The linear regime of the two-plasmon decay instability in inhomogeneous plasmas

Yan, R.; Maximov, A. V.; Ren, C.
May 2010
Physics of Plasmas;May2010, Vol. 17 Issue 5, p052701
Academic Journal
A linear fluid code solving the equations for the two-plasmon decay (TPD) instability has been developed and used to study the TPD instability. Both absolute and convective modes are observed in the simulations using this code, which show that the absolute modes are located close to the quarter-critical-density surface while the convective modes are located in the lower-density region. The maximum growth rates of the absolute modes measured in the simulations agree well with the theoretical results in the limits of large and small values of the parameter β∝Te2/(Iλ2), where Te is the electron temperature, I is the laser intensity, and λ is the laser wavelength. The simulation results also agree with the β-dependent threshold for absolute TPD. A derivation of the convective gain that retains the dependence on electron temperature and perpendicular mode number is presented and it is in good agreement with the simulation results.


Related Articles

  • Design of multipolar plasmon excitations in silver nanoparticles. Krenn, J. R.; Krenn, J.R.; Schider, G.; Rechberger, W.; Lamprecht, B.; Leitner, A.; Leifner, A.; Aussenegg, F. R.; Aussenegg, F.R.; Weeber, J. C.; Weeber, J.C. // Applied Physics Letters;11/20/2000, Vol. 77 Issue 21 

    We report on the experimental observation of multipolar plasmon excitations in lithographically designed elongated silver particles. In contrast to spheres, where the extinction bands of the respective multipolar plasmons overlap considerably to form a broad spectrum, spectrally well-separated...

  • Bulk resonance absorption induced by relativistic effects in laser-plasma interaction. Ding, Wen-Jun; Sheng, Z.-M.; Zhang, J.; Yu, M. Y. // Physics of Plasmas;Apr2009, Vol. 16 Issue 4, p042315 

    Resonance absorption in relativistic laser-plasma interaction is studied via two-dimensional particle-in-cell simulation. As the laser intensity increases from the linear regime, the absorption rate first decreases due to relativistic modulation of the electron plasma oscillations excited at the...

  • Ultrashort laser pulse induced deformation of silver nanoparticles in glass. Kaempfe, M.; Rainer, T.; Berg, K.-J.; Seifert, G.; Graener, H. // Applied Physics Letters;3/1/1999, Vol. 74 Issue 9, p1200 

    Analyzes ultrashort laser pulse induced deformation of silver nanoparticles in glass. Development of permanent sample color changes if the laser wavelength is in the region of the particles' surface plasmon resonance; Behavior of bleaching bands; Considerations as to how an intense light field...

  • Two color plasmon excitation in an electron-hole bilayer structure controlled by the spin-orbit interaction. Yang, C. H.; Wright, A.; Gao, F.; Zhang, C.; Zeng, Z.; Xu, W. // Applied Physics Letters;5/29/2006, Vol. 88 Issue 22, p223102 

    The dispersion and intensity of coupled plasma excitation in an electron-hole bilayer with Rashba spin-orbit coupling is calculated. We propose to use the spin-orbit coupling in individual layers to tune the intensity of two plasmons. The mechanism can be used to develop a two color terahertz...

  • Optimization of 780 nm DFB diode lasers for high-power narrow linewidth emission. Nguyen, T.-P.; Schiemangk, M.; Spießberger, S.; Wenzel, H.; Wicht, A.; Peters, A.; Erbert, G.; Tränkle, G. // Applied Physics B: Lasers & Optics;Sep2012, Vol. 108 Issue 4, p767 

    We demonstrate the realization of narrow linewidth, high-power ridge waveguide DFB diode lasers emitting near 780 nm. The effects of the coupling coefficient, the laser chip length, and the fabrication process onto the spectral linewidth are discussed. By optimizing both the cavity length and...

  • Precision Spectroscopy of H2 and a Possible Variation of mp/me over Cosmological Time. Ubachs, W. // AIP Conference Proceedings;2006, Vol. 869 Issue 1, p37 

    A novel and highly accurate (at the level of Δλ/λ = 5 × 10-8) database of 233 spectral lines in the Lyman and Werner bands of H2 is determined via laboratory spectroscopy employing a narrowband and tunable extreme ultraviolet laser system. Furthermore an updated set of so-called Ki...

  • Femtosecond Microbunching of Electron Beam in a 7th Harmonic Coupled IFEL. Tochitsky, S. Ya.; Williams, O. B.; Musumeci, P.; Sung, C.; Haberberger, D. J.; Cook, A. M.; Rosenzweig, J. B.; Joshi, C. // AIP Conference Proceedings;1/22/2008, Vol. 1086 Issue 1, p622 

    We report the results of studying electron beam microbunching in a 7th order IFEL interaction using coherent transition radiation emitted by the bunched beam as a diagnostic. The resonant wavelength for the undulator with a period of 3.3 cm and K = 1.8 is 74.2 μm, but it was seeded by a CO2...

  • Infrared photodetectors with tailorable response due to resonant plasmon absorption in epitaxial.... Fathauer, R.W.; Dejewski, S.M.; George, T.; Jones, E.W.; Krabach, T.N.; Ksendzov, A. // Applied Physics Letters;4/12/1993, Vol. 62 Issue 15, p1774 

    Describes infrared photodetectors with tailorable response. Effect of the surface plasmon resonance of the particles on the photodetectors; Control of the aspect ratios of the particles; Determination of the absorption peak.

  • Measurement of velocity of particles in a dense suspension by cross correlation of dual laser beams. Zhu, C.; Slaughter, M. C.; Soo, S. L. // Review of Scientific Instruments;Aug1991, Vol. 62 Issue 8, p2036 

    This note deals with measurement of local average velocity of a particle cloud in an air suspension by cross correlation of two attenuated laser beams.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics