting flows

AP Nair, NQ Minesi, NM Kuenning, AR Keller… - Applied Physics B, 2023 - Springer
An optical method for high-speed line-of-sight pressure measurements using infrared laser
absorption spectroscopy is presented with detailed uncertainty analysis related to …