Optical Properties of Condensed Matters
... typical example is the ruby crystal. Rubies consist of Cr+3 ions doped into Al2O3. In the natural crystals, the Cr+3 ions are present as impurities, but in synthetic crystals, the dopants are deliberately introduced in controlled quantities during the crystal growth process. ...
... typical example is the ruby crystal. Rubies consist of Cr+3 ions doped into Al2O3. In the natural crystals, the Cr+3 ions are present as impurities, but in synthetic crystals, the dopants are deliberately introduced in controlled quantities during the crystal growth process. ...
03 Introduction to Energy Levels in Atoms - KSU Physics
... of a substance that possess the same physical and chemical properties of the substance. Unfortunately, atoms are too small to see so we will use experimental observations in addition to computer simulations to build an atomic model of light emission. Although the atom is very small, it has a definit ...
... of a substance that possess the same physical and chemical properties of the substance. Unfortunately, atoms are too small to see so we will use experimental observations in addition to computer simulations to build an atomic model of light emission. Although the atom is very small, it has a definit ...
Electromagnetically induced transparency
... The concept of EIT was first given by Harris et al in 1990. When a strong coupling laser field is used to drive a resonant transition in a three-level atomic system, the absorption of a weak probe laser field can be reduced or eliminated provided the two resonant transitions are coherently coupled t ...
... The concept of EIT was first given by Harris et al in 1990. When a strong coupling laser field is used to drive a resonant transition in a three-level atomic system, the absorption of a weak probe laser field can be reduced or eliminated provided the two resonant transitions are coherently coupled t ...
THE PHOTOELECTRIC EFFECT
... The phototube uses an emitter made of potassium metal. The accepted value for the work function of potassium is 2.24 eV, but there are other sources of voltage in the experiment, such as contact potentials of dissimilar metals, that may distort this value. The collector is a circular wire constructe ...
... The phototube uses an emitter made of potassium metal. The accepted value for the work function of potassium is 2.24 eV, but there are other sources of voltage in the experiment, such as contact potentials of dissimilar metals, that may distort this value. The collector is a circular wire constructe ...
X-ray diffraction techniques X
... radiation. These include Raman and Compton scattering. 7. Coherent or resonance spectroscopy are techniques where the radiative energy couples two quantum states of the material in a coherent interaction that is sustained by the radiating field. The coherence can be disrupted by other interactions, ...
... radiation. These include Raman and Compton scattering. 7. Coherent or resonance spectroscopy are techniques where the radiative energy couples two quantum states of the material in a coherent interaction that is sustained by the radiating field. The coherence can be disrupted by other interactions, ...
a three-dimensional outer mangetosphereric model for gamma
... inside of the gap X-ray field (Zhang & Cheng 1997); heated polar cap model of the primary particles ...
... inside of the gap X-ray field (Zhang & Cheng 1997); heated polar cap model of the primary particles ...
Chapter8_notes
... • Line widths due to pressure broadening are two to three orders of magnitude greater than natural line widths (10-2 Å to 10-1 Å). ...
... • Line widths due to pressure broadening are two to three orders of magnitude greater than natural line widths (10-2 Å to 10-1 Å). ...
E2 Rev
... homework also. I will provide the activity series. You should know solubility rules 1-3 and any equations we have discussed (the Bohr equation will be provided). I will also provide any necessary constants. Exam covers material in textbook sections 3.5 (only material not covered in exam 1), 4.1 – 4. ...
... homework also. I will provide the activity series. You should know solubility rules 1-3 and any equations we have discussed (the Bohr equation will be provided). I will also provide any necessary constants. Exam covers material in textbook sections 3.5 (only material not covered in exam 1), 4.1 – 4. ...
Optical Sources
... This region is depleted of most carriers A photon generates an electron-hole pair in this region that moves rapidly at the drift velocity by the electric field An electron-hole pair generated outside the depletion region they move by diffusion at a much slower rate Junction is typically reversed bia ...
... This region is depleted of most carriers A photon generates an electron-hole pair in this region that moves rapidly at the drift velocity by the electric field An electron-hole pair generated outside the depletion region they move by diffusion at a much slower rate Junction is typically reversed bia ...
OPTICAL PROPERTIES OF METALS
... In metals the absorption of photons by electrons occurs over a continuous wide range of energies beginning effectively from zero energy. This usually involves the absorption or emission of phonons to conserve momentum. In this process the electrons move between energy states in the same band. The in ...
... In metals the absorption of photons by electrons occurs over a continuous wide range of energies beginning effectively from zero energy. This usually involves the absorption or emission of phonons to conserve momentum. In this process the electrons move between energy states in the same band. The in ...
Algebra-based Physics II
... If an opaque body is in thermal equilibrium with its surroundings, then it must be absorbing and emitting radiation at the same rate (equally). It has to, or otherwise it would either heat up or cool off, and then no longer be in thermal equilibrium. This radiation is known as thermal (heat) radiati ...
... If an opaque body is in thermal equilibrium with its surroundings, then it must be absorbing and emitting radiation at the same rate (equally). It has to, or otherwise it would either heat up or cool off, and then no longer be in thermal equilibrium. This radiation is known as thermal (heat) radiati ...
PHOTOELECTRIC EFFECT
... force will push off the electrons with a higher speed. Emission should take place at any frequency because the electrons would absorb energy from the incoming radiation until they have energy enough to escape “So why threshold frequency?” ...
... force will push off the electrons with a higher speed. Emission should take place at any frequency because the electrons would absorb energy from the incoming radiation until they have energy enough to escape “So why threshold frequency?” ...
THE PHOTOELECTRIC EFFECT
... OBJECTIVE: To determine Planck’s constant by observing the photoelectric effect. REFERENCE: Krane, Section 3.2. THEORY: When light (or other electromagnetic radiation) is incident on a metal surface, electrons can be released from the metal. This is the photoelectric effect. According to classical t ...
... OBJECTIVE: To determine Planck’s constant by observing the photoelectric effect. REFERENCE: Krane, Section 3.2. THEORY: When light (or other electromagnetic radiation) is incident on a metal surface, electrons can be released from the metal. This is the photoelectric effect. According to classical t ...
LED and ILED
... epoxy into a recess in one half of the lead frame, called the anvil due to its shape. The recess in the anvil is shaped to throw the light radiation forward. The die's top contact is wire-bonded to the other lead frame terminal, the ...
... epoxy into a recess in one half of the lead frame, called the anvil due to its shape. The recess in the anvil is shaped to throw the light radiation forward. The die's top contact is wire-bonded to the other lead frame terminal, the ...
Lecture 1: Wave Particle Duality of Light
... suggested that EMR suggested that other explanations were needed. Consider the follow: • Blackbody radiation—wave theory suggests blackbodies (heat sources) transmit radiation at all υ. They don’t. • Photoelectric effect—wave theory says no energy minima for ejecting electrons from metal surfaces. T ...
... suggested that EMR suggested that other explanations were needed. Consider the follow: • Blackbody radiation—wave theory suggests blackbodies (heat sources) transmit radiation at all υ. They don’t. • Photoelectric effect—wave theory says no energy minima for ejecting electrons from metal surfaces. T ...
Ch1 Mod Review.WXP
... B. The Wave-Particle Duality of Nature The Compton effect, the photoelectric effect, and the measured blackbody radiation spectrum clearly demonstrated the “particle nature” of radiation in contrast to the previously accepted and demonstrated “wave nature” of radiation. This led to a wave-particle d ...
... B. The Wave-Particle Duality of Nature The Compton effect, the photoelectric effect, and the measured blackbody radiation spectrum clearly demonstrated the “particle nature” of radiation in contrast to the previously accepted and demonstrated “wave nature” of radiation. This led to a wave-particle d ...
TDR XFEL workshop series Atomic, molecular and cluster physics
... atoms’ outer shells are calculated in refs [4-7]. The analogous investigations in the region of absorption thresholds in the x-ray range of photon energy are absent now. The aim of this work is to calculate the cross section of two-photon absorption by an atomic inner 1s-shell of a simple system wit ...
... atoms’ outer shells are calculated in refs [4-7]. The analogous investigations in the region of absorption thresholds in the x-ray range of photon energy are absent now. The aim of this work is to calculate the cross section of two-photon absorption by an atomic inner 1s-shell of a simple system wit ...
Lecture24 - Purdue Physics
... For the remainder of the course, it will become increasingly important to distinguish between continuous and quantized items. Some things seem inherently continuous (like length, energy, mass) while other entities seem inherently discrete or quantized (like money, number of people at a football game ...
... For the remainder of the course, it will become increasingly important to distinguish between continuous and quantized items. Some things seem inherently continuous (like length, energy, mass) while other entities seem inherently discrete or quantized (like money, number of people at a football game ...
BIOLOGY 1 TEST REVIEW SHEET
... (stage 2 = Calvin Cycle)….you drew these on your Photosynthesis Diagramming…use your finger to trace the sunlight and electrons from step to step…you have to put these is sequential order on the BIG QUIZ Look at your Photosynthetic Energy graphs (with the line and bar graph) Fill in this ENTIRE revi ...
... (stage 2 = Calvin Cycle)….you drew these on your Photosynthesis Diagramming…use your finger to trace the sunlight and electrons from step to step…you have to put these is sequential order on the BIG QUIZ Look at your Photosynthetic Energy graphs (with the line and bar graph) Fill in this ENTIRE revi ...
Chapter 4 Optical Source
... population of atoms in the upper energy level is greater than that of the lower energy level (i.e. N2 > N1) This condition is known as population inversion and achieved using an external energy source and also known as ‘pumping’. ...
... population of atoms in the upper energy level is greater than that of the lower energy level (i.e. N2 > N1) This condition is known as population inversion and achieved using an external energy source and also known as ‘pumping’. ...
E f - Wappingers Central School District
... The photons of light emitted when going from any energy level to the ground state emit EMR in the ultraviolet ...
... The photons of light emitted when going from any energy level to the ground state emit EMR in the ultraviolet ...
Creation of Colloidal Periodic Structure
... The direction of atomic recoil follows exactly from the direction of propagation of the incident radiation. => Doppler effect in the emission or absorption of radiation by a moving atom. ...
... The direction of atomic recoil follows exactly from the direction of propagation of the incident radiation. => Doppler effect in the emission or absorption of radiation by a moving atom. ...
Optical Properties of Condensed Matters
... into colourless hosts is employed extensively in the crystals used for solid state lasers. A typical example is the ruby crystal. Rubies consist of Cr+3 ions doped into Al2O3. In the natural crystals, the Cr+3 ions are present as impurities, but in synthetic crystals, the dopants are deliberately in ...
... into colourless hosts is employed extensively in the crystals used for solid state lasers. A typical example is the ruby crystal. Rubies consist of Cr+3 ions doped into Al2O3. In the natural crystals, the Cr+3 ions are present as impurities, but in synthetic crystals, the dopants are deliberately in ...
Need for Development of Quantum Mechanics
... Calculate de-Broglie wavelength of a proton moving with 1/10th velocity of light. The electron in hydrogen atom may be thought of as confined to a radius of 5x10-11m.Calculate the minimum uncertainty in the momentum of the electron. Also calculate the minimum kinetic energy of the electron. A radar ...
... Calculate de-Broglie wavelength of a proton moving with 1/10th velocity of light. The electron in hydrogen atom may be thought of as confined to a radius of 5x10-11m.Calculate the minimum uncertainty in the momentum of the electron. Also calculate the minimum kinetic energy of the electron. A radar ...
Quantum Theory
... Electron momentum pe = mev; wavelength = h/pe = h/mev if v=10,000 m/s, me = 9x10-31 kg and h= 6.6 x 10-34 Joules; the wavelength of the electron is 7 nanometres; the higher the velocity, the shorter the wavelength, so electron microscopes can see things smaller than optical microscopes (wavelength 4 ...
... Electron momentum pe = mev; wavelength = h/pe = h/mev if v=10,000 m/s, me = 9x10-31 kg and h= 6.6 x 10-34 Joules; the wavelength of the electron is 7 nanometres; the higher the velocity, the shorter the wavelength, so electron microscopes can see things smaller than optical microscopes (wavelength 4 ...