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Michelsen, Hope
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Hope Michelsen
Technical Staff
Combustion Chemistry
Phone: 925.294.2335
Fax: 925.294.2276
hamiche@sandia.gov
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Bio
Michelsen has been at Sandia National Laboratories since 1999. She currently develops optical diagnostics for quantitative detection of submicron soot particles. She was a staff scientist from 1997 to 1999 at Atmospheric and Environmental Research, Inc., where she used satellite and in situ measurements in combination with laboratory data to study the influence of aerosol-mediated chemistry on stratospheric ozone abundance at mid-latitudes. She also studied distributions and correlations of long-lived tracers to understand stratospheric transport.
Michelsen was a postdoctoral fellow with Profs. James G. Anderson and Steven C. Wofsy at Harvard University from 1993 to 1997. She designed a low-temperature flow reactor to measure reaction rates of molecules with aerosol particles, studied distributions of measured long- and short-lived stratospheric trace species, and analyzed and modeled remote and in situ stratospheric observations to identify factors that influence the abundance of polar and mid-latitude ozone. She earned a Ph.D. from Stanford University, with a major in chemistry and minor in physics under the guidance of Prof. Richard N. Zare, and an A.B. in chemistry from Dartmouth College.
Research Interests
Research Projects
- Modeling time-resolved laser-induced incandescence of soot
- Experimental studies of laser-induced incandescence of soot inflames
- Investigation of the effects of volatile coatings on the optical properties and laser-based detection of soot
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Recent Publications
- L. Nemes, A. M. Keszler, C. G. Parigger, J. O. Hornkohl, H. A. Michelsen, and V. Stakhursky, "The C3 puzzle: Formation of and spontaneous emission from the C3 radical in carbon plasmas," Int. Elect. J. Mol. Design, 5, 150–167, (2006).
- H. A. Michelsen, "Laser-induced incandescence of flame-generated soot on a picosecond timescale," Appl. Phys. B, 83, 443–448, (2006).
- C. Schultz et al., "Laser-induced incandescence: Recent trends and current questions," Appl. Phys. B, 83, 333–354, (2006).
- H. A. Michelsen, A. V. Tivanski, M. K. Gilles, L. H. van Poppel, M. A. Dansson, and P. R. Buseck, "Particle formation from pulsed laser irradiation of soot aggregates studied with SMPS, TEM, NEXAFS," Applied Optics, in press, (2006).
- L. Nemes, A. M. Keszler, C. G. Parigger, J. O. Hornkohl, H. A. Michelsen, and V. Stakhursky, "On spontaneous emission from the C3 radical in carbon plasma," Appl. Opt., submitted, (2006).
- H. A. Michelsen, et al., "Modeling laser-induced incandescence of soot: A summary and comparison of LII models," Appl. Phys. B, submitted, (2006).
- B. K. Pun, C. Seigneur, and H. A. Michelsen, "Atmospheric Transformations," Air Pollution Modeling: Theories, Computational Methods, and Available Software, 2nd edition, New York, 2, Chapter 12, (2005).
- P. O. Witze, M. Y. Gershenzon, and H. A. Michelsen, "Dual-laser LIDELS: An optical diagnostic for time-resolved volatile fraction measurements of diesel particulate emissions," Proc. SAE, SAE paper, 2005-01-3791, (2005).
- E.-W. Chiou, L. W. Thomason, S. P. Burton, and H. A. Michelsen, "Assessment of the SAGE II version 6.2 water vapor data set through intercomparison with ATMOS/ATLAS-3 measurements," Geophys. Res. Lett, 31, L14101, (2004).
- H.A. Michelsen; P.O. Witze; D. Kayes; S. Hochgreb, "Time-resolved laser-induced incandescence of soot: The influence of experimental factors and microphysical mechanisms," Appl. Opt., 42, 5577-5590, (2003).
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