Zobrazeno 1 - 10
of 14
pro vyhledávání: '"D. H. Katayama"'
Publikováno v:
The Journal of Physical Chemistry. 100:7854-7858
We have used a double-resonance-enhanced multiphoton ionization (REMPI) technique to determine the quenching rates for collision-induced electronic transitions (CIETs) from the N2 a1Πg(v = 1) level as a function of the collision partners He, Ar, and
Autor:
D. H. Katayama
Publikováno v:
The Journal of Chemical Physics. 71:815-820
A 3m normal incidence vacuum spectrograph has been used to obtain the absorption spectra of 16O3 and 18O3 in the 3100–3600 A region. The band head positions of the absorption bands in this region (the so called Huggins bands) for normal and isotopi
Publikováno v:
The Journal of Chemical Physics. 72:5469-5475
Individual vibrational levels of the A 2Πu state of the N+2 molecular ion are excited by a tunable dye laser. Detection of an optical–optical double resonance fluorescence signal produced by a second laser demonstrates that the ions originally pum
Publikováno v:
Chemical Physics Letters. 62:542-546
Atomic helium transitions from its metastable 2s 1 S state to high n p 1 P ( n = 14 to 36) Rydberg states have been observed via opto-galvanic spectroscopy for the first time. The observed transition frequencies agree well with predictions of quantum
Autor:
D. H. Katayama, J. A. Welsh
Publikováno v:
The Journal of Chemical Physics. 75:4224-4230
A pulsed, tunable dye laser is used to obtain either the excitation spectrum for the A 2Πi–X 2Σ+ (0,0) band of CO+, or the time resolved fluorescence from individual rotational levels of the upper state for this transition. The ions are formed by
Autor:
D. H. Katayama
Publikováno v:
The Journal of Chemical Physics. 84:1477-1481
A two laser, double resonance technique is used to determine propensities for collision induced rotational energy transfer by Ar atoms in the N2 B 3Πg (v=3) state. The results show that e/f parity conservation is much more rigorous for the low J val
Publikováno v:
The Journal of Chemical Physics. 71:1662-1669
Individual vibrational levels (v=3–9) of the A 2Π state of the CN radical are excited by a tunable dye laser. The time and wavelength resolved fluorescence of the selectively excited levels is then recorded as a function of the Ar carrier gas pres
Publikováno v:
The Journal of Chemical Physics. 70:4542-4551
The photodissociation cross sections of a beam of Ar2+ formed by associative ionization in a conventional electron impact ion source have been measured over the wavelength range from 265 to 715 nm. The measured cross sections are for transitions from
Publikováno v:
The Journal of Chemical Physics. 62:2939-2948
The absorption spectrum of metastable O2, excited by a microwave discharge, has been photographed in second order of the helium continuum with a 6.65 m vacuum spectrograph. The band progression in the 835–900 A region has been investigated further.
Publikováno v:
The Journal of Chemical Physics. 59:4309-4319
The total absorption, photoionization and neutral product cross sections for H2O and D2O have been determined over the wavelength range 580 to 1050 A. The helium continuum was used as a background with a bandwidth of approximately 0.5 A. Previously o