Strong quantum confinement effects in SnS nanocrystals produced
... fabrication of large numbers of nanoparticles, lower cost, and possibility of using high purity starting materials. In this paper we also report the morphological, optical and structural properties of SnS nanocrystals. As our results indicate, the absorption edge is shifted towards the lower wavelen ...
... fabrication of large numbers of nanoparticles, lower cost, and possibility of using high purity starting materials. In this paper we also report the morphological, optical and structural properties of SnS nanocrystals. As our results indicate, the absorption edge is shifted towards the lower wavelen ...
Computer simulation by quantum mechanical time dependent wave
... (b) Boundary condition has to be chosen. Large enough subspace has to be chosen in order to the wave function should become zero at boundary points under the whole physical process. If it is not realizable - e.g. because of the computer memory is out of – absorbing [60][62] or cutting techniques [93 ...
... (b) Boundary condition has to be chosen. Large enough subspace has to be chosen in order to the wave function should become zero at boundary points under the whole physical process. If it is not realizable - e.g. because of the computer memory is out of – absorbing [60][62] or cutting techniques [93 ...
g - Haiku
... kinetic energy by the time the ball strikes the ground, what is the ball’s speed just before it hits the ground? (Note: The force due to gravity is F = m × g, where m is the mass of the object and g is the gravitational constant; g = 9.8 m ⁄ s2.) ...
... kinetic energy by the time the ball strikes the ground, what is the ball’s speed just before it hits the ground? (Note: The force due to gravity is F = m × g, where m is the mass of the object and g is the gravitational constant; g = 9.8 m ⁄ s2.) ...
Metal-optic and Plasmonic Semiconductor
... Over the past few decades, semiconductor lasers have relentlessly followed the path towards miniaturization. Smaller lasers are more energy efficient, are cheaper to make, and open up new applications in sensing and displays, among many other things. Yet, up until recently, there was a fundamental p ...
... Over the past few decades, semiconductor lasers have relentlessly followed the path towards miniaturization. Smaller lasers are more energy efficient, are cheaper to make, and open up new applications in sensing and displays, among many other things. Yet, up until recently, there was a fundamental p ...
ChemistryPPT
... 4. The size of a magnesium ion with a 2+ charge can be compared with that of a sodium ion with a single + charge. A 2+ charge means the atom has lost 2 electrons. A single + charge means the atom has lost 1 electron. A 2+ atom (ion) is smaller than a (1)+ atom (ion). ...
... 4. The size of a magnesium ion with a 2+ charge can be compared with that of a sodium ion with a single + charge. A 2+ charge means the atom has lost 2 electrons. A single + charge means the atom has lost 1 electron. A 2+ atom (ion) is smaller than a (1)+ atom (ion). ...
On geometric optics and surface waves for light scattering by spheres
... which is particularly useful for the calculation of extinction and absorption cross sections for hexagonal ice crystals with size parameters as small as 15. More recently, ‘‘exact’’ equations for the computations of Snell’s refraction angle and Fresnel’s coefficients have been derived [14,15] for la ...
... which is particularly useful for the calculation of extinction and absorption cross sections for hexagonal ice crystals with size parameters as small as 15. More recently, ‘‘exact’’ equations for the computations of Snell’s refraction angle and Fresnel’s coefficients have been derived [14,15] for la ...
Violation of Heisenberg’s Measurement-Disturbance Relationship by Weak Measurements
... later, it may also change the state in such a way that the right-hand side (RHS) of Heisenberg’s inequality is modified as well. Because of these difficulties the disturbance, as described here, has been claimed to be experimentally inaccessible [16]. A recent experiment has indirectly tested Ozawa’ ...
... later, it may also change the state in such a way that the right-hand side (RHS) of Heisenberg’s inequality is modified as well. Because of these difficulties the disturbance, as described here, has been claimed to be experimentally inaccessible [16]. A recent experiment has indirectly tested Ozawa’ ...
EOCT Physical Science Study Guide August 2008
... booklet. Remember that only the answers marked on your answer sheet will be scored. Read the entire question and the possible answer choices. It is important to read the entire question so you know what it is asking. Read each possible answer choice. Do not mark the first one that “looks good.” Use ...
... booklet. Remember that only the answers marked on your answer sheet will be scored. Read the entire question and the possible answer choices. It is important to read the entire question so you know what it is asking. Read each possible answer choice. Do not mark the first one that “looks good.” Use ...
Background Material
... we showed how the particle-in-a-sphere radial functions can be expressed in terms of spherical Bessel functions. In addition, the pattern of energy levels, which was shown in Chapter 1 to be related to the values of x at which the spherical Bessel functions jL(x) vanish, are not the same as in atoms ...
... we showed how the particle-in-a-sphere radial functions can be expressed in terms of spherical Bessel functions. In addition, the pattern of energy levels, which was shown in Chapter 1 to be related to the values of x at which the spherical Bessel functions jL(x) vanish, are not the same as in atoms ...
Quantum effects in energy and charge transfer in an
... where ωμν = E μ − E ν , and the heat-bath operator Aμν is defined in Eq. (7). Here, we use the fact that the Hamiltonian H in Eq. (6) is also expressed in terms of the operators ρμν taken at the same moment of time t. For two of these operators, ρμν (t) and ραβ (t), we have simple multiplication rul ...
... where ωμν = E μ − E ν , and the heat-bath operator Aμν is defined in Eq. (7). Here, we use the fact that the Hamiltonian H in Eq. (6) is also expressed in terms of the operators ρμν taken at the same moment of time t. For two of these operators, ρμν (t) and ραβ (t), we have simple multiplication rul ...
THE SYMMETRY GROUP PARADOX FOR NON
... an irreducible representation of the symmetry group [1]. In cases where the Hamiltonian changes to one whose symmetry group is just a subgroup of the original one, the degenerate energy eigenvectors for the original Hamiltonian are then the basis for a representation of the new and smaller symmet ...
... an irreducible representation of the symmetry group [1]. In cases where the Hamiltonian changes to one whose symmetry group is just a subgroup of the original one, the degenerate energy eigenvectors for the original Hamiltonian are then the basis for a representation of the new and smaller symmet ...
Sulfur and iron surface states on fractured pyrite surfaces
... Pyrite has a poor {001} cleavage. Unlike most other minerals with a rocksalt-type structure, pyrite typically fractures conchoidally, demonstrating that parting surfaces are not constrained to the {001} crystallographic plane. Cleavage along {001} require rupture of only Fe-S bonds, but pyrite consi ...
... Pyrite has a poor {001} cleavage. Unlike most other minerals with a rocksalt-type structure, pyrite typically fractures conchoidally, demonstrating that parting surfaces are not constrained to the {001} crystallographic plane. Cleavage along {001} require rupture of only Fe-S bonds, but pyrite consi ...
High-Q Microresonators as Lasing Elements for Silicon Photonics
... precision and depth of their teachings on the subject. As part of the EPIC program, Axel Scherer provided us with essential materials and processing capabilities, and Eli Yablonovitch gave us unwavering encouragement and insightful advice on the complex nature of silicon surfaces. I also thank Joe S ...
... precision and depth of their teachings on the subject. As part of the EPIC program, Axel Scherer provided us with essential materials and processing capabilities, and Eli Yablonovitch gave us unwavering encouragement and insightful advice on the complex nature of silicon surfaces. I also thank Joe S ...
Subwavelength transportation of light with atomic resonances
... optics can be explored [1–5]. This new interdisciplinary toolbox ranging from atomic physics and quantum optics to nanophotonics opens a new door to investigate a wide range of remarkable phenomena such as the coherent transportation of photons emitted from an atom [6,7] and atomic mirrors [8]. In t ...
... optics can be explored [1–5]. This new interdisciplinary toolbox ranging from atomic physics and quantum optics to nanophotonics opens a new door to investigate a wide range of remarkable phenomena such as the coherent transportation of photons emitted from an atom [6,7] and atomic mirrors [8]. In t ...
____ 1. The energy required to convert a ground
... decreasing. b. The solid and liquid phases coexist in e. The temperature of the substance is ...
... decreasing. b. The solid and liquid phases coexist in e. The temperature of the substance is ...
1. Introduction - About the journal
... It is evident from Fig. 5 that with decreasing scintillation index (link distance decreasing below 5 km) the difference between both approximations decreases. Although there are a few optical wavelengths suitable for transmission through the atmosphere, FSO designers usually use near-IR spectral win ...
... It is evident from Fig. 5 that with decreasing scintillation index (link distance decreasing below 5 km) the difference between both approximations decreases. Although there are a few optical wavelengths suitable for transmission through the atmosphere, FSO designers usually use near-IR spectral win ...
Chapter 10 Chemical Bonding Theories
... Bonds form using shared electrons between overlapping orbitals on adjacent atoms. Orbitals arrange around central atom to avoid each other. Two types of bonds: sigma and pi. ...
... Bonds form using shared electrons between overlapping orbitals on adjacent atoms. Orbitals arrange around central atom to avoid each other. Two types of bonds: sigma and pi. ...
Adaptive Speckle Imaging Interferometry, a new technique for a
... ensemble of photon paths. This condition is normally met, since the scatterers move substantially and explore a significant fraction of all possible configurations during the measurement time. Thus time and ensemble averages are equivalent, a condition referred to as ergodicity. In other words, if t ...
... ensemble of photon paths. This condition is normally met, since the scatterers move substantially and explore a significant fraction of all possible configurations during the measurement time. Thus time and ensemble averages are equivalent, a condition referred to as ergodicity. In other words, if t ...
Electrical conductivity of polycrystalline Mg(OH)
... The brucite powder was kept in contact with air after the hydrothermal synthesis without applying any specific drying treatment. TGA data (Fig. 1) shows that about 18 wt% of H2O is removed from the sample below 373 K (‘evaporable water’). Part of this ‘evaporable water’ is expected to ‘feed’ the sam ...
... The brucite powder was kept in contact with air after the hydrothermal synthesis without applying any specific drying treatment. TGA data (Fig. 1) shows that about 18 wt% of H2O is removed from the sample below 373 K (‘evaporable water’). Part of this ‘evaporable water’ is expected to ‘feed’ the sam ...
Chapter 2. Model Problems That Form Important Starting Points
... Chapter 1 to be related to the values of x at which the spherical Bessel functions jL(x) vanish, are not the same as in atoms, again because the radial potentials differ. However, the angular shapes of the spherical box problem are the same as in atomic structure because, in both cases, the potentia ...
... Chapter 1 to be related to the values of x at which the spherical Bessel functions jL(x) vanish, are not the same as in atoms, again because the radial potentials differ. However, the angular shapes of the spherical box problem are the same as in atomic structure because, in both cases, the potentia ...
X-ray fluorescence
X-ray fluorescence (XRF) is the emission of characteristic ""secondary"" (or fluorescent) X-rays from a material that has been excited by bombarding with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic science and archaeology.