High-Power Diode Lasers under External Optical Feedback
... A reduction of the laser threshold by 20 percent caused by the presence of external feedback has been reported by Takiguchi et al. [5] for 808 nm emitting devices. Hempel et al. [8] reported an emission power increase by 2.3 percent for other 808 nm emitting devices, which have originally been desig ...
... A reduction of the laser threshold by 20 percent caused by the presence of external feedback has been reported by Takiguchi et al. [5] for 808 nm emitting devices. Hempel et al. [8] reported an emission power increase by 2.3 percent for other 808 nm emitting devices, which have originally been desig ...
EXPLORING THE MAGNETIC PHASES IN DYSPROSIUM
... 17. The schematic of a typical triple-axis spectrometer. .............................................................. 44 18. The raw data of the neutron diffraction scans along the c-axis of the 163Dy crystal at various temperatures with the field of 1 T applied along the a-axis. ................. ...
... 17. The schematic of a typical triple-axis spectrometer. .............................................................. 44 18. The raw data of the neutron diffraction scans along the c-axis of the 163Dy crystal at various temperatures with the field of 1 T applied along the a-axis. ................. ...
Improvement of light quality by DBR structure in white LED
... photons. The 3.5 and 5.5 pairs of DBR structures have a very high reflectance around 450nm region and much lower yellow reflection across different angles. This difference leads to the serious reduction of blue rays in the normal direction and thus lowers the CCT at the center in the Fig. 5(a). Mean ...
... photons. The 3.5 and 5.5 pairs of DBR structures have a very high reflectance around 450nm region and much lower yellow reflection across different angles. This difference leads to the serious reduction of blue rays in the normal direction and thus lowers the CCT at the center in the Fig. 5(a). Mean ...
ChemQuest 1 Information: Qualitative vs. Quantitative Critical
... tables. No, there is nothing from the table that is in both categories. 8. Is it always possible to identify something as an element, compound, pure substance or mixture just by looking at it? Explain using examples from the tables. No, some things look the same, but are not the same at the microsco ...
... tables. No, there is nothing from the table that is in both categories. 8. Is it always possible to identify something as an element, compound, pure substance or mixture just by looking at it? Explain using examples from the tables. No, some things look the same, but are not the same at the microsco ...
Particle sizing calibration with refractive index correction for light
... Particle sizing is only one aspect of the function of an OPC. The other is particle concentration measurement. Although this work does not deal directly with this aspect of calibration, it is useful to consider some of the problems which may be encountered with the data presented here. For a closed ...
... Particle sizing is only one aspect of the function of an OPC. The other is particle concentration measurement. Although this work does not deal directly with this aspect of calibration, it is useful to consider some of the problems which may be encountered with the data presented here. For a closed ...
Long-time behavior of nuclear spin decays in various lattices
... the memory function should be no slower than exponential. If it were slower than exponential (e.g., power law), then the asymptotic FID behavior would also exhibit a power law decay rather than (1). To the best of our knowledge, the theory of Borkmans and Walgraef has never been applied to solid ech ...
... the memory function should be no slower than exponential. If it were slower than exponential (e.g., power law), then the asymptotic FID behavior would also exhibit a power law decay rather than (1). To the best of our knowledge, the theory of Borkmans and Walgraef has never been applied to solid ech ...
Introductory Quantum Optics
... still use: representations, quantum-state evolution, unitary transformations, perturbation theory and more. The intrinsic probabilistic nature of quantum mechanics was uncovered by Max Born, who proposed the idea of probability amplitudes which allowed a fully quantum treatment of interference. Ferm ...
... still use: representations, quantum-state evolution, unitary transformations, perturbation theory and more. The intrinsic probabilistic nature of quantum mechanics was uncovered by Max Born, who proposed the idea of probability amplitudes which allowed a fully quantum treatment of interference. Ferm ...
Multidimensional Vibrational Spectroscopy of Hydrogen Bonds in
... donor forms a covalent bond with the hydrogen atom whereas the interaction between the hydrogen atom and the acceptor is often considerably weaker∗ [1]. Despite its simplicity, the relevance of hydrogen bonds in nature can hardly be overestimated. It is a unique interaction that is strong enough to ...
... donor forms a covalent bond with the hydrogen atom whereas the interaction between the hydrogen atom and the acceptor is often considerably weaker∗ [1]. Despite its simplicity, the relevance of hydrogen bonds in nature can hardly be overestimated. It is a unique interaction that is strong enough to ...
Optical pumping studies of vibrational energy transfer
... Knowledge of detailed nonequilibrium vibrational kinetics of diatomic molecules is essential for accurate prediction of behavior of low-temperature molecular plasmas for a wide variety of practical applications, including gas discharges, plasma chemical reactors, molecular lasers, upper atmosphere c ...
... Knowledge of detailed nonequilibrium vibrational kinetics of diatomic molecules is essential for accurate prediction of behavior of low-temperature molecular plasmas for a wide variety of practical applications, including gas discharges, plasma chemical reactors, molecular lasers, upper atmosphere c ...
Practice Question
... During the time that the test is available, you may take it anytime you wish and as many times as you want. Only the last submission will be saved and graded. I made it available for more time than I originally noted in the syllabus. The only reason I did this was because I assume most of you may wa ...
... During the time that the test is available, you may take it anytime you wish and as many times as you want. Only the last submission will be saved and graded. I made it available for more time than I originally noted in the syllabus. The only reason I did this was because I assume most of you may wa ...
Quantum States of Neutrons in the Gravitational Field
... reactions in the fuel material, the other part is piped through neutron guides towards the instrumentation halls surrounding the reactor building. Having energies around 25 meV, corresponding to wavelengths of approximately 2 Å, these neutrons are mainly used in scattering experiments of solid stat ...
... reactions in the fuel material, the other part is piped through neutron guides towards the instrumentation halls surrounding the reactor building. Having energies around 25 meV, corresponding to wavelengths of approximately 2 Å, these neutrons are mainly used in scattering experiments of solid stat ...
Laser cooling and trapping of atoms
... atomic motion must also include a “random walk” component. This can be described as a diffusion of the atomic momenta in momentum space, similar to Brownian motion in real space. The evolution of the momentum distribution in such circumstances is described by the FokkerPlanckequation, and it can be ...
... atomic motion must also include a “random walk” component. This can be described as a diffusion of the atomic momenta in momentum space, similar to Brownian motion in real space. The evolution of the momentum distribution in such circumstances is described by the FokkerPlanckequation, and it can be ...
High-resolution laser spectroscopy and Zeeman effect of nitrate radical
... Dinitrogen pentoxide (N2O5) was employed as a precursor of the NO3, and the NO3 was generated by the pyrolysis reaction of the N2O5: N2O5 → NO3 + NO2 after jet-expanding the mixture of N2O5 vapor and helium gas into a high-vacuum chamber through a pulsed nozzle. The sample gas was shaped into a mole ...
... Dinitrogen pentoxide (N2O5) was employed as a precursor of the NO3, and the NO3 was generated by the pyrolysis reaction of the N2O5: N2O5 → NO3 + NO2 after jet-expanding the mixture of N2O5 vapor and helium gas into a high-vacuum chamber through a pulsed nozzle. The sample gas was shaped into a mole ...
Manifestation and Origin of the Isotope Effect
... stronger, it would have pulled the nucleons in different nuclei together into a single unit and destroy all the atomic structure we are familiar with. In fact, nuclear force has a very short distance. As we know at present time, only three particles, the proton, the electron and the photon, are stab ...
... stronger, it would have pulled the nucleons in different nuclei together into a single unit and destroy all the atomic structure we are familiar with. In fact, nuclear force has a very short distance. As we know at present time, only three particles, the proton, the electron and the photon, are stab ...
Simulations of prompt many-body ionization in a frozen Rydberg gas Robicheaux
... In Fig. 1, we plot the fraction of atoms ionized versus the separation of atoms for different number of atoms. The solid line is for a pair of atoms. We can compare this result to that reported in Ref. [2] by multiplying the curve in Fig. 1 by a factor of 2 because the fraction of trajectories leadi ...
... In Fig. 1, we plot the fraction of atoms ionized versus the separation of atoms for different number of atoms. The solid line is for a pair of atoms. We can compare this result to that reported in Ref. [2] by multiplying the curve in Fig. 1 by a factor of 2 because the fraction of trajectories leadi ...
Review Sheet on Determining Term Symbols
... magnetic properties of molecules. We will concentrate on the method of Douglas and McDaniel (p. 26ff); however, you may find other treatments equal or superior to the D & M method. Term symbols are a shorthand method used to describe the energy, angular momentum, and spin multiplicity of an atom in ...
... magnetic properties of molecules. We will concentrate on the method of Douglas and McDaniel (p. 26ff); however, you may find other treatments equal or superior to the D & M method. Term symbols are a shorthand method used to describe the energy, angular momentum, and spin multiplicity of an atom in ...
Elements of Quantum Gases: Thermodynamic and Collisional
... condition of the con…nement volume su¢ ces to calculate the energy of interaction between the atoms. Once this is digested the concept of pseudo potential is introduced enabling the calculation of the interaction energy by …rst-order perturbation theory. More importantly it enables insight in how th ...
... condition of the con…nement volume su¢ ces to calculate the energy of interaction between the atoms. Once this is digested the concept of pseudo potential is introduced enabling the calculation of the interaction energy by …rst-order perturbation theory. More importantly it enables insight in how th ...
MEMS Based Heavy Metal Detector Inas Raafat Ramsis
... I would like to express my deep appreciation for The Youssef Jameel Science and Technology Research Center (YJ-STRC) that has provided me with financial support and state-of-the-art equipment to conduct this work. At last but not least I would like to express my warm appreciation for my family becau ...
... I would like to express my deep appreciation for The Youssef Jameel Science and Technology Research Center (YJ-STRC) that has provided me with financial support and state-of-the-art equipment to conduct this work. At last but not least I would like to express my warm appreciation for my family becau ...
Study Material - Class- XI- Chemistry
... definite proportion by mass, which could be split by suitable chemical methods. Characteristics of compound Compounds always contain a definite proportion of the same elements by mass. The properties of compounds are totally different from the elements from which they are formed. Compounds are ...
... definite proportion by mass, which could be split by suitable chemical methods. Characteristics of compound Compounds always contain a definite proportion of the same elements by mass. The properties of compounds are totally different from the elements from which they are formed. Compounds are ...
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.