Nonlinear Interaction of an Electromagnetic Wave with a Plasma Layer in the Presence of a Static Magnetic Field. IV. Experimental Results

1964 ◽  
Vol 135 (2A) ◽  
pp. A374-A381 ◽  
Author(s):  
S. J. Tetenbaum ◽  
R. F. Whitmer ◽  
E. B. Barrett
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Wave ◽  
Static Magnetic Field ◽  
Nonlinear Interaction ◽  
Plasma Layer ◽  
Experimental Results

RAYONNEMENT FORTEMENT ACCRU PRÉSENTÉ PAR UNE ANTENNE ENROBÉE D'UNE GAINE DIÉLECTRIQUE ET D'UNE COUCHE DE PLASMA

1967 ◽  
Vol 45 (10) ◽  
pp. 3367-3380
Author(s):  
A. M. Messiaen ◽  
P. E. Vandenplas
Keyword(s):  
Magnetic Field ◽  
Static Magnetic Field ◽  
Dielectric Layer ◽  
Essential Role ◽  
Plasma Layer ◽  
Plasma Sheath ◽  
Operating Frequency

The plasma sheath existing between an antenna and a surrounding plasma layer plays an essential role. It is predicted that, for a given operating frequency, there exist certain plasma densities for which the system is resonant, and this very strongly enhanced radiation is fully confirmed by experiments. This combination of dielectric layer and plasma enables to tune an antenna even when its dimensions are much smaller than the vacuum wavelength. The influence of a static magnetic field is discussed.The same system can also be used as a frequency-sensitive receiving aerial.

THIRD-HARMONIC EMISSION IN MgB2 SUPERCONDUCTOR AT MICROWAVE FREQUENCIES

2003 ◽  
Vol 17 (04n06) ◽  
pp. 535-541 ◽  
Author(s):  
A. AGLIOLO GALLITTO ◽  
G. BONSIGNORE ◽  
M. LI VIGNI
Keyword(s):  
Magnetic Field ◽  
Static Magnetic Field ◽  
Power Level ◽  
Input Power ◽  
Experimental Results ◽  
Mgb2 Superconductor ◽  
Microwave Frequencies ◽  
Third Harmonic ◽  
Harmonic Emission ◽  
Harmonic Signals

We report a set of experimental results on microwave third-harmonic emission by MgB 2 superconductor. We have investigated third-harmonic signals as a function of temperature, input power level and intensity of the static magnetic field. We show that different mechanisms are responsible for third-harmonic emission at temperatures near T c and far below T c , similarly to what has been obtained in other high- T c superconductors.

Microwave Third Harmonic Emission by Ba0.6K0.4BiO3 Crystals

1999 ◽  
Vol 13 (09n10) ◽  
pp. 1163-1168 ◽  
Author(s):  
A. Agliolo Gallitto ◽  
M. Guccione ◽  
M. Li Vigni
Keyword(s):  
Magnetic Field ◽  
Experimental Data ◽  
Static Magnetic Field ◽  
Power Level ◽  
Input Power ◽  
Experimental Results ◽  
Third Harmonic ◽  
Harmonic Emission ◽  
Harmonic Signals

We report a set of experimental results on microwave third-harmonic emission by Ba 0.6 K 0.4 BiO 3 crystals. Third-harmonic signals are investigated as a function of temperature, input power level and intensity of the static magnetic field. The experimental data are discussed in the framework of models previously reported in the literature.

scholarly journals Efficient THz Generation by Nonlinear Interaction of Gaussian Laser Beam With the Anharmonic and Rippled CNTs Aligned Vertically in the Array

2021 ◽  
Author(s):  
Sandeep Kumar ◽  
Shivani Vij ◽  
Niti Kant ◽  
Vishal Thakur
Keyword(s):  
Magnetic Field ◽  
Carbon Nanotubes ◽  
Laser Beam ◽  
Static Magnetic Field ◽  
Nonlinear Interaction ◽  
Transverse Velocity ◽  
Dielectric Surface ◽  
Thz Radiation ◽  
Gaussian Laser Beam ◽  
Vertically Aligned

Abstract We purpose a theoretical analysis for the generation of efficient terahertz (THz) radiation by using the nonlinear interaction of Gaussian laser beam with vertically aligned anharmonic, and rippled carbon nanotubes (CNTs) array. This array of vertically aligned carbon nanotubes (VA-CNTs) is embedded on the base of the dielectric surface. The VA-CNTs have been magnetized by applying a static magnetic field mutually perpendicular to the direction of propagation of the Gaussian beam and length of CNTs. The Gaussian laser beam passing through the CNTs exerts a nonlinear ponderomotive force on the electrons of CNTs and provides them resonant nonlinear transverse velocity. This produces the nonlinear current which is further responsible for the generation of THz radiation. The anharmonicity plays a vital role in the efficient generation of THz radiation. The anharmonicity arises due to the nonlinear variation of restoration force on the various electrons of CNTs. This anharmonicity in the electrons of CNTs helps in broadening the resonance peak. We have observed that externally applied static magnetic field 110 kg to 330 kg) also paves the way for the enhancement of the normalized THz amplitude.

Durchgang von Mikrowellen durch ebene Plasmaschichten

1962 ◽  
Vol 17 (1) ◽  
pp. 59-64
Author(s):  
K. Hain ◽  
M. Tutter
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Wave ◽  
Static Magnetic Field ◽  
Plane Electromagnetic Wave ◽  
Reflection And Transmission ◽  
Plasma Slab ◽  
Plane Plasma

The reflection and transmission of a plane electromagnetic wave propagating through a plane plasma slab with and without a static magnetic field is computed.

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