Joshua B Halpern - Publications

Chemistry Howard University 
Chemical physics, OER

56 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2018 Halpern JB. The C ̃B← XΣ Transition of Ethanedinitrile (CN): Assignment of the Electronic State Origin and Vibrational Bands. The Journal of Physical Chemistry. A. PMID 30196702 DOI: 10.1021/Acs.Jpca.8B06235  0.484
2014 McGurk SJ, Halpern JB, McKendrick KG, Costen ML. Parity-dependent rotational energy transfer in CN(A(2)Π, ν = 4, j F(1)ε) + N2, O2, and CO2 collisions. The Journal of Physical Chemistry. A. 118: 2007-17. PMID 24552624 DOI: 10.1021/Jp4123503  0.383
2012 N'Doumi M, Halpern JB. Variation of radiative lifetimes of NH2(Ã2A1) with rotational levels in the (0, 8, 0) and (0, 9, 0) vibration bands. The Journal of Chemical Physics. 136: 034307. PMID 22280760 DOI: 10.1063/1.3676782  0.657
2007 Zhao YL, Laufer AH, Halpern JB, Fahr A. Hydrogen migration and vinylidene pathway for formation of methane in the 193 nm photodissociation of propene: CH3CH=CH2 and CD3CD=CD2. The Journal of Physical Chemistry. A. 111: 8330-5. PMID 17685497 DOI: 10.1021/Jp072475J  0.308
2007 Fahr A, Halpern JB, Tardy DC. Calculational and experimental investigations of the pressure effects on radical-radical cross combination reactions: C2H5+C2H3. The Journal of Physical Chemistry. A. 111: 6600-9. PMID 17585737 DOI: 10.1021/Jp067357V  0.307
2007 Ismail H, Goldsmith CF, Abel PR, Howe PT, Fahr A, Halpern JB, Jusinski LE, Georgievskii Y, Taatjes CA, Green WH. Pressure and temperature dependence of the reaction of vinyl radical with ethylene. The Journal of Physical Chemistry. A. 111: 6843-51. PMID 17569512 DOI: 10.1021/Jp071041L  0.365
2004 Striebel F, Jusinski LE, Fahr A, Halpern JB, Klippenstein SJ, Taatjes CA. Kinetics of the reaction of vinyl radicals with NO: Ab initio theory, master equation predictions, and laser absorption measurements Phys. Chem. Chem. Phys.. 6: 2216-2223. DOI: 10.1039/B401163E  0.407
2002 Shahu M, Yang C, Pibel CD, McIlroy A, Taatjes CA, Halpern JB. Vinyl radical visible spectroscopy and excited state dynamics Journal of Chemical Physics. 116: 8343-8352. DOI: 10.1063/1.1471909  0.527
2000 Rudert AD, Martin J, Gao W, Zacharias H, Halpern JB. Collisional effects on angular momentum orientation in acetylene X̃ 1Σg+ (ν2″=1,j″). II. Disorientation by rotationally elastic and multiple inelastic collisions The Journal of Chemical Physics. 112: 9749-9758. DOI: 10.1063/1.481612  0.39
2000 Letendre L, Liu D, Pibel CD, Halpern JB, Dai H. Vibrational spectroscopy of a transient species through time-resolved Fourier transform infrared emission spectroscopy: The vinyl radical The Journal of Chemical Physics. 112: 9209-9212. DOI: 10.1063/1.481542  0.446
2000 Titarchuk T, Halpern JB. The excitation spectrum of cyanoacetylene (HC3N) and emission from C3N fragments Chemical Physics Letters. 323: 305-311. DOI: 10.1016/S0009-2614(00)00517-0  0.448
1999 Rudert AD, Martin J, Gao W, Halpern JB, Zacharias H. Collisional effects on angular momentum orientation in acetylene X̃ 1Σg+ (ν2″=1,j″). I. Preparation, detection and conservation in single collisions The Journal of Chemical Physics. 111: 9549-9559. DOI: 10.1063/1.480286  0.374
1999 Heijmen TGA, Moszynski R, Wormer PES, van der Avoird A, Rudert AD, Halpern JB, Martin J, Gao WB, Zacharias H. Rotational state-to-state rate constants and pressure broadening coefficients for He–C2H2 collisions: Theory and experiment The Journal of Chemical Physics. 111: 2519-2531. DOI: 10.1063/1.479530  0.422
1999 Pibel CD, McIlroy A, Taatjes CA, Alfred S, Patrick K, Halpern JB. The vinyl radical (Ã2A″←X̃2A′) spectrum between 530 and 415 nm measured by cavity ring-down spectroscopy Journal of Chemical Physics. 110: 1841-1843. DOI: 10.1063/1.477850  0.584
1999 Ochimizu T, Seki K, Yagi M, Halpern JB, Okabe H. Rate constants for the reactions of CN with C6–C8 unsaturated hydrocarbons: the relations between the reaction rates and the molecular lengths Chemical Physics Letters. 313: 451-455. DOI: 10.1016/S0009-2614(99)00962-8  0.323
1998 Rudert AD, Martin J, Zacharias H, Halpern JB. Stimulated Raman pumping of oriented linear molecules and the collisional decay and transfer of the orientation: C2H221 High-Power Lasers and Applications. 3271: 132-141. DOI: 10.1117/12.308402  0.403
1998 Löffler P, Wrede E, Schnieder L, Halpern JB, Jackson WM, Welge KH. Dissociation dynamics of acetylene Rydberg states as a function of excited state lifetime Journal of Chemical Physics. 109: 5231-5246. DOI: 10.1063/1.477140  0.475
1998 Rudert AD, Martin J, Zacharias H, Halpern JB. Controlling molecular angular momentum orientation by Raman pumping and optical ac Stark effect Chemical Physics Letters. 294: 381-386. DOI: 10.1016/S0009-2614(98)00886-0  0.42
1997 Vispute RD, Talyansky V, Chupoon S, Enck R, Dahmas T, Ogale SB, Sharma RP, Venkatesan T, Li YX, Salamanca-Riba LG, Iliadis AA, He M, Tang X, Halpern JB, Spencer MG, et al. Pulsed Laser Deposition of Highly Crystalline Gan Films on Sapphire Mrs Proceedings. 482. DOI: 10.1557/Proc-482-343  0.326
1997 Halpern JB, Huang Y. Radiative lifetimes, fluorescence quantum yields and photodissociation of the C2N2 (A1Σu−) and (B1Δu) states: evidence for sterically hindered, triplet mediated crossings to the (X1Σg+) ground state Chemical Physics. 222: 71-86. DOI: 10.1016/S0301-0104(97)00185-7  0.5
1996 Seki K, Yagi M, He M, Halpern JB, Okabe H. Reaction rates of the CN radical with diacetylene and dicyanoacetylene Chemical Physics Letters. 258: 657-662. DOI: 10.1016/0009-2614(96)00697-5  0.334
1996 Halpern JB, Dopheide R, Zacharias H. Preparation, collisional decay and transfer of alignment in C2H2 21 Astrophysics and Space Science. 236: 19-27. DOI: 10.1007/Bf00644318  0.475
1996 Halpern JB, Huang Y, Titarchuk T. Radiative and collisional processes in CNA 2? i Astrophysics and Space Science. 236: 11-17. DOI: 10.1007/Bf00644317  0.351
1994 Guthrie JA, Anderson WR, Kotlar AJ, Huang Y, Halpern JB. Strong resonance enhancement of the CN two‐photon absorption B 2Σ+←X 2Σ+(3,0) by the A 2Πi, v’=4 level Journal of Chemical Physics. 100: 8713-8719. DOI: 10.1063/1.467259  0.405
1993 Huang Y, Lu R, Halpern JB. Radiation and collisional energy transfer among the A 2Pi(i) and X 2Sigma(+) states of CN Applied Optics. 32: 981-986. PMID 20802777 DOI: 10.1364/Ao.32.000981  0.421
1993 Seki K, Frye JM, Okabe H, Halpern JB. Laser-induced chemical vapor deposition of aluminum from trimethylaluminum: wavelength and temperature dependence Journal of Crystal Growth. 132: 25-30. DOI: 10.1016/0022-0248(93)90243-P  0.334
1992 Lu R, Huang Y, Halpern JB. Radiative lifetimes of the CN (A 2 Pi i) electronic state The Astrophysical Journal. 395: 710. DOI: 10.1086/171691  0.48
1992 Seki K, Xu X, Okabe H, Frye JM, Halpern JB. Room-temperature growth of AlN thin films by laser ablation Applied Physics Letters. 60: 2234-2236. DOI: 10.1063/1.107040  0.341
1990 Halpern JB, Petway L, Lu R, Jackson WM, McCrary VR, Nottingham W. Photochemistry of cyano- and dicyanoacetylene at 193 NM The Journal of Physical Chemistry. 94: 1869-1873. DOI: 10.1021/J100368A027  0.349
1989 Atkins CG, Briggs RG, Halpern JB, Hancock G. Two-photon dissociation of H2O and D2O at 266 nm Journal of the Chemical Society, Faraday Transactions. 85: 1987-1997. DOI: 10.1039/F29898501987  0.396
1989 Barts SA, Halpern JB. Photodissociation of chlorine cyanogen between 190 and 213 nm The Journal of Physical Chemistry. 93: 7346-7351. DOI: 10.1021/J100358A018  0.337
1989 Barts SA, Halpern JB. The emission spectrum of C2N2 Chemical Physics Letters. 161: 207-211. DOI: 10.1016/S0009-2614(89)87061-7  0.502
1989 Halpern J, Miller G, Okabe H. The reaction of CN radicals with cyanoacetylene Chemical Physics Letters. 155: 347-350. DOI: 10.1016/0009-2614(89)87167-2  0.338
1988 Bai J, Okabe H, Halpern JB. Fluorescence spectrum and lifetime of i-C3H7O radical Chemical Physics Letters. 149: 37-39. DOI: 10.1016/0009-2614(88)80344-0  0.455
1987 Russell JA, McLaren IA, Jackson WM, Halpern JB. Photolysis of BrCN between 193 and 266 nm The Journal of Physical Chemistry. 91: 3248-3253. DOI: 10.1021/J100296A029  0.506
1986 Xie X, McCrary VR, Halpern JB, Jackson WM, Pugh E. UV photodissociation dynamics of the fumaronitrile molecule The Journal of Physical Chemistry. 90: 2670-2676. DOI: 10.1021/J100403A022  0.359
1985 McCrary VR, Lu R, Zakheim D, Russell JA, Halpern JB, Jackson WM. Coaxial measurement of the translational energy distribution of CS produced in the laser photolysis of CS2 at 193 nm Journal of Chemical Physics. 83: 3481-3490. DOI: 10.1063/1.449152  0.427
1985 Halpern JB, Tang X. Production of CN(A2Πi) in the photolysis of acetonitrile at 158 nm Chemical Physics Letters. 122: 294-299. DOI: 10.1016/0009-2614(85)80580-7  0.445
1983 Halpern JB, Koker EB, Jackson WM. Fluorescence spectrometry with photodissociative excitation of ammonia and hydrazine Analytical Chemistry. 55: 2000-2002. DOI: 10.1021/Ac00262A042  0.357
1983 Halpern JB, Tang X. Oscillator strength of the CN A 2Πi → B 2Σ+ (0,0) transition Chemical Physics Letters. 97: 170-174. DOI: 10.1016/0009-2614(83)85010-6  0.391
1982 Halpern JB, Jackson WM. Energy partitioning in the dissociation of cyanogen at 193 nm Journal of Physical Chemistry. 86: 973-976. DOI: 10.1021/J100395A028  0.381
1982 HALPERN JB, JACKSON WM. ChemInform Abstract: ENERGY PARTITIONING IN THE DISSOCIATION OF CYANOGEN AT 193 NM Chemischer Informationsdienst. 13. DOI: 10.1002/Chin.198226098  0.384
1980 Jackson WM, Beugre CN, Halpern JB. The dynamics of the C + NO reaction Journal of Photochemistry. 13: 319-324. DOI: 10.1016/0047-2670(80)80023-2  0.373
1980 Halpern J, Zacharias H, Wallenstein R. Rotational line strengths in two- and three-photon transitions in diatomic molecules Journal of Molecular Spectroscopy. 79: 1-30. DOI: 10.1016/0022-2852(80)90289-1  0.407
1980 Conley C, Halpern JB, Wood J, Vaughn C, Jackson WM. Laser excitation of the CN B2Σ+ ← A 2Π 0-0 and 1-0 bands Chemical Physics Letters. 73: 224-227. DOI: 10.1016/0009-2614(80)80361-7  0.508
1979 Halpern JB, Jackson WM, McCrary V. Multiphoton sequential photodissociative excitation: A new method of remote atmospheric sensing Applied Optics. 18: 590-592. DOI: 10.1364/Ao.18.000590  0.349
1979 Jackson WM, Halpern JB. Multiphoton ultraviolet photodissociation of C2N2 The Journal of Chemical Physics. 70: 2373-2377. DOI: 10.1063/1.437745  0.391
1979 Halpern JB. Rotational heating during IR multiphoton excitation Chemical Physics Letters. 67: 284-288. DOI: 10.1016/0009-2614(79)85163-5  0.335
1978 Miller GE, Halpern JB, Jackson WM. Tunable VUV photofragment monochromator. Applied Optics. 17: 2821-4. PMID 20203873 DOI: 10.1364/Ao.17.002821  0.419
1978 Jackson WM, Halpern JB, Lin CS. Multiphoton ultraviolet photochemistry Chemical Physics Letters. 55: 254-258. DOI: 10.1016/0009-2614(78)87013-4  0.44
1976 Campbell J, Hancock H, Halpern J, Welge KH. Infrared multiple-photon dissociation into ground electronic-state fragments Optics Communications. 18: 34-35. DOI: 10.1016/0030-4018(76)90503-4  0.405
1976 Zacharias H, Anders A, Halpern JB, Welge KH. Frequency doubling and tuning with KB5O8·4H2O and application to NO (A2Σ+) excitation Optics Communications. 19: 116-119. DOI: 10.1016/0030-4018(76)90399-0  0.345
1976 Campbell JD, Hancock G, Halpern JB, Welge KH. Dissociation of NH3 to electronic ground-state fragments by high-intensity CO2 laser radiation Optics Communications. 17: 38-42. DOI: 10.1016/0030-4018(76)90174-7  0.416
1976 Zacharias H, Halpern JB, Welge KH. Two-photon excitation of NO(A2Σ+; ν′ = 0,1,2) and radiation lifetime and quenching measurements Chemical Physics Letters. 43: 41-44. DOI: 10.1016/0009-2614(76)80752-X  0.467
1976 Campbell JD, Hancock G, Halpern JB, Welge KH. Off resonant dissociation of NH3 to ground state fragments by pulsed CO2 laser radiation Chemical Physics Letters. 44: 404-410. DOI: 10.1016/0009-2614(76)80693-8  0.432
1975 Halpern JB, Hancock G, Lenzi M, Welge KH. Laser induced fluorescence from NH2(2A1). State selected radiative lifetimes and collisional de‐excitation rates Journal of Chemical Physics. 63: 4808-4816. DOI: 10.1063/1.431223  0.5
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