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Supplemental Materials
Supplemental Materials

... between nearest neighbors.  is the lattice constant of graphene.  ≈ 0.4  is the interlayer hopping parameter between  and  . We ignore other hopping processes due to their relatively weak strengths. The diagonal items ± come from the potential bias between the two graphene-layers. Diagonal ...
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Ultrafast Optical Parametric Chirped

Quantum Mechanics Course essay Quantum mechanics Origins of
Quantum Mechanics Course essay Quantum mechanics Origins of

... • Photon of frequency f has energy hf • Red light made of ONLY red photons • The intensity of the beam can be increased by increasing the number of photons/second. • Photons/second = energy/second = power Interaction with matter • Photons interact with matter one at a time. • Energy transferred from ...
Modern Physics: Quantum Mechanics
Modern Physics: Quantum Mechanics

... 1 electron-volt = 1 eV = |charge on electron|x (1 volt) = (1.602x10-19 C)x(1 volt) 1 eV = 1.602x10-19 J In these units, E(1 photon green) = (4x10-19 J)x(1 eV / 1.602x10-19 J) = 2.5 eV Phy107 Fall 2006 ...
Diode pumped distributed Bragg reflector lasers
Diode pumped distributed Bragg reflector lasers

... substrates to form films ~100 nm thick. We find that we can form good quality films for a wide range of blend ratios, even at near equal weights. Figure 1(a) shows the absorption of solid-state blends of various weight fractions of Coumarin 102, plus the absorption of the dye in chlorobenzene soluti ...
Magnetic Resonance Imaging
Magnetic Resonance Imaging

... typical medical applications the support of ρ is much larger in one dimension than the others and so it turns out to be impractical to use the simple data collection technique described above. Instead the RF-excitation takes place in the presence of non-trivial gradient fields, which allows for a sp ...
Spectroscopy of Atoms and Molecules
Spectroscopy of Atoms and Molecules

... electronic behavior of an atom. It is found that useful probes of this behavior are the photons of light which interact with an atom. If an interacting photon’s energy matches that of an electronic transition within the atom, the photon can be absorbed. Conversely, an electronically excited atom can ...
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workshop on laser-matter interaction 2010
workshop on laser-matter interaction 2010

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Introducing Photochemistry

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... spectrum, u  v  cn , where cn = c/n and n is the index of refraction of the medium.. In certain cases either u or v or both may be greater than cn; however when ucn, it can no longer be interpreted as the velocity with which energy propagates, i.e., the simple analysis given above no longer holds ...
Photoelectric Effect Lab
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Introduction The acronym LASER, which stands for light

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X-ray photoelectron spectroscopy - An introduction

Visible Spectroscopy
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... differences between shells and energy levels in the quantum theory model of the atom. Typically it is valence electrons that are involved in these jumps. Atoms have two kinds of states; a ground state and an excited state. The ground state is the state in which the electrons in the atom are in their ...
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syllabus

Steady State Simulation of Semiconductor Optical Amplifier
Steady State Simulation of Semiconductor Optical Amplifier

... • A schematic diagram of a basic SOA is shown in Fig. (A). • The active region in the device imparts gain to an input signal. • An external electric current provides the energy source that enables gain to take place. ...
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Extended-cavity tapered lasers with volume Bragg gratings at 810

...  T < 100 μK (G ~ 1 MHz) Laser cooled atomic gases ...
Abstract - nanopia 2015
Abstract - nanopia 2015

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The Nature of Light - Solar Physics and Space Weather
The Nature of Light - Solar Physics and Space Weather

Quantum Chemistry and Spectroscopy
Quantum Chemistry and Spectroscopy

... spaced peaks. The spectra are almost mirror images of each other and emission spectra is higher in energy. The spectra is easy to understand with the energy level diagrams. In the example below the potentials are slightly off-set so the 0 -> 4 peak is more probable. Once the system is at the excited ...
WEEK 2: 4 S
WEEK 2: 4 S

... -----------------------------------------------------------------------------------------------------------------------5A. Which of the following electron transitions in a hydrogen atom will emit a photon, which absorb a photon? (How do you know?) A. n = 1 to n = 3 B. n = 4 to n = 3 C. n = 3 to n = ...
Manipulating and Measuring the Quantum State of Photons and Atoms
Manipulating and Measuring the Quantum State of Photons and Atoms

... KLM Nature 409, 46, (2001); Cf. experiments by Franson et al., White et al., ... ...
Spectroscopy - Universität Wien
Spectroscopy - Universität Wien

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Ultrafast laser spectroscopy

Ultrafast laser spectroscopy is a spectroscopic technique that uses ultrashort pulse lasers for the study of dynamics on extremely short time scales (attoseconds to nanoseconds). Different methods are used to examine dynamics of charge carriers, atoms and molecules. Many different procedures have been developed spanning different time scales and photon energy ranges; some common methods are listed below.
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