Momentum Transfer to a Free Floating Double Slit
... of the molecule with the H directed to the right. We select two different regions of KER, which correspond to distinct internuclear distances (slit separations). As stated above, the interference pattern is inverted compared to the optical case. More importantly, the vertical interference stripes ar ...
... of the molecule with the H directed to the right. We select two different regions of KER, which correspond to distinct internuclear distances (slit separations). As stated above, the interference pattern is inverted compared to the optical case. More importantly, the vertical interference stripes ar ...
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... The photocurrent characteristics of a diarylethene (DAE) film were investigated. The photocurrents were attributed to the dissociation of electric carriers from the excited molecules in the DAE film. We demonstrated the on-off property of the photocurrent according to the isomerization state. Result ...
... The photocurrent characteristics of a diarylethene (DAE) film were investigated. The photocurrents were attributed to the dissociation of electric carriers from the excited molecules in the DAE film. We demonstrated the on-off property of the photocurrent according to the isomerization state. Result ...
Electronic structure and spectroscopy
... approximate practical methods of applying quantum mechanics should be developed, which can lead to an explanation of the main features of complex atomic systems without too much ...
... approximate practical methods of applying quantum mechanics should be developed, which can lead to an explanation of the main features of complex atomic systems without too much ...
unit 12: rotational motion
... objects undergo circular motion and/or rotate while they move. The electron orbiting a proton in a hydrogen atom, an ice skater spinning, and a hammer which tumbles about while its centre-of-mass moves along a parabolic path are just three of many rotating objects. Since many objects undergo rotatio ...
... objects undergo circular motion and/or rotate while they move. The electron orbiting a proton in a hydrogen atom, an ice skater spinning, and a hammer which tumbles about while its centre-of-mass moves along a parabolic path are just three of many rotating objects. Since many objects undergo rotatio ...
Supporting Information For the discussion of the optical absorption
... Figure S4: the raw transmission spectra data of PTCDI-C8 / QT (2ML/2ML) hetero layers measured by the V570. The x-axes are (left) wavelength and (right) photon energy A very weak peak was observed around 2.45 eV. Forker et al. assigned this peak to the S0-S1 (HOMO-LUMO) transition. A strong absorpti ...
... Figure S4: the raw transmission spectra data of PTCDI-C8 / QT (2ML/2ML) hetero layers measured by the V570. The x-axes are (left) wavelength and (right) photon energy A very weak peak was observed around 2.45 eV. Forker et al. assigned this peak to the S0-S1 (HOMO-LUMO) transition. A strong absorpti ...
Size-dependent energy levels of CdTe quantum dots
... experimental data are within the estimation uncertainty. Energy splitting of J5 23 hole states depending on the orientation of the crystal can be evaluated by the known k-linear term.17 The evaluated splitting by the expression A6K l ( p /R) is 15 meV for R52.5 nm, where K l is the coefficient of th ...
... experimental data are within the estimation uncertainty. Energy splitting of J5 23 hole states depending on the orientation of the crystal can be evaluated by the known k-linear term.17 The evaluated splitting by the expression A6K l ( p /R) is 15 meV for R52.5 nm, where K l is the coefficient of th ...
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.