Chapter 11 Dual Nature of Radiation and Matter
... Estimating the following two numbers should be interesting. The first number will tell you why radio engineers do not need to worry much about photons! The second number tells you why our eye can never ‘count photons’, even in barely detectable light. The number of photons emitted per second by a Me ...
... Estimating the following two numbers should be interesting. The first number will tell you why radio engineers do not need to worry much about photons! The second number tells you why our eye can never ‘count photons’, even in barely detectable light. The number of photons emitted per second by a Me ...
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... by W. R. Hamilton [6]. In the treatise on electromagnetism, the quaternion was first used by J. C. Maxwell [7] to demonstrate the electromagnetic field. The gravitational field can be described by the quaternion also, and worked out the variation of the gravitational mass density in the gravitationa ...
... by W. R. Hamilton [6]. In the treatise on electromagnetism, the quaternion was first used by J. C. Maxwell [7] to demonstrate the electromagnetic field. The gravitational field can be described by the quaternion also, and worked out the variation of the gravitational mass density in the gravitationa ...
Steady-state electron transport within InAlN bulk ternary nitride
... Abstract: Al-bearing III-nitride semiconductor materials are essential for the development of high-frequency and high-power electronic devices and optoelectronic devices operating in the ultraviolet spectral region, because of their wide band gap and unique electronic characteristics. The InAlN allo ...
... Abstract: Al-bearing III-nitride semiconductor materials are essential for the development of high-frequency and high-power electronic devices and optoelectronic devices operating in the ultraviolet spectral region, because of their wide band gap and unique electronic characteristics. The InAlN allo ...
Thermionic emission
... 2.1 Richardson's law Potential barrier at the metal surface tends to prevent free electrons from escaping at low temperatures. When the metal is heated to sufficiently high temperature, some of free electrons get enough energy to carry them over potential barrier. With suitable electric field these ...
... 2.1 Richardson's law Potential barrier at the metal surface tends to prevent free electrons from escaping at low temperatures. When the metal is heated to sufficiently high temperature, some of free electrons get enough energy to carry them over potential barrier. With suitable electric field these ...
General Theory of Finite Deformation
... “…knowing the law of conservation of energy and the formulae for calculating the energy, we can understand other laws. In other words many other laws are not independent, but are simply secret ways of talking about the conservation of energy. The simplest is the law of the level” ---Richard Feynman ...
... “…knowing the law of conservation of energy and the formulae for calculating the energy, we can understand other laws. In other words many other laws are not independent, but are simply secret ways of talking about the conservation of energy. The simplest is the law of the level” ---Richard Feynman ...
![Assemblage: Exercises in Statistical Mechanics ====== [A] Ensemble Theory - classical gases](http://s1.studyres.com/store/data/008930189_1-a7a37d9ca413714c6a603f524253db38-300x300.png)
Density of states
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In solid-state and condensed matter physics, the density of states (DOS) of a system describes the number of states per interval of energy at each energy level that are available to be occupied. Unlike isolated systems, like atoms or molecules in gas phase, the density distributions are not discrete like a spectral density but continuous. A high DOS at a specific energy level means that there are many states available for occupation. A DOS of zero means that no states can be occupied at that energy level. In general a DOS is an average over the space and time domains occupied by the system. Localvariations, most often due to distortions of the original system, are often called local density of states (LDOS). If the DOS of an undisturbedsystem is zero, the LDOS can locally be non-zero due to the presence of a local potential.