M
Mitchio Okumura
Researcher at California Institute of Technology
Publications - 106
Citations - 4695
Mitchio Okumura is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Spectroscopy & Infrared spectroscopy. The author has an hindex of 33, co-authored 102 publications receiving 4426 citations. Previous affiliations of Mitchio Okumura include University of California & University of California, Berkeley.
Papers
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Journal ArticleDOI
Kinetics of HO2 + HO2 → H2O2 + O2: Implications for Stratospheric H2O2
Lance E. Christensen,Mitchio Okumura,Stanley P. Sander,Ross J. Salawitch,Geoffrey C. Toon,B. Sen,J. F. Blavier,Kenneth W. Jucks +7 more
TL;DR: In this article, the reaction HO2 + HO2 → H2O2 + O2(1) has been studied at 100 Torr and 222 K to 295 K.
Journal ArticleDOI
High-resolution infrared spectroscopy of solid hydrogen: The tetrahexacontapole-induced Delta J=6 transitions.
TL;DR: Weak new features in the absorption spectrum of solid hydrogen were observed by high-resolution infrared spectroscopy, and assigned as transitions with total change in angular momentum of ΔJ=6.7%, and the tetrahexacontapole moment was determined.
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Methane on Mars and Habitability: Challenges and Responses
Yuk L. Yung,Pin Chen,Kenneth H. Nealson,Sushil K. Atreya,Patrick Beckett,Jennifer G. Blank,Bethany L. Ehlmann,John M. Eiler,Giuseppe Etiope,Giuseppe Etiope,James G. Ferry,François Forget,Peter Gao,Renyu Hu,Armin Kleinböhl,Ronald W. Klusman,Franck Lefèvre,Charles E. Miller,Michael A. Mischna,Michael J. Mumma,Sally Newman,Dorothy Z. Oehler,Mitchio Okumura,Ronald S. Oremland,Victoria J. Orphan,Radu Popa,Michael J. Russell,Linhan Shen,Barbara Sherwood Lollar,Robert L. Staehle,Vlada Stamenkovic,Daniel A. Stolper,Alexis S. Templeton,Ann Carine Vandaele,Sébastien Viscardy,Christopher R. Webster,Paul O. Wennberg,Michael L. Wong,John Worden +38 more
TL;DR: Geological, geochemical, and biogeochemical processes related to the fundamental question: how active is Mars, geochemically and/or biologically, are examined, which suggests the possibility of redox gradients supporting life and habitability on Mars.
Journal ArticleDOI
High-accuracy transition frequencies for the O2 A-band
David J. Robichaud,Joseph T. Hodges,Piotr Masłowski,Laurence Y. Yeung,Mitchio Okumura,Charles E. Miller,Linda R. Brown +6 more
TL;DR: Frequencies for 32 P-branch transitions of the O2 A-band (b1Σ+g ← Χ3Σ-u) were measured between 12975 and 13115 cm^−1 using the frequency-stabilized cavity ring-down spectrometer located at National Institute of Standards and Technology, Gaithersburg, MD as discussed by the authors.
Journal ArticleDOI
Cavity Ringdown Spectroscopy of cis-cis HOONO and the HOONO/HONO2 Branching Ratio in the Reaction OH + NO2 + M
Brian D. Bean,Andrew K. Mollner,Sergey A. Nizkorodov,Gautham Nair,Mitchio Okumura,Stanley P. Sander,Kirk A. Peterson,Joseph S. Francisco +7 more
TL;DR: In this paper, a low-pressure discharge flow reactor was used to study the termolecular association reaction OH + NO2 + M and both HONO2 and HOONO products were detected by infrared cavity ringdown spectroscopy (IR-CRDS).