Ultracold Triplet Molecules in the Rovibrational
... first STIRAP pulse, which is kept on at maximum power for 1 s after ramping down laser 2. Thus, all molecules that are retrieved after the second STIRAP transfer have been deeply bound in state jgi. The 1 MHz width (FWHM) of the transfer efficiency is determined by power- and Fourier-broadening [25 ...
... first STIRAP pulse, which is kept on at maximum power for 1 s after ramping down laser 2. Thus, all molecules that are retrieved after the second STIRAP transfer have been deeply bound in state jgi. The 1 MHz width (FWHM) of the transfer efficiency is determined by power- and Fourier-broadening [25 ...
The Theory of Intermolecular Forces
... the barrier in this case is 2020 cm−1 or about 24 kJ mol−1 . If tunnelling is ignored, the lowestenergy stationary states for the inversion vibration have an energy of 886 cm−1 , and there are two of them, one confined to each minimum. When tunnelling is taken into account, these two states can mix. ...
... the barrier in this case is 2020 cm−1 or about 24 kJ mol−1 . If tunnelling is ignored, the lowestenergy stationary states for the inversion vibration have an energy of 886 cm−1 , and there are two of them, one confined to each minimum. When tunnelling is taken into account, these two states can mix. ...
1 Janaky Narayanan PC 5213 AY 2004
... stereochemistry. A molecule may be identified first by its chemical formula, then by its chemical structure, and finally by its molecular structure. For example, C2H6O is the chemical formula of ethyl alcohol. CH3-CH2-OH is the chemical structure of ethyl alcohol. The molecular structure is determin ...
... stereochemistry. A molecule may be identified first by its chemical formula, then by its chemical structure, and finally by its molecular structure. For example, C2H6O is the chemical formula of ethyl alcohol. CH3-CH2-OH is the chemical structure of ethyl alcohol. The molecular structure is determin ...
View accepted manuscript: Metastable triply charged diatomic
... The efficiency of metastable trication formation decreases rapidly as the molecuar mass decreases. Ideally, ionization should proceed quickly compared to typical vibrational time scales of the molecule. For the three trications that we observed this condition was reasonably well met by our 80 fs pul ...
... The efficiency of metastable trication formation decreases rapidly as the molecuar mass decreases. Ideally, ionization should proceed quickly compared to typical vibrational time scales of the molecule. For the three trications that we observed this condition was reasonably well met by our 80 fs pul ...
ap physics 1
... 2. Students should easily determine the expected direction of rotation for both merry-go-rounds after the forces are applied, but they should find an apparent discrepant event in terms of conservation of angular momentum. Group members conduct research and collaborate to determine why the law of con ...
... 2. Students should easily determine the expected direction of rotation for both merry-go-rounds after the forces are applied, but they should find an apparent discrepant event in terms of conservation of angular momentum. Group members conduct research and collaborate to determine why the law of con ...
Thesis-KM-oct11
... analysing data entailing the simultaneous collection of REMPI mass and frequency data over a certain mass area and frequency range into a single data matrix. This data matrix can be turned into a detailed 2D map of the measured area using commercial software such as Igor Pro and Labview which enable ...
... analysing data entailing the simultaneous collection of REMPI mass and frequency data over a certain mass area and frequency range into a single data matrix. This data matrix can be turned into a detailed 2D map of the measured area using commercial software such as Igor Pro and Labview which enable ...
Rotational spectroscopy
Rotational spectroscopy is concerned with the measurement of the energies of transitions between quantized rotational states of molecules in the gas phase. The spectra of polar molecules can be measured in absorption or emission by microwave spectroscopy or by far infrared spectroscopy. The rotational spectra of non-polar molecules cannot be observed by those methods, but can be observed and measured by Raman spectroscopy. Rotational spectroscopy is sometimes referred to as pure rotational spectroscopy to distinguish it from rotational-vibrational spectroscopy where changes in rotational energy occur together with changes in vibrational energy, and also from ro-vibronic spectroscopy (or just vibronic spectroscopy) where rotational, vibrational and electronic energy changes occur simultaneously.For rotational spectroscopy, molecules are classified according to symmetry into spherical top, linear and symmetric top; analytical expressions can be derived for the rotational energy terms of these molecules. Analytical expressions can be derived for the fourth category, asymmetric top, for rotational levels up to J=3, but higher energy levels need to be determined using numerical methods. The rotational energies are derived theoretically by considering the molecules to be rigid rotors and then applying extra terms to account for centrifugal distortion, fine structure, hyperfine structure and Coriolis coupling. Fitting the spectra to the theoretical expressions gives numerical values of the angular moments of inertia from which very precise values of molecular bond lengths and angles can be derived in favorable cases. In the presence of an electrostatic field there is Stark splitting which allows molecular electric dipole moments to be determined.An important application of rotational spectroscopy is in exploration of the chemical composition of the interstellar medium using radio telescopes.