Double resonance rotational spectroscopy of He–HCO+

2019 ◽  
Vol 21 (7) ◽  
pp. 3440-3445 ◽  
Author(s):  
Thomas Salomon ◽  
Matthias Töpfer ◽  
Philipp Schreier ◽  
Stephan Schlemmer ◽  
Hiroshi Kohguchi ◽  
...  
Keyword(s):  
Ground State ◽  
Double Resonance ◽  
Rotational Transition ◽  
Rotational Spectroscopy ◽  
Vibrational Transition ◽  
Resonance Technique ◽  
Dissociative State

The ground state of He–HCO+ is investigated using a recently developed double resonance technique, consisting of a rotational transition followed by a vibrational transition into a dissociative state.

Laser-rf double-resonance study of SiO+

1995 ◽  
Vol 73 (1-2) ◽  
pp. 101-105 ◽  
Author(s):  
T. J. Scholl ◽  
R. Cameron ◽  
S. D. Rosner ◽  
R. A. Holt
Keyword(s):  
Fine Structure ◽  
Ground State ◽  
Molecular Model ◽  
Double Resonance ◽  
Rotational Quantum Number ◽  
Resonance Method ◽  
Rotational Transition ◽  
Quantum Numbers ◽  
Data Yield ◽  
Π State

We used the laser-rf double resonance method to measure 15 fine structure intervals for rotational quantum numbers ranging from N = 5 to 79 of the ν = 0 level of the X2Σ+ state of SiO+. We present a molecular model, including perturbations from the A2Π state, which explains the observed strong variation of fine structure as a function of rotational quantum number. These data yield greatly improved predictions of the microwave spectrum of the ground state of SiO+. In particular we predicted the ground state rotational transition (N = 2, J = 5/2) → (N = 1, J = 3/2) to be 86 063(1) MHz, confirming that this transition is not the source of the radio line known as U86.2 at 86 243.45(40) MHz.

A Contribution to the Microwave Double Resonance Technique and Measurements of Collision Induced Transitions

1979 ◽  
Vol 34 (5) ◽  
pp. 571-574 ◽  
Author(s):  
H. Dreizier ◽  
W. Schrepp ◽  
R. Schwarz
Keyword(s):  
Millimeter Wave ◽  
Double Resonance ◽  
Absorption Cell ◽  
Resonance Technique ◽  
Wave Region

Abstract A construction for a versatile absorption cell is presented, which may be used for a large variety of double resonance experiments in the radiofrequency, microwave and millimeter wave region. Some measurements of collision induced transitions are reported.

scholarly journals A Microwave Fourier Transform Technique using Double Resonance Modulation

1987 ◽  
Vol 42 (4) ◽  
pp. 392-394 ◽  
Author(s):  
W. Stahl ◽  
J. Gripp ◽  
N. Heineking ◽  
H. Dreizler
Keyword(s):  
Fourier Transform ◽  
Double Resonance ◽  
Fourier Transform Spectroscopy ◽  
Resonance Technique ◽  
Double Resonances

We present a further modification of the double resonance technique in microwave FOURIER transform spectroscopy. The method is promising for the search of double resonances. It is demonstrated by three examples.

Infrared Microwave Double-Resonance Investigations on Trifluoromethyljodide (CF3I)

1982 ◽  
Vol 37 (4) ◽  
pp. 371-375
Author(s):  
E. Ibisch ◽  
U. Andresen
Keyword(s):  
Double Resonance ◽  
Vibrational Transition ◽  
Vibrational States ◽  
Rotational Transitions

Abstract An additional set of infrared microwave double-resonance signals was observed using the 9 R 12 line of the CO2 laser. The vibrational transition involved is assigned to the QQs(8) transition of the v1-fundamental. ⊿J = 1, K = 5 rotational transitions were found for J = 5, 6, 7, and 8 in both vibrational states. A detailed description of the apparatus and methods is given.

scholarly journals Doppler-free dual-comb spectroscopy of Rb using optical-optical double resonance technique

2016 ◽  
Vol 24 (22) ◽  
pp. 25894 ◽  
Author(s):  
Akiko Nishiyama ◽  
Satoru Yoshida ◽  
Yoshiaki Nakajima ◽  
Hiroyuki Sasada ◽  
Ken’ichi Nakagawa ◽  
...  
Keyword(s):  
Double Resonance ◽  
Resonance Technique ◽  
Optical Double Resonance
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