Publication List

Links

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    • Textbook

    1. R. K. Hanson, R. M. Spearrin, C. S. Goldenstein, Spectroscopy and Optical Diagnostics for Gases, Springer International Publishing, Switzerland (2015)

    Articles

    1. Vreeland R., Fetter K.L., Jaeger N.S.B., Yan Y., Xi X., Urban J.L., Pineda D.I., Spearrin R.M., Toxicant production in under-ventilated compartment fires assessed by laser absorption spectroscopy, Fire Safety Journal, Volume 158, 2025, 104534, ISSN 0379-7112, https://doi.org/10.1016/j.firesaf.2025.104534.
    2. Kuenning N.M., Morag E., Kim A.D., Addamane S., Williams B.S., and Spearrin R.M., "Rotational absorption spectroscopy of hydrogen sulfide using a quantum-cascade VECSEL near 2.7 THz," in Optica Sensing Congress 2025 (AIS, Sensors, QSM), Technical Digest Series (Optica Publishing Group, 2025), paper SM1C.3.
    3. Jeevaretanam, B, Nair, A.P., Kuenning, N.M., Fisher, T.S., & Spearrin, R.M. "Kinetically Controlled Solar-Thermal Decomposition of Hydrocarbons via Direct Irradiation of a Porous Absorber." Proceedings of the ASME 2025 19th International Conference on Energy Sustainability collocated with the ASME 2025 Heat Transfer Summer Conference. ASME 2025 19th International Conference on Energy Sustainability. Westminster, Colorado, USA. July 8–10, 2025. V001T08A001. ASME.
    4. Houston, G. A., Schwarm, K. K., Christensen, L. E., & Spearrin, R. M. (2025). analysis in planetary bodies. Journal of Quantitative Spectroscopy & Radiative Transfer., 337. https://doi.org/10.1016/j.jqsrt.2025.109382
    5. Olaee A., Kuenning N.M., Sanders I.C., & Spearrin R.M., (2025) "Pure rotational far-infrared quantum cascade laser absorption tomography of hydrides in reacting flows," Appl. Opt. 64, 3412-3422
    6. Jaeger N.S.B., Yan Y., & Spearrin R.M. (2025). Benzene and carbon monoxide sensing in urban fire environments via tunable interband cascade laser absorption spectroscopy. In Optical Sensing And Precision Metrology (Vol. 13380). SPIE. https://doi.org/10.1117/12.3042391
    7. Xu, H., Abuseada, M., Ju, Y. S., Spearrin, R. M., & Fisher, T. S. (2025). Estimation of extreme temperatures in direct solar methane pyrolysis within a porous medium. Frontiers in Nanotechnology, 6. https://doi.org/10.3389/fnano.2024.1502539
    8. Keller, A. R., Spearrin, R. M., Bendana, F. A., Phong, V., & Cortopassi, A. (2025). Monolithic Tri-Coaxial Methane-Oxygen Rocket Injector Enabled by Additive-Manufacturing. In AIAA Scitech 2025 Forum. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2025-1760
    9. Kuenning, N., Honaker, B. A., Perez, S. G., Olaee, A. L., & Spearrin, R. M. (2025). High-Speed Rotational Spectroscopy of the Hydroxyl Radical Behind Detonation Waves. In AIAA Scitech 2025 Forum. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2025-0863
    10. Keller, A. R., Bendana, F. A., Phong, V. C., & Spearrin, R. M. (2024). Additively-manufactured shear tri-coaxial rocket injector mixing and combustion characteristics. Aerospace Science and Technology., 155. https://doi.org/10.1016/j.ast.2024.109680
    11. Kuenning, N. M., Nair, A. P., Keller, A. R., Minesi, N. Q., Ozen, E., Bigler, B., Kriesel, J., Bennewitz, J. W., Burr, J., Danczyk, S. A., & Spearrin, R. M. (2024). Multiplexed MHz-rate mid-infrared laser absorption spectroscopy for simultaneous in-chamber CO, CO2, H2O, temperature, and pressure in a rotating detonation rocket engine. Combustion and Flame., 268. https://doi.org/10.1016/j.combustflame.2024.113608
    12. Keller A.R., Spearrin R.M., & Bendana F.A., (2024) “Shear coaxial methane–oxygen injector mixing and combustion examined by laser absorption tomography,” J. Propul. Power 40, 747–758 (2024).
    13. Xu H., Abuseada M., Ju Y.S., Spearrin R.M., & Fisher T.S. (2024). Local thermochemical mechanisms in direct solar graphite synthesis from methane. Energy and Fuels 38, 18087–18089. doi:10.1021/acs.energyfuels.4c03327
    14. Minesi, N. Q., Lai, L. H., Richmond, M. O., Jelloian, C. C., & Spearrin, R.M, (2024) Carbon Monoxide Dissociation at Planetary Entry Conditions Examined by Megahertz-Rate Laser Spectroscopy, Journal of Thermophysics and Heat Transfer, 2024, pp. 1–10. https://doi.org/10.2514/1.T6915, URL https://arc.aiaa.org/doi/10.2514/1.T6915.
    15. Olaee A., Kuenning N.M., Minesi N.Q., & Spearrin R.M., (2024) Near- Infrared Laser Absorption Imaging of Excited Oxygen Kinetics at MHz Rates. In AIAA AVIATION FORUM AND ASCEND 2024, Las Vegas, Nevada, July 2024. American Institute of Aeronautics and Astronautics.
    16. Kuenning N.M., Minesi N.Q., Honaker B.A., & Spearrin R.M., (2024). THz rotational absorption spectroscopy of the hydroxyl radical at high temperatures using a quantum-cascade laser. Proceedings of the Combustion Institute, 40(1–4). https://doi.org/10.1016/j.proci.2024.105480
    17. Sanders I.C., Oberlander K.A., & Spearrin R.M., (2024). Polytetrafluoroethylene (PTFE) burn characteristics and toxicant formation in an oxidizer cross-flow via laser absorption tomography. Proceedings of the Combustion Institute, 40(1–4). https://doi.org/10.1016/j.proci.2024.105394
    18. Keller, A. R., Spearrin, R. M., Bendana, F. A., Kaialau, D., Perezselsky, A., & Cortopassi, A. (2024). Shear coaxial mixing and combustion of methane-oxygen examined by laser absorption tomography. In AIAA SCITECH 2024 Forum. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2024-2420
    19. Jelloian, C. C., Minesi, N. Q., Mitchell Spearrin, R., Tibère-Inglesse, A., MacDonald, M. E., and Cruden, B. A., (2024) “Mars2020 Entry Shock Layer Thermochemical Kinetics Examined by Megahertz-Rate Laser Absorption Spectroscopy,” Journal of Thermophysics and Heat Transfer, Vol. 38, No. 1, 2024, pp. 129–144. https://doi.org/10.2514/1.T6868, URL https: //arc.aiaa.org/doi/10.2514/1.T6868
    20. Wei, C., & Spearrin, R. M. (2024). Four-dimensional laser absorption cinematography of species and temperature dynamics at 2 kHz in reacting flows. Optics Letters, 49(1). https://doi.org/10.1364/OL.512240
    21. Schwarm K.K., Spearrin R.M., (2023) Real-time FPGA-based laser absorption spectroscopy using on-chip machine learning for 10 kHz intra-cycle emissions sensing towards adaptive reciprocating engines, Applications in Energy and Combustion Science, Volume 16, 100231, ISSN 2666-352X, https://doi.org/10.1016/j.jaecs.2023.100231.
    22. Jeevaretanam B., Abuseada M., Wei C., Minesi N.Q., Fisher T.S., Spearrin R.M., (2023) Transient analysis of solar pyrolysis and hydrogen yield via interband cascade laser absorption spectroscopy of methane, acetylene, ethylene, and ethane, Applications in Energy and Combustion Science, Volume 16, 100223, ISSN 2666-352X, https://doi.org/10.1016/j.jaecs.2023.100223.
    23. Kuenning, N. M., Sanders, I. C., Minesi, N. Q., Pineda, D. I., & Spearrin, R. M. (2023). High-temperature absorption cross-sections and interference-immune sensing method for formaldehyde near 3.6-µm. Journal of Quantitative Spectroscopy & Radiative Transfer., 309. https://doi.org/10.1016/j.jqsrt.2023.108690
    24. Abuseada, M., Spearrin, R. M., & Fisher, T. S. (2023). Influence of process parameters on direct solar-thermal hydrogen and graphite production via methane pyrolysis. International Journal of Hydrogen Energy., 48(78), 30323–30338. https://doi.org/10.1016/j.ijhydene.2023.04.198
    25. Nair, A.P., Minesi, N.Q., Kuenning, N.M. et al. (2023) Optical pressure sensing at MHz rates via collisional line broadening of carbon monoxide: uncertainty quantification in reacting flows. Appl. Phys. B 129, 51. https://doi.org/10.1007/s00340-023-07985-1
    26. Minesi, N., Lai, L. H., Richmond, M. O., Jelloian, C., & Spearrin, R. M. (2023). Shock Tube Study of CO Dissociation at Entry Conditions via MHz Rate Laser Absorption Spectroscopy. In AIAA AVIATION 2023 Forum. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2023-3731
    27. Keller, A. R., Nair, A. P., Kuenning, N., Minesi, N., & Spearrin, R. M. (2023). Annular chamber geometry effects on a hypergolic liquid rotating detonation rocket engine. In AIAA AVIATION 2023 Forum. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2023-4385
    28. Tibère-Inglesse, A. C., Cruden, B. A., Jelloian, C., & Spearrin, R. M. (2023). Examination of Mars2020 shock-layer conditions via infrared emission spectroscopy of CO2. AIAA SCITECH 2023 Forum. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2023-0960
    29. Kuenning, N., Nair, A. P., Keller, A. R., Minesi, N., & Spearrin, R. M. (2023). Simultaneous in-chamber MHz sensing of CO, H2O, temperature, and pressure via mid-infrared laser absorption in a rotating detonation rocket engine. AIAA SCITECH 2023 Forum. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2023-2062
    30. Jelloian, C., Minesi, N., Spearrin, R. M., Tibere-Inglesse, A., MacDonald, M. E., & Cruden, B. A. (2023). Examination of Mars2020 shock-layer conditions via infrared laser absorption spectroscopy of CO2 and CO. AIAA SCITECH 2023 Forum. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2023-0959
    31. Ross, M., Nair, A. P., Karagozian, A., Spearrin, R. M., & Lietz, C. (2023). Synthetic Laser Measurements in Rotating Detonation Rocket Engine Simulations. AIAA SCITECH 2023 Forum. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2023-2063
    32. Wei C., Schwarm K.K., Pineda D.I., Spearrin R.M. (2023), Quantitative volumetric laser absorption imaging of methane and temperature in flames utilizing line-mixing effects, Proceedings of the Combustion Institute, Volume 39, Issue 1, 2023, Pages 1229-1237, ISSN 1540-7489, https://doi.org/10.1016/j.proci.2022.07.092.
    33. Nair A.P., Keller A.R., Minesi N.Q., Pineda D.I., Spearrin R.M. (2023), Detonation cell size of liquid hypergolic propellants: Estimation from a non-premixed combustor, Proceedings of the Combustion Institute, Volume 39, Issue 3, Pages 2757-2765, ISSN 1540-7489, https://doi.org/10.1016/j.proci.2022.06.015.
    34. Wei C., Abuseada M., Jeevaretanam B., Fisher T.S., Spearrin R.M. (2023) Concentrated solar-thermal methane pyrolysis in a porous substrate: Yield analysis via infrared laser absorption Proc Combust Inst, 15407489, 39 (4), pp. 5581-5589, https://doi.org/10.1016/j.proci.2022.07.007
    35. Minesi, N. Q., Nair, A. P., Richmond, M. O., Kuenning, N. M., Jelloian, C. C., & Spearrin, R. M. (2023). Excited oxygen kinetics at electronvolt temperatures via 5-MHz RF-diplexed laser absorption spectroscopy. Applied Optics, 62(3), 782. https://doi.org/10.1364/ao.479155
    36. Sanders, I. C., Kuenning, N. M., Minesi, N. Q., Pineda, D. I., & Spearrin, R. M. (2023). Methyl methacrylate thermal decomposition: Modeling and laser spectroscopy of species time-histories behind reflected shock waves. Fuel, 335, 126846. https://doi.org/10.1016/j.fuel.2022.126846
    37. Minesi, N. Q., Richmond, M. O., Jelloian, C. C., Kuenning, N. M., Nair, A. P., & Spearrin, R. M. (2022). Multi-line boltzmann regression for near-electronvolt temperature and co sensing via mhz-rate infrared laser absorption spectroscopy. Applied Physics B, 128(12). https://doi.org/10.1007/s00340-022-07931-7
    38. Schwarm, K. K., Minesi, N. Q., Jeevaretanam, B., Enayati, S., Tsao, T.-C., & Spearrin, R. M. (2022). Cycle-resolved emissions analysis of Polyfuel reciprocating engines via in-situ laser absorption spectroscopy. ASME 2022 ICE Forward Conference. https://doi.org/10.1115/icef2022-88543
    39. Wei, C., Schwarm, K. K., Pineda, D. I., & Spearrin, R. M. (2022). Quantitative volumetric laser absorption imaging of methane and temperature in flames utilizing line-mixing effects. Proceedings of the Combustion Institute. https://doi.org/10.1016/j.proci.2022.07.092
    40. Wei, C., Perakis, N., Pineda, D. I., Egolfopoulos, F. N., Ihme, M., & Spearrin, R. M. (2022). Turbulence-induced bias in time-averaged laser absorption tomography of correlated concentration and temperature fields with a first-order correction. Combustion and Flame, 242, 112210. https://doi.org/10.1016/j.combustflame.2022.112210
    41. Jelloian, C. C., Minesi, N. Q., & Spearrin, R. M. (2022). High-speed mid-infrared laser absorption spectroscopy of CO2 for shock-induced thermal non-equilibrium studies of planetary entry. Applied Physics B, 128(12). https://doi.org/10.1007/s00340-022-07934-4
    42. Nair, A. P., Keller, A. R., Minesi, N. Q., Pineda, D. I., & Spearrin, R. M. (2022). Detonation cell size of liquid hypergolic propellants: Estimation from a non-premixed combustor. Proceedings of the Combustion Institute. https://doi.org/10.1016/j.proci.2022.06.015
    43. Wei, C., Abuseada, M., Jeevaretanam, B., Fisher, T. S., & Spearrin, R. M. (2022). Concentrated solar-thermal methane pyrolysis in a porous substrate: Yield analysis via infrared laser absorption. Proceedings of the Combustion Institute. https://doi.org/10.1016/j.proci.2022.07.007
    44. Nair, A. P., Minesi, N. Q., Jelloian, C., Kuenning, N. M., & Spearrin, R. M. (2022). Extended tuning of distributed-feedback lasers in a bias-tee circuit via waveform optimization for mhz-rate absorption spectroscopy. Measurement Science and Technology, 33(10), 105104. https://doi.org/10.1088/1361-6501/ac7b13
    45. Jelloian, C. C., Bendana, F. A., Wei, C., Spearrin, R. M., & MacDonald, M. E. (2022). Nonequilibrium vibrational, rotational, and translational thermometry via megahertz laser absorption of CO. Journal of Thermophysics and Heat Transfer, 36(2), 266–275. https://doi.org/10.2514/1.t6376
    46. Nair, A. P., Keller, A. R., Morrow, D. S., Lima, A. B., Mitchell Spearrin, R., & Pineda, D. I. (2022). Hypergolic continuous detonation with space-storable propellants and additively manufactured Injector Design. Journal of Spacecraft and Rockets, 59(4), 1332–1341. https://doi.org/10.2514/1.a35272
    47. Abuseada, M., Wei, C., Spearrin, R. M., & Fisher, T. S. (2022). Solar–thermal production of graphitic carbon and hydrogen via methane decomposition. Energy & Fuels, 36(7), 3920–3928. https://doi.org/10.1021/acs.energyfuels.1c04405
    48. Keller, A. R., Otomize, J., Nair, A. P., Minesi, N. Q., & Spearrin, R. M. (2022). High-diodicity impinging injector design for rocket propulsion enabled by Additive Manufacturing. AIAA SCITECH 2022 Forum. https://doi.org/10.2514/6.2022-1265
    49. Sanders, I. C., Bendana, F. A., Kuenning, N., & Spearrin, R. M. (2022). Spatially-resolved characteristic velocity (C*) measurements for hybrid rocket combustion analysis using laser spectroscopy. AIAA SCITECH 2022 Forum. https://doi.org/10.2514/6.2022-2233
    50. Jelloian, C., Minesi, N. Q., & Spearrin, R. M. (2022). High-speed interband cascade laser absorption sensor for multiple temperatures in CO2 Rovibrational non-equilibrium. AIAA SCITECH 2022 Forum. https://doi.org/10.2514/6.2022-2398
    51. Kuenning, N., Sanders, I. C., Mellor, T., Minesi, N. Q., Pineda, D. I., & Spearrin, R. M. (2022). Kinetics of methyl methacrylate (MMA) combustion assessed by time-resolved speciation behind shock waves. AIAA SCITECH 2022 Forum. https://doi.org/10.2514/6.2022-2231
    52. Nair, A. P., Minesi, N. Q., Jelloian, C., Kuenning, N., & Spearrin, R. M. (2022). RF-waveform optimization for mhz-rate DFB laser absorption spectroscopy in dynamic combustion environments. AIAA SCITECH 2022 Forum. https://doi.org/10.2514/6.2022-2373
    53. Schwarm, K., Nair, A. P., Wei, C., Spearrin, R. M., Ozen, E., Gonzalez, E., & Kriesel, J. (2022). Three-dimensional real-time mapping of CO and CO2 concentrations in active Forest Burns with a UAV spectrometer. AIAA SCITECH 2022 Forum. https://doi.org/10.2514/6.2022-2291
    54. Nair, A. P., Keller, A. R., Lima, A., & Spearrin, R. M. (2022). Deflagration-to-detonation transition in an annular combustor with hypergolic propellants. AIAA SCITECH 2022 Forum. https://doi.org/10.2514/6.2022-0090
    55. Sanders, I. C., Bendana, F. A., Hagström, C. G., & Mitchell Spearrin, R. (2021). Injector effects on hybrid polymethylmethacrylate combustion assessed by thermochemical tomography. Journal of Propulsion and Power, 37(6), 928–943. https://doi.org/10.2514/1.b38316
    56. Bendana, F. A., Sanders, I. C., Stacy, N. G., & Spearrin, R. M. (2021). Localized characteristic velocity (C*) for rocket combustion analysis based on gas temperature and composition via laser absorption spectroscopy. Measurement Science and Technology, 32(12), 125203. https://doi.org/10.1088/1361-6501/ac18d3
    57. Wei, C., Schwarm, K. K., Pineda, D. I., & Spearrin, R. M. (2021). Learning network for laser absorption imaging in flames using mid-fidelity simulations. OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, PcAOP). https://doi.org/10.1364/cosi.2021.cth5a.6
    58. Wei, C., Schwarm, K. K., Pineda, D. I., & Mitchell Spearrin, R. (2021). Physics-trained neural network for sparse-view volumetric laser absorption imaging of species and temperature in reacting flows. Optics Express, 29(14), 22553. https://doi.org/10.1364/oe.427730
    59. Nair, A. P., Lee, D. D., Pineda, D. I., Kriesel, J., Hargus, W. A., Bennewitz, J. W., Bigler, B., Danczyk, S. A., & Spearrin, R. M. (2021). Methane-oxygen rotating detonation exhaust thermodynamics with variable mixing, equivalence ratio, and mass flux. Aerospace Science and Technology, 113, 106683. https://doi.org/10.1016/j.ast.2021.106683
    60. Li, J., Schwarm, K. K., Wei, C., & Mitchell Spearrin, R. (2021). Robust cepstral analysis at variable wavelength scan depth for narrowband tunable laser absorption spectroscopy. Measurement Science and Technology, 32(4), 045502. https://doi.org/10.1088/1361-6501/abcd6a
    61. Pineda, D. I., Bendana, F. A., & Mitchell Spearrin, R. (2021). Competitive oxidation of methane and hydrocarbons discerned by isotopic labeling and laser absorption spectroscopy of CO isotopologues in shock-heated mixtures. Combustion and Flame, 224, 54–65. https://doi.org/10.1016/j.combustflame.2020.11.006
    62. Sanders, I. C., Bendana, F. A., Stacy, N., Schwarm, K. K., & Spearrin, R. M. (2021). Swirl injection in hybrid polymethylmethacrylate combustion assessed by thermochemical imaging. AIAA Propulsion and Energy 2021 Forum. https://doi.org/10.2514/6.2021-3513
    63. Nair, A. P., Morrow, D., Keller, A. R., Lima, A., Pineda, D. I., & Spearrin, R. M. (2021). Rotating detonation of hypergolic space-storable rocket propellants with additively-manufactured Injector Design. AIAA Propulsion and Energy 2021 Forum. https://doi.org/10.2514/6.2021-3648
    64. Jelloian, C., Bendana, F. A., Wei, C., Spearrin, R. M., & MacDonald, M. E. (2021). Simultaneous vibrational, rotational, and translational thermometry based on laser absorption of CO in shock-induced non-equilibrium. AIAA Scitech 2021 Forum. https://doi.org/10.2514/6.2021-0448
    65. Wei, C., Schwarm, K. K., Pineda, D. I., & Spearrin, R. M. (2020). Volumetric laser absorption imaging of temperature, CO and CO2 in laminar flames using 3D masked Tikhonov regularization. Combustion and Flame. https://doi.org/10.1016/j.combustflame.2020.10.031
    66. Pineda, D. I., Paxton, L., Perakis, N., Wei, C., Luna, S., Kahouli, H., Ihme, M., Egolfopoulus, F. N., & Spearrin, R. M. (2020). Carbon oxidation in turbulent premixed jet flames: A comparative experimental and numerical study of ethylene, n-heptane, and toluene. Combustion and Flame, 221, 371–383. https://doi.org/10.1016/j.combustflame.2020.08.008
    67. Li, J., Nair, A. P., Schwarm, K. K., Pineda, D. I., & Spearrin, R. M. (2020). Temperature-dependent line mixing in the R-branch of the v3 band of methane. Journal of Quantitative Spectroscopy and Radiative Transfer, 255, 107271. https://doi.org/10.1016/j.jqsrt.2020.107271
    68. Lee, D. D., Bendana, F. A., Nair, A. P., Danczyk, S. A., Hargus, W. A., & Spearrin, R. M. (2020). Exploiting line-mixing effects for laser absorption spectroscopy at extreme combustion pressures. Proceedings of the Combustion Institute. https://doi.org/10.1016/j.proci.2020.08.037
    69. Bendana, F. A., Sanders, I. C., Castillo, J. J., Hagström, C. G., Pineda, D. I., & Spearrin, R. M. (2020). In-situ thermochemical analysis of hybrid rocket fuel oxidation via laser absorption tomography of CO, CO2, and H2O. Experiments in Fluids, 61(9), 190. https://doi.org/10.1007/s00348-020-03004-7
    70. Lee, D. D., Bendana, F. A., Nair, A. P., Pineda, D. I., & Spearrin, R. M. (2020). Line mixing and broadening of carbon dioxide by argon in the v3 bandhead near 4.2 µm at high temperatures and high pressures. Journal of Quantitative Spectroscopy and Radiative Transfer, 253, 107135. https://doi.org/10.1016/j.jqsrt.2020.107135
    71. Nair, A. P., Lee, D. D., Pineda, D. I., Kriesel, J., Hargus, W. A., Bennewitz, J. W., Danczyk, S. A., & Spearrin, R. M. (2020). MHz laser absorption spectroscopy via diplexed RF modulation for pressure, temperature, and species in rotating detonation rocket flows. Applied Physics B, 126(8), 138. https://doi.org/10.1007/s00340-020-07483-8
    72. Wei, C., Schwarm, K. K., Pineda, D. I., & Spearrin, R. M. (2020). Deep neural network inversion for 3D laser absorption imaging of methane in reacting flows. Optics Letters, 45(8), 2447. https://doi.org/10.1364/OL.391834
    73. Pineda, D. I., Urban, J. L., & Spearrin, R. M. (2020). Interband cascade laser absorption of hydrogen chloride for high-temperature thermochemical analysis of fire-resistant polymer reactivity. Applied Optics, 59(7), 2141. https://doi.org/10.1364/AO.386536
    74. Nair, A. P., Lee, D. D., Pineda, D. I., Spearrin, R. M., Krisel, J., Hargus, W. A., Bennewitz, J. B., & Danczyk, S. (2020). MHz Mid-infrared Laser Absorption of CO and CO2 for Pressure, Temperature, and Species in Rotating Detonation Rocket Flows. In AIAA Propulsion and Energy 2020 Forum. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2020-3867
    75. Schwarm, K. K., Strand, C. L., Miller, V. A., & Spearrin, R. M. (2020). Calibration-free breath acetone sensor with interference correction based on wavelength modulation spectroscopy near 8.2 μm. Applied Physics B, 126(1), 9. https://doi.org/10.1007/s00340-019-7358-x
    76. Lin, Y.-J., Cakmakyapan, S., Wang, N., Lee, D. D., Spearrin, R. M., & Jarrahi, M. (2019). Plasmonic heterodyne spectrometry for resolving the spectral signatures of ammonia over a 1-45 THz frequency range. Optics Express, 27(25), 36838. https://doi.org/10.1364/OE.27.036838
    77. Bendana, F. A., Lee, D. D., Wei, C., Pineda, D. I., & Spearrin, R. M. (2019). Line mixing and broadening in the v(1→3) first overtone bandhead of carbon monoxide at high temperatures and high pressures. Journal of Quantitative Spectroscopy and Radiative Transfer, 239, 106636. https://doi.org/10.1016/j.jqsrt.2019.106636
    78. Bendana, F. A., Lee, D. D., Schumaker, S. A., Danczyk, S. A., & Spearrin, R. M. (2019). Cross-band infrared laser absorption of carbon monoxide for thermometry and species sensing in high-pressure rocket flows. Applied Physics B, 125(11), 204. https://doi.org/10.1007/s00340-019-7320-y
    79. Pineda, D. I., Bendana, F. A., Schwarm, K. K., & Spearrin, R. M. (2019). Multi-isotopologue laser absorption spectroscopy of carbon monoxide for high-temperature chemical kinetic studies of fuel mixtures. Combustion and Flame, 207, 379–390. https://doi.org/10.1016/j.combustflame.2019.05.030
    80. Schwarm, K. K., Wei, C., Pineda, D. I., & Mitchell Spearrin, R. (2019). Time-resolved laser absorption imaging of ethane at 2 kHz in unsteady partially premixed flames. Applied Optics, 58(21), 5656. https://doi.org/10.1364/AO.58.005656
    81. Tancin, R. J., Spearrin, R. M., & Goldenstein, C. S. (2019). 2D mid-infrared laser-absorption imaging for tomographic reconstruction of temperature and carbon monoxide in laminar flames. Optics Express, 27(10), 14184. https://doi.org/10.1364/OE.27.014184
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