“…In the experiments [8,9] generation of radiation in the "grid" VFEL was observed in BWO regime. The sample oscillogram is shown in Fig.…”
Section: Experimental and Numerical Studies Of "Grid" Photonic Crystalsmentioning
confidence: 97%
“…Stability of "grid" to heating by electron beam was evaluated and confirmed by experiments with VFEL with the different "grids" [8,9].…”
Section: Experimental and Numerical Studies Of "Grid" Photonic Crystalsmentioning
confidence: 99%
“…In our first experiments [8] we used the photonic crystal built inside rectangular cross-section waveguide. Rows of tungsten threads were strained inside the rectangular waveguide (see Fig.…”
Section: Experimental and Numerical Studies Of "Grid" Photonic Crystalsmentioning
confidence: 99%
“…New type of TWT and BWO on the basis of Volume Free Electron Laser (VFEL) [3][4][5] was proposed in [6][7][8][9]. Transverse dimensions of VFEL resonator could significantly exceed radiation wavelength.…”
Specific features of Volume Free Electron Laser (VFEL) with a photonic crystal made from the wire grids periodically strained in a waveguide are studied theoretically and experimentally. Electrodynamical properties of a "grid" photonic crystal built in a cylindrical waveguide are reported. Possibility to use it for VFEL lasing in wide frequency range is discussed.
“…In the experiments [8,9] generation of radiation in the "grid" VFEL was observed in BWO regime. The sample oscillogram is shown in Fig.…”
Section: Experimental and Numerical Studies Of "Grid" Photonic Crystalsmentioning
confidence: 97%
“…Stability of "grid" to heating by electron beam was evaluated and confirmed by experiments with VFEL with the different "grids" [8,9].…”
Section: Experimental and Numerical Studies Of "Grid" Photonic Crystalsmentioning
confidence: 99%
“…In our first experiments [8] we used the photonic crystal built inside rectangular cross-section waveguide. Rows of tungsten threads were strained inside the rectangular waveguide (see Fig.…”
Section: Experimental and Numerical Studies Of "Grid" Photonic Crystalsmentioning
confidence: 99%
“…New type of TWT and BWO on the basis of Volume Free Electron Laser (VFEL) [3][4][5] was proposed in [6][7][8][9]. Transverse dimensions of VFEL resonator could significantly exceed radiation wavelength.…”
Specific features of Volume Free Electron Laser (VFEL) with a photonic crystal made from the wire grids periodically strained in a waveguide are studied theoretically and experimentally. Electrodynamical properties of a "grid" photonic crystal built in a cylindrical waveguide are reported. Possibility to use it for VFEL lasing in wide frequency range is discussed.
“…As we have shown in [9,10,11,12,13,14,15,16] this challenge can be overcome applying a photonic crystal, formed by metallic grids (grid travelling wave tube(grid TWT), grid volume free electron laser(grid VFEL)).…”
It is shown that use of a photonic crystal enables to construct several types of hybrid systems with virtual cathode, which could radiate due to different radiation mechanisms (bremsstrahlung and diffraction (transition) radiation) with different frequencies. Also mentioned that photonic crystal makes possible to create phaselocked array of generators.
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