Dynamic mitigation of the tearing mode instability in a collisionless current sheet
Sign Up to like & getrecommendations! Published in 2021 at "Scientific Reports"
DOI: 10.1038/s41598-021-91111-8
Abstract: Dynamic mitigation for the tearing mode instability in the current sheet in collisionless plasmas is demonstrated by applying a wobbling electron current beam. The initial small amplitude modulations imposed on the current sheet induce the… read more here.
Keywords: mitigation tearing; mode instability; dynamic mitigation; sheet ... See more keywords
Suppressing transverse mode instability through multimode excitation in a fiber amplifier.
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2217735120
Abstract: High-power fiber laser amplifiers have enabled an increasing range of applications in industry, science, and defense. The power scaling for fiber amplifiers is currently limited by transverse mode instability. Most techniques for suppressing the instability… read more here.
Keywords: mode instability; instability; fiber; transverse mode ... See more keywords
2.43 kW narrow linewidth linearly polarized all-fiber amplifier based on mode instability suppression
Sign Up to like & getrecommendations! Published in 2017 at "Laser Physics Letters"
DOI: 10.1088/1612-202x/aa760b
Abstract: We demonstrate an experimental study on scaling mode instability (MI) threshold in fiber amplifiers based on fiber coiling. The experimental results show that coiling the active fiber in the cylindrical spiral shape is superior to… read more here.
Keywords: linewidth linearly; mode instability; fiber; amplifier ... See more keywords
Bulk viscosity for interacting strange quark matter and r-mode instability windows for strange stars
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Physics C"
DOI: 10.1088/1674-1137/abc0cd
Abstract: We investigate the bulk viscosity of strange quark matter in the framework of the equivparticle model, where analytical formulae are obtained for certain temperature ranges, which can be readily applied to those with various quark… read more here.
Keywords: strange stars; bulk viscosity; mode instability; quark matter ... See more keywords
Impact of Stimulated Raman Scattering on the Transverse Mode Instability Threshold
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2018.2842467
Abstract: Quantum defect originating from the stimulated Raman scattering (SRS) effect is a heat source that induces refractive index grating and, thus, significantly decreases the threshold of transverse mode instability (TMI), which is the main limiting… read more here.
Keywords: raman scattering; stimulated raman; mode instability; transverse mode ... See more keywords
Mode instability in ytterbium-doped non-circular fibers.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.013230
Abstract: We present a theoretical study of transverse mode instability (TMI) in non-circular ytterbium-doped fibers including the rectangular core in a circular or D-shaped cladding. The D-shaped cladding is found efficient to suppress the TMI thanks… read more here.
Keywords: non circular; mode instability; core; ytterbium doped ... See more keywords
Characterization of transverse mode instability with a 4-quadrant photodiode.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.478961
Abstract: Transverse mode instability (TMI) represents the main limitation for the power scaling of fiber laser systems with a diffraction-limited beam quality. In this context, it has become increasingly important to find a cheap and reliable… read more here.
Keywords: beam; mode instability; transverse mode;
Thermoacoustic Interpretation of Second-Mode Instability
Sign Up to like & getrecommendations! Published in 2018 at "AIAA Journal"
DOI: 10.2514/1.j057015
Abstract: A thermoacoustic interpretation of Mack’s second-mode instability is proposed. It is demonstrated that the fundamental mechanism of second-mode wave growth in hypersonic boundary layers is consiste... read more here.
Keywords: mode instability; mode; second mode; thermoacoustic interpretation ... See more keywords