Synthesis and Characterization of Dendrimer Templated Supported
... 500 to 600 nm. This shoulder is consistent with the plasmon band arising from Au NPs larger than 2 nm.43,44 The bimetallic Pt16Au16 spectrum is generally similar to the spectrum of Pt32 and the Au-plasmon band around 530 is not present. There is also a very weak shoulder at around 600 nm that correl ...
... 500 to 600 nm. This shoulder is consistent with the plasmon band arising from Au NPs larger than 2 nm.43,44 The bimetallic Pt16Au16 spectrum is generally similar to the spectrum of Pt32 and the Au-plasmon band around 530 is not present. There is also a very weak shoulder at around 600 nm that correl ...
Vers un plan détaillé (début 08/11/01)
... is naturally introduced in the problem. This atom-wall interaction is an unvoidable feature in Cavity QED, a realm of Physics that has demonstrated the possibility of reversible exchanges of excitation between the cavity modes and the atom (see e.g. Haroche, 1992), or that permits such spectacular e ...
... is naturally introduced in the problem. This atom-wall interaction is an unvoidable feature in Cavity QED, a realm of Physics that has demonstrated the possibility of reversible exchanges of excitation between the cavity modes and the atom (see e.g. Haroche, 1992), or that permits such spectacular e ...
Optical Phonon Interacting with Electrons in Carbon Nanotubes
... part comparable or larger than the real part, meaning that the phonon has a finite life time due to spontaneous emission of an electron-hole pair. This width is qualitatively in agreement with that obtained previously.17) The effective Hamiltonian describing the electronphonon interaction shows that t ...
... part comparable or larger than the real part, meaning that the phonon has a finite life time due to spontaneous emission of an electron-hole pair. This width is qualitatively in agreement with that obtained previously.17) The effective Hamiltonian describing the electronphonon interaction shows that t ...
Determination of the water vapor continuum absorption by THz
... The techniques of FTIR and THz-TDS have been compared in previous work [3]. Although both of them have similar frequency resolution and comparable spectral S/N ratio. However, the gated and coherent detection of THz-TDS [18,19] can avoid the continuous thermal noise background, thereby giving a much ...
... The techniques of FTIR and THz-TDS have been compared in previous work [3]. Although both of them have similar frequency resolution and comparable spectral S/N ratio. However, the gated and coherent detection of THz-TDS [18,19] can avoid the continuous thermal noise background, thereby giving a much ...
Full Text - Verlag der Zeitschrift für Naturforschung
... cyclic derivatives may be feasible, if not with carbon possibly by isolobal replacement of one or more carbon atoms by one or more fragments B-R, where R is a bulky substituent. A typical example is the 1,2diboretane-3-ylidene 3a, of which several derivatives with bulky substituents at carbon and bo ...
... cyclic derivatives may be feasible, if not with carbon possibly by isolobal replacement of one or more carbon atoms by one or more fragments B-R, where R is a bulky substituent. A typical example is the 1,2diboretane-3-ylidene 3a, of which several derivatives with bulky substituents at carbon and bo ...
H2 Adsorption on 3d Transition Metal Clusters
... redistribution such that subsequent absorption of other photons is possible on the same transition. This process is facilitated by the high density of vibrational states.37 In principle, relaxation can occur by emitting photons, electrons, or by fragmentation.36 Electron emission and fragmentation l ...
... redistribution such that subsequent absorption of other photons is possible on the same transition. This process is facilitated by the high density of vibrational states.37 In principle, relaxation can occur by emitting photons, electrons, or by fragmentation.36 Electron emission and fragmentation l ...
Femtosecond powder diffraction with a laser-driven hard X
... 21. C. G. Ryan, E. J. Clayton, W. L. Griffin, S. H. Sie, and D. R. Cousens, “SNIP, a statistics-sensitive background treatment for the quantitative analysis of PIXE spectra in geoscience applications,” Nucl. Instrum. Methods B ...
... 21. C. G. Ryan, E. J. Clayton, W. L. Griffin, S. H. Sie, and D. R. Cousens, “SNIP, a statistics-sensitive background treatment for the quantitative analysis of PIXE spectra in geoscience applications,” Nucl. Instrum. Methods B ...
TDLS98AbBook
... is shortened and tends to be comparable with the wavelength of the absorbed radiation. This ‘caging‘ effect on the molecules progressively narrows their absorption line profile which, instead of being described by a Gauss function, is finally described by a Lorentz function when the gas pressure inc ...
... is shortened and tends to be comparable with the wavelength of the absorbed radiation. This ‘caging‘ effect on the molecules progressively narrows their absorption line profile which, instead of being described by a Gauss function, is finally described by a Lorentz function when the gas pressure inc ...
Optical Two-Dimensional Fourier Transform Spectroscopy of
... time-integrated, time-resolved, and spectrally-resolved FWM, have demonstrated that the many-body interactions among excitons and carriers dominate the nonlinear optical properties [2]. Phenomenological effects such as local field correction (LFC) [3], biexciton formation [4], excitation-induced dep ...
... time-integrated, time-resolved, and spectrally-resolved FWM, have demonstrated that the many-body interactions among excitons and carriers dominate the nonlinear optical properties [2]. Phenomenological effects such as local field correction (LFC) [3], biexciton formation [4], excitation-induced dep ...
Thesis-KM-oct11
... H37Cl isotopologues surpassing those previously used, such as line shifts. A mathematical model was developed to evaluate state interaction strengths from the relative intensity of Cl+/HCl+ ions and the interaction strengths of several states were calculated using both this new method and older meth ...
... H37Cl isotopologues surpassing those previously used, such as line shifts. A mathematical model was developed to evaluate state interaction strengths from the relative intensity of Cl+/HCl+ ions and the interaction strengths of several states were calculated using both this new method and older meth ...
Thesis-KM-oct11
... H37Cl isotopologues surpassing those previously used, such as line shifts. A mathematical model was developed to evaluate state interaction strengths from the relative intensity of Cl+/HCl+ ions and the interaction strengths of several states were calculated using both this new method and older meth ...
... H37Cl isotopologues surpassing those previously used, such as line shifts. A mathematical model was developed to evaluate state interaction strengths from the relative intensity of Cl+/HCl+ ions and the interaction strengths of several states were calculated using both this new method and older meth ...
1 CHAPTER 10 LINE PROFILES 10.1 Introduction. Spectrum lines
... In photographic days, the measurement of equivalent widths was a very laborious procedure, and, if one had good reason to believe that the line profiles in a spectrum were all lorentzian, the equivalent with would be found by measuring just the FWHm and the central depth. Even today, when equivalent ...
... In photographic days, the measurement of equivalent widths was a very laborious procedure, and, if one had good reason to believe that the line profiles in a spectrum were all lorentzian, the equivalent with would be found by measuring just the FWHm and the central depth. Even today, when equivalent ...
Multidimensional Vibrational Spectroscopy of Hydrogen Bonds in
... A hydrogen bond is a simple structural motif that consists of a donor and at least one acceptor atom, X and Y, between which a hydrogen atom is located: X–H· · · Y. The donor forms a covalent bond with the hydrogen atom whereas the interaction between the hydrogen atom and the acceptor is often cons ...
... A hydrogen bond is a simple structural motif that consists of a donor and at least one acceptor atom, X and Y, between which a hydrogen atom is located: X–H· · · Y. The donor forms a covalent bond with the hydrogen atom whereas the interaction between the hydrogen atom and the acceptor is often cons ...
Optical pumping studies of vibrational energy transfer
... achieved in the CO population distribution. While this distribution is highly non-Boltzmann, an effective vibrational temperature of T v ⫽3500⫾250 K can still be defined by considering the first two level populations, using Eq. 共7兲. The apparent relative populations range from f 0 ⫽0.4 for the groun ...
... achieved in the CO population distribution. While this distribution is highly non-Boltzmann, an effective vibrational temperature of T v ⫽3500⫾250 K can still be defined by considering the first two level populations, using Eq. 共7兲. The apparent relative populations range from f 0 ⫽0.4 for the groun ...
Electron paramagnetic resonance of photoexcited
... It has been nearly three years in Itoh group and would like to acknowledge most of the people who directly or indirectly contributed towards the completion of this thesis. I sincerely thank my supervisor Professor Kohei M. Itoh for giving me an oppertunity to pursue this work under his guidence and ...
... It has been nearly three years in Itoh group and would like to acknowledge most of the people who directly or indirectly contributed towards the completion of this thesis. I sincerely thank my supervisor Professor Kohei M. Itoh for giving me an oppertunity to pursue this work under his guidence and ...
Downloaded - Maynooth University ePrints and eTheses Archive
... displayed by the mercury(II) complexes of 3 was evident in other complexes. The reaction of 3 with either silver(I) perchlorate or zinc(II) perchlorate was carried out for two hours at both room temperature and at the reflux temperature of ethanol. The resulting white solids, obtained from each react ...
... displayed by the mercury(II) complexes of 3 was evident in other complexes. The reaction of 3 with either silver(I) perchlorate or zinc(II) perchlorate was carried out for two hours at both room temperature and at the reflux temperature of ethanol. The resulting white solids, obtained from each react ...
Role of hydroxyl groups for the O2 adsorption on CeO2 surface: A
... oxygen, effectively acting as oxygen buffers during the reaction. Ceria (CeO2) is one of the most efficient reducible oxides which represent very active catalytic supports due to its oxygen storage capacity [2]. Therefore, to obtain insight into CO oxidation on noble-metal/CeO2 is of great importance ...
... oxygen, effectively acting as oxygen buffers during the reaction. Ceria (CeO2) is one of the most efficient reducible oxides which represent very active catalytic supports due to its oxygen storage capacity [2]. Therefore, to obtain insight into CO oxidation on noble-metal/CeO2 is of great importance ...
Excited-State Intramolecular Proton Transfer in 3
... a yellow glass filter (Schott GG475/3 mm) and imaged onto the entrance slit of a streak camera (Hamamatsu C1370). A portion of the excitation pulse was split off and also brought to the entrance slit of the streak camera to provide each streak with a time reference. Individual streaks were digitized ...
... a yellow glass filter (Schott GG475/3 mm) and imaged onto the entrance slit of a streak camera (Hamamatsu C1370). A portion of the excitation pulse was split off and also brought to the entrance slit of the streak camera to provide each streak with a time reference. Individual streaks were digitized ...
298
... Species 1−6 are [MIII(L)2]ClO4 complexes formed with the PhO-−CHdN−CH2−Py imines, (LI)- and (LtBuI)-, and PhO-−CH2−NH−CH2−Py amines, (LA)- and (LtBuA)-, in which PhO- is a phenolate ring and Py is a pyridine ring and the prefix tBu indicates the presence of tertiary butyl groups occupying the positi ...
... Species 1−6 are [MIII(L)2]ClO4 complexes formed with the PhO-−CHdN−CH2−Py imines, (LI)- and (LtBuI)-, and PhO-−CH2−NH−CH2−Py amines, (LA)- and (LtBuA)-, in which PhO- is a phenolate ring and Py is a pyridine ring and the prefix tBu indicates the presence of tertiary butyl groups occupying the positi ...
Ru3(CO)12 Adsorption and Decomposition on TiO2
... from Ru3(CO)12 dissolved in hexane24 is also shown for comparison. The peaks are presented as-acquired with their relative peak intensities; each is labeled with its assigned symmetry, either A2′′ (for the vibrational mode fully axial with respect to the Ru3 plane) or E′ (for the equatorial vibratio ...
... from Ru3(CO)12 dissolved in hexane24 is also shown for comparison. The peaks are presented as-acquired with their relative peak intensities; each is labeled with its assigned symmetry, either A2′′ (for the vibrational mode fully axial with respect to the Ru3 plane) or E′ (for the equatorial vibratio ...
"Fundamentals of Electronic Spectroscopy" in
... ν̃ e = Te − Te , and each band of the system has its origin at ν̃ e + G − G , so that the origin of the band system is at ν̃ 00 = ν̃ e + G (0, 0, . . . , 0) − G (0, 0, . . . , 0). The hierarchy of motion upon which equations (1) and (2) rely implies that the energetic separation between ele ...
... ν̃ e = Te − Te , and each band of the system has its origin at ν̃ e + G − G , so that the origin of the band system is at ν̃ 00 = ν̃ e + G (0, 0, . . . , 0) − G (0, 0, . . . , 0). The hierarchy of motion upon which equations (1) and (2) rely implies that the energetic separation between ele ...
Multi-photon absorption and third-order
... ranged from 38 to 123 µm for different wavelengths. As shown, α3 and α4 present nonlinear absorption coefficients for 3PA and 4PA. The peak intensity I00 at the sample is determined as I00 = laser_power / [(πω02) × pulse_repetitions × pulse_width] × 40%, due to Fresnel reflection and back scattering ...
... ranged from 38 to 123 µm for different wavelengths. As shown, α3 and α4 present nonlinear absorption coefficients for 3PA and 4PA. The peak intensity I00 at the sample is determined as I00 = laser_power / [(πω02) × pulse_repetitions × pulse_width] × 40%, due to Fresnel reflection and back scattering ...
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 ...
Hyperfine Structure in the Rotational Spectrum of GaF: A
... The high-resolution pure rotational spectrum of GaF has been measured using a Balle–Flygare-type Fourier transform spectrometer. Improved nuclear quadrupolar coupling constants and rotational constants have been obtained along with the first reported fluorine spin–rotation constant for gallium fluor ...
... The high-resolution pure rotational spectrum of GaF has been measured using a Balle–Flygare-type Fourier transform spectrometer. Improved nuclear quadrupolar coupling constants and rotational constants have been obtained along with the first reported fluorine spin–rotation constant for gallium fluor ...
File - Physics Rocks
... spectrum is called a spectral line and represents one specific wavelength. © 2015 Pearson Education, Inc. ...
... spectrum is called a spectral line and represents one specific wavelength. © 2015 Pearson Education, Inc. ...
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.