scholarly journals Plumpton: A Course of Mathematics for Engineers and Scientists/Löffler: Der Mathematikunterricht/Park: Introduction to the Quantum Theory/Denisse u. Delcroix: Plasma Waves/Ginzburg: The Propagation of Electromagnetic Waves in Plasma, Vol. 7/Radioactive Da

1965 ◽  
Vol 21 (3) ◽  
pp. 138-140
Author(s):  
K. Strubecker ◽  
A. Korn ◽  
E. Fünfer ◽  
Ludolf Schultz ◽  
B. Schrader ◽  
...  
Keyword(s):  
Quantum Theory ◽  
Electromagnetic Waves ◽  
Plasma Waves

Harmonic Responses In 2DEG AlGaAs/GaAs HEMT Devices Due To Plasma Wave Interactions

2012 ◽  
Author(s):  
Abdul Manaf Hashim ◽  
Seiya Kasai ◽  
Hideki Hasegawa
Keyword(s):  
Plasma Wave ◽  
Electron Mobility ◽  
Electromagnetic Waves ◽  
Field Effect Transistors ◽  
High Electron Mobility Transistor ◽  
Plasma Waves ◽  
Thz Radiation ◽  
High Electron ◽  
Short Channel ◽  
High Electron Mobility

Gelombang plasma adalah ayunan kepadatan elektron dalam ruang masa, dan di dalam submikro transistor kesan medan, frekuensi plasma khas, ωp, terletak dalam julat terahertz (THz) dan tidak melibatkan peralihan kuantum. Maka, ayunan THz dapat dikesan dan/atau dihasilkan dengan menggunakan ransangan gelombang plasma. Dalam kertas kerja ini, dapat dikaji kaitan gelombang plasma antara penghantaran gelombang plasma dalam saluran pendek transistor pergerakan elektron tinggi (high–electron–mobility transistor – HEMT) dan yang terpancar dari gelombang elektromagnet. Berdasarkan ekperimen, kami telah membuktikan pengesanan radiasi terahertz (THz) oleh AlGaAs /GaAs HEMT hingga harmonik ketiga dalam suhu bilik dan hasil resonan bertepatan dengan hasil kiraan. Kata kunci: Gelombang permukaan plasma; plasma hanyut; peranti THz; GaAs; HEMT Plasma waves are oscillations of electron density in time and space, and in deep submicron field effect transistors, typical plasma frequencies, ωp, lie in the terahertz (THz) range and do not involve any quantum transitions. Hence, using plasma wave excitation for detection and/or generation of THz oscillations is a very promising approach. In this paper, the investigation of plasma wave interaction between the plasma waves propagating in a short–channel High–Electron–Mobility Transistor (HEMT) and that of the radiated electromagnetic waves was carried out. Experimentally, we have demonstrated the detection of the terahertz (THz) radiation by an AlGaAs/GaAs HEMT up to third harmonic at room temperature and their resonant responses show very good agreement with the calculated results. Key words: Surface plasma waves; drift plasma; THz device, GaAs; HEMT

scholarly journals Whistler waves observed by Solar Orbiter during its first orbit

2021 ◽  
Author(s):  
Matthieu Kretschmar ◽  
Thomas Chust ◽  
Daniel Graham ◽  
Volodya Krasnosekskikh ◽  
Lucas Colomban ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Electromagnetic Waves ◽  
Heliocentric Distance ◽  
Plasma Waves ◽  
Distribution Functions ◽  
The Sun ◽  
Whistler Waves ◽  
Velocity Distribution Functions ◽  
The Waves

<p>Plasma waves can play an important role in the evolution of the solar wind and the particle velocity distribution functions in particular. We analyzed the electromagnetic waves observed above a few Hz by the Radio Plasma Waves (RPW) instrument suite onboard Solar Orbiter, during its first orbit, which covered a distance from the Sun between 1 AU and 0.5 AU.  We identified the majority of the detected waves as whistler waves with frequency around  0.1 f_ce and right handed circular polarisation. We found these waves to be mostly aligned or anti aligned with the ambient magnetic field, and rarely oblique. We also present and discuss their direction of propagation and the variation of the waves' properties with heliocentric distance.</p>

Interaction between electromagnetic waves and plasma waves in motional plasma

2009 ◽  
Vol 16 (6) ◽  
pp. 062107 ◽  
Author(s):  
S. Y. Chen ◽  
M. Gao ◽  
C. J. Tang ◽  
X. D. Peng
Keyword(s):  
Electromagnetic Waves ◽  
Plasma Waves

EINSTEIN-PODOLSKY-ROSEN-BOHM CORRELATION FOR LIGHT POLARIZATION

1993 ◽  
Vol 07 (05) ◽  
pp. 1321-1330 ◽  
Author(s):  
SALOMON S. MIZRAHI ◽  
MILED H.Y. MOUSSA
Keyword(s):  
Numerical Simulation ◽  
Quantum Theory ◽  
Correlation Coefficient ◽  
Electromagnetic Waves ◽  
Light Polarization ◽  
Precise Description ◽  
Classical Source ◽  
Einstein Podolsky Rosen ◽  
The One ◽  
Polarization Correlation

Considering a classical source of light (macroscopic), we propose an experiment, based on the principles of the Einstein-Podolsky-Rosen-Bohm correlation, for which one expects to obtain the same polarization correlation coefficient as the one predicted by the quantum theory, when photons are counted in coincidence. The results of a numerical simulation give good ground to believe that the conjectured experiment is reasonable. So, one may argue that the property of light called polarization, that is manifest at any level — microscopic and macroscopic — and which has a precise description in both, the quantum and the classical theories, leads to coincident results under correspondingly similar experimental procedures. Therefore the EPRB correlation is a consequence of that property of light, independently whether it is viewed as constituted by photons or by electromagnetic waves.

scholarly journals The quantum theory of dispersion in metallic conductors

1929 ◽  
Vol 124 (794) ◽  
pp. 409-422 ◽  
Keyword(s):  
Electrical Conductivity ◽  
Dielectric Constant ◽  
Electromagnetic Field ◽  
Quantum Theory ◽  
Isotropic Medium ◽  
Electromagnetic Waves ◽  
Maxwell’S Equations ◽  
Maxwell's Equations ◽  
Classical Electrodynamics ◽  
Metallic Conductivity

1. Formulation of the problem. - The propagation of electromagnetic waves in a homogeneous isotropic medium showing metallic conductivity has been treated phenomenologically on the basis of classical electrodynamics. If in Maxwell's equations for the electromagnetic field curl E = - 1/ c ∂B/∂ t , curl H = 1/ c (∂D/∂ t + 4πI), div D = 4πρ, div B = 0, we assume that D = εE, B = μH, I = σE, (1) where e is the dielectric constant, u the permeability and q the electrical conductivity, we get curl E = - μ/c ∂H/∂ t , curl H = 1/ c (ε ∂E/∂ t 4πσE), div E = 4πρ/ε. div H =0.

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