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... level—16, 8, and 4 kcal/mol excess energy above the zeropoint level of the transition state. The trajectories were started at the transition state and the initial conditions were chosen to correspond to a microcanonical ensemble.37 The total angular momentum was set to zero. For the motion along the ...
... level—16, 8, and 4 kcal/mol excess energy above the zeropoint level of the transition state. The trajectories were started at the transition state and the initial conditions were chosen to correspond to a microcanonical ensemble.37 The total angular momentum was set to zero. For the motion along the ...
Observation of two-photon emission from semiconductors
... GaInP/AlGaInP two-photon emission, limited only by the detector’s temporal resolution. Two-photon transitions are much weaker than the related firstorder processes, so observations of multiphoton spontaneous decays have so far been restricted to a few atomic transition cases. In these instances the ...
... GaInP/AlGaInP two-photon emission, limited only by the detector’s temporal resolution. Two-photon transitions are much weaker than the related firstorder processes, so observations of multiphoton spontaneous decays have so far been restricted to a few atomic transition cases. In these instances the ...
Course : Chem 312F
... Examination of the theory courses of 100 marks (1.0 unit, 4 credit) shall be of 4 (four) hours' duration, and those of 50 marks (0.5 unit, 2 credit) shall be of 3 (three) hours' duration. The practical courses of 50 marks (0.5 unit, 2 credit) shall be of 12 (twelve) hours duration (2 days). Marks of ...
... Examination of the theory courses of 100 marks (1.0 unit, 4 credit) shall be of 4 (four) hours' duration, and those of 50 marks (0.5 unit, 2 credit) shall be of 3 (three) hours' duration. The practical courses of 50 marks (0.5 unit, 2 credit) shall be of 12 (twelve) hours duration (2 days). Marks of ...
Visible to near-infrared optical properties of pure synthetic olivine
... summarized briefly here. Olivine is an orthosilicate with a nearly hexagonally close-packed structure. It has a general formula of M1M2SiO4, where the cation sites (M1, M2) are six-coordinated (octahedral). The dominant (stoichiometric) divalent cations (Fe2+, Mg2+) occupy the octahedral cation site ...
... summarized briefly here. Olivine is an orthosilicate with a nearly hexagonally close-packed structure. It has a general formula of M1M2SiO4, where the cation sites (M1, M2) are six-coordinated (octahedral). The dominant (stoichiometric) divalent cations (Fe2+, Mg2+) occupy the octahedral cation site ...
A comparative analysis of two methods for the... of electric-field-induced perturbations to molecular vibration
... fundamental states, and (b) for the dipole moment function ,u(curv) =,uzP, see Eq. (5). In a previous publication4 one of us used this formula, but ignored all but the "ZP" terms in a(curv). Equation (34) may, in principle, be compared with the work of Duran and co-workers5 who used method B. Howeve ...
... fundamental states, and (b) for the dipole moment function ,u(curv) =,uzP, see Eq. (5). In a previous publication4 one of us used this formula, but ignored all but the "ZP" terms in a(curv). Equation (34) may, in principle, be compared with the work of Duran and co-workers5 who used method B. Howeve ...
Electroabsorption spectroscopy of effective-mass Al Ga As/GaAs Fibonacci superlattices
... way of designating the multiple critical points in the superlattice. Each gap will be bracketed between an M 1 -type critical point on the lower-energy side and an M 0 -type critical point on the higher-energy side, both of which will be indexed by a superscript identifying the gap. This provides an ...
... way of designating the multiple critical points in the superlattice. Each gap will be bracketed between an M 1 -type critical point on the lower-energy side and an M 0 -type critical point on the higher-energy side, both of which will be indexed by a superscript identifying the gap. This provides an ...
A Sequential Molecular Mechanics/Quantum Mechanics Study of the
... formamide21 and a smaller red-shift of ∼0.1 eV for Nmethylacetamide (NMA).25,35 The origin of the red-shift is considered largely electrostatic in nature. In formamide, the permanent dipole moment of the πnbπ* state is 6.1 D compared with 4.1 D in the ground state.24 Thus, the πnbπ* state has a more ...
... formamide21 and a smaller red-shift of ∼0.1 eV for Nmethylacetamide (NMA).25,35 The origin of the red-shift is considered largely electrostatic in nature. In formamide, the permanent dipole moment of the πnbπ* state is 6.1 D compared with 4.1 D in the ground state.24 Thus, the πnbπ* state has a more ...
PDF
... The most well-established method for inorganic microanalysis is probably EPMA (electron probe microanalysis), sometimes denoted as SEM-EDX (scanning electron microscopy equipped with an energy-dispersive X-ray detector); however, this method only provides information on the major elemental constitue ...
... The most well-established method for inorganic microanalysis is probably EPMA (electron probe microanalysis), sometimes denoted as SEM-EDX (scanning electron microscopy equipped with an energy-dispersive X-ray detector); however, this method only provides information on the major elemental constitue ...
chapter 2 photons and atoms
... intrinsic angular momentum (or spin)--- its polarization properties. • travels at the speed of light (in vacuum c0) ...
... intrinsic angular momentum (or spin)--- its polarization properties. • travels at the speed of light (in vacuum c0) ...
Quantum theory of ion-atom interactions
... on the analytic solutions for the long-range, −1/R4 , polarization potential. Ion-atom interactions, especially at cold temperatures of a few kelvin or lower, are complicated by the rapid energy variations induced by the long-range polarization potential, by the generally large number of contributin ...
... on the analytic solutions for the long-range, −1/R4 , polarization potential. Ion-atom interactions, especially at cold temperatures of a few kelvin or lower, are complicated by the rapid energy variations induced by the long-range polarization potential, by the generally large number of contributin ...
Measuring the complex orbital angular momentum spectrum of light
... well solved, since these aforementioned methods have some deficiencies, including being unable to identify the whole OAM spectrum coefficients simultaneously, being unable to work at the single photon level, and working with very low energy efficiency. Besides the intensity spectrum, it is also impo ...
... well solved, since these aforementioned methods have some deficiencies, including being unable to identify the whole OAM spectrum coefficients simultaneously, being unable to work at the single photon level, and working with very low energy efficiency. Besides the intensity spectrum, it is also impo ...
A Dissertation entitled Quantum Theory of Ion
... on the analytic solutions for the long-range, −1/R4 , polarization potential. Ion-atom interactions, especially at cold temperatures of a few kelvin or lower, are complicated by the rapid energy variations induced by the long-range polarization potential, by the generally large number of contributin ...
... on the analytic solutions for the long-range, −1/R4 , polarization potential. Ion-atom interactions, especially at cold temperatures of a few kelvin or lower, are complicated by the rapid energy variations induced by the long-range polarization potential, by the generally large number of contributin ...
Aberrations
... more common now to let the computer do these calculations. Note that the larger the actual angle of incidence of a ray on a surface, the greater the angular (and hence wavefront) deviation from paraxial optics will be. ...
... more common now to let the computer do these calculations. Note that the larger the actual angle of incidence of a ray on a surface, the greater the angular (and hence wavefront) deviation from paraxial optics will be. ...
"Global Analytical Potential Energy Surfaces for High
... Global Analytical PES for Molecular Spectroscopy and Reaction Dynamics this handbook). Despite the great advances made in computer technology since the early days of quantum mechanics, traditional ab initio calculations can yield only approximate values of electronic energies because many-electron ...
... Global Analytical PES for Molecular Spectroscopy and Reaction Dynamics this handbook). Despite the great advances made in computer technology since the early days of quantum mechanics, traditional ab initio calculations can yield only approximate values of electronic energies because many-electron ...
Supplementary Discussion - Word file
... -Oph 102 is measured, can be summarised as follows: 1. A simple script based on the IRAF task splot is used to determine the position of the continuum emission at different wavelengths. The Image Reduction and Analysis Facility (IRAF) is written and supported by the IRAF programming group at Nation ...
... -Oph 102 is measured, can be summarised as follows: 1. A simple script based on the IRAF task splot is used to determine the position of the continuum emission at different wavelengths. The Image Reduction and Analysis Facility (IRAF) is written and supported by the IRAF programming group at Nation ...
Laser-Assisted Dynamics on Metallic Surfaces using
... real-time electron dynamics on metallic surfaces. These studies are performed in pumpprobe geometries, where a pump pulse excites a dynamic process and a time-delayed probe monitors changes in the system. Furthermore, recent progress in ultrafast lasers and high-harmonic generation has opened up a n ...
... real-time electron dynamics on metallic surfaces. These studies are performed in pumpprobe geometries, where a pump pulse excites a dynamic process and a time-delayed probe monitors changes in the system. Furthermore, recent progress in ultrafast lasers and high-harmonic generation has opened up a n ...
Visible Light Generation of Iodine Atoms and I
... whose self-exchange rate constants are unusually small due to large internal reorganization energy changes imparted by spin and coordination number changes, respectively.26,27 The second explanation is that the TiO2(e-)s are good one electron reductants, perhaps best thought of as Ti(III) trap state ...
... whose self-exchange rate constants are unusually small due to large internal reorganization energy changes imparted by spin and coordination number changes, respectively.26,27 The second explanation is that the TiO2(e-)s are good one electron reductants, perhaps best thought of as Ti(III) trap state ...
Heterodynedetected timedomain measurement of I2 predissociation
... An understanding of the molecular mechanisms that produce broad and structureless electronic absorption spectra is central to studies of chemical dynamics in liquids and solutions. 1,2 Such broadening often reflects the perturbation of the electronic and nuclear degrees of freedom of the solute by t ...
... An understanding of the molecular mechanisms that produce broad and structureless electronic absorption spectra is central to studies of chemical dynamics in liquids and solutions. 1,2 Such broadening often reflects the perturbation of the electronic and nuclear degrees of freedom of the solute by t ...
Study of diatomic molecules under short intense laser pulses
... CKE for different pulses. The projections (singly differential probabilities) are shown at the left and at the top of each CKE spectrum. (a) Central frequency ω = 0.8 a.u. and pulse durations T = 0.76, 1.14, and 2.5 fs (left, middle, and right panels, respectively). (b) and (c) Central frequencies ω ...
... CKE for different pulses. The projections (singly differential probabilities) are shown at the left and at the top of each CKE spectrum. (a) Central frequency ω = 0.8 a.u. and pulse durations T = 0.76, 1.14, and 2.5 fs (left, middle, and right panels, respectively). (b) and (c) Central frequencies ω ...
Brock_Pirasteh_Sepiedeh_2012
... Gharetape et al. [15] reported the properties of LaV xO3. The crystal symmetry remains unchanged and free from impurity phases for LaV xO3 for 0.92 ≤ x ≤ 0.98. However, the lattice parameters of LaV xO3 increase by decreasing x from 1 to 0.92 accompanied by multiple oxidation states of vanadium of V ...
... Gharetape et al. [15] reported the properties of LaV xO3. The crystal symmetry remains unchanged and free from impurity phases for LaV xO3 for 0.92 ≤ x ≤ 0.98. However, the lattice parameters of LaV xO3 increase by decreasing x from 1 to 0.92 accompanied by multiple oxidation states of vanadium of V ...
Splitting of Micro-Cavity Degenerate Modes in Rotating Ph
... We feel, however, that before turning to the theoretical study, a brief description of the differences between our work and the classical analysis of Sagnac effect is in order. The simplest and most familiar example of an optical resonator with degenerate modes is the closed loop or ring structure mad ...
... We feel, however, that before turning to the theoretical study, a brief description of the differences between our work and the classical analysis of Sagnac effect is in order. The simplest and most familiar example of an optical resonator with degenerate modes is the closed loop or ring structure mad ...
Chapter 36 . Optical Properties of Semiconductors
... The optical properties of semiconductors are often subdivided into those that are electronic and those that are lattice in nature. The electronic properties concern processes involving the electronic states of the semiconductor, while the lattice properties involve vibrations of the lattice (absorpt ...
... The optical properties of semiconductors are often subdivided into those that are electronic and those that are lattice in nature. The electronic properties concern processes involving the electronic states of the semiconductor, while the lattice properties involve vibrations of the lattice (absorpt ...
Structural and optical properties of visible active
... which is related to crystal structure and surface morphology. WO3 exists in several phases, which differ with respect to each other by the tilting and displacement of the atoms in the octahedral building blocks that comprise the WO3 structure. The thermodynamically favored phase is reported to chang ...
... which is related to crystal structure and surface morphology. WO3 exists in several phases, which differ with respect to each other by the tilting and displacement of the atoms in the octahedral building blocks that comprise the WO3 structure. The thermodynamically favored phase is reported to chang ...
Active semiconductor-based grating waveguide structures
... smaller compared to forward voltage configurations since the depletion region width decreases as the doping (and the free charge carriers concentration) increases. Therefore, the dependence of the refractive index change on the variation in charge carriers concentration is weaker in these configurat ...
... smaller compared to forward voltage configurations since the depletion region width decreases as the doping (and the free charge carriers concentration) increases. Therefore, the dependence of the refractive index change on the variation in charge carriers concentration is weaker in these configurat ...
EBSD SEM TEM
... When the radiation from the probe source strikes on the sample, interaction with the matter occurs. This interaction is measured and reveals the characteristics of the microstructure. Of course the intention is to obtain maximum information with the least amount of damage to the sample . A general r ...
... When the radiation from the probe source strikes on the sample, interaction with the matter occurs. This interaction is measured and reveals the characteristics of the microstructure. Of course the intention is to obtain maximum information with the least amount of damage to the sample . A general r ...
Mössbauer spectroscopy
Mössbauer spectroscopy is a spectroscopic technique based on the Mössbauer effect. This effect, discovered by Rudolf Mössbauer in 1957, consists in the recoil-free, resonant absorption and emission of gamma rays in solids.Like NMR spectroscopy, Mössbauer spectroscopy probes tiny changes in the energy levels of an atomic nucleus in response to its environment. Typically, three types of nuclear interactions may be observed: an isomeric shift, also known as a chemical shift; quadrupole splitting; and magnetic or hyperfine splitting, also known as the Zeeman effect. Due to the high energy and extremely narrow line widths of gamma rays, Mössbauer spectroscopy is a very sensitive technique in terms of energy (and hence frequency) resolution, capable of detecting change in just a few parts per 1011.