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  1. Studying third harmonic generation in spherical quantum dot under inversely quadratic Hellmann potential

    In this paper, we have reported the computation of the third harmonic generation of GaAs spherical quantum dot under the action of inversely...

    Article 07 January 2023
  2. Second-Harmonic Generation in a Thin Spherical Layer with a Small Radius by Coherent Sources of Elliptically Polarized Radiation

    Explicit forms of the power density and total radiation power of second-harmonic generation in a thin spherical layer with a small radius are...

    A. I. Talkachov, A. A. Shamyna, V. N. Kapshai in Journal of Applied Spectroscopy
    Article 25 January 2023
  3. The nonlinear optical rectification and second harmonic generation of a single electron confined in a multilayer spherical quantum dot

    In the present paper, we have performed a theoretical investigation of the influence of the Kratzer potential on the nonlinear optical rectification...

    A. Fakkahi, M. Kirak, ... R. Arraoui in Optical and Quantum Electronics
    Article 03 April 2023
  4. Effects of hydrostatic pressure and temperature on the second-harmonic generation of spherical quantum dots with inversely quadratic Hellmann potential

    We have theoretically investigated second-harmonic generation (SHG) of spherical quantum dots with inversely quadratic Hellmann potential under the...

    Ceng Chang, Xuechao Li, ... Zhuang Zhao in Indian Journal of Physics
    Article 10 November 2022
  5. Constructing a global ionospheric TEC map with a high spatial and temporal resolution by spherical harmonic functions

    The Massachusetts Institute of Technology (MIT) Haystack Observatory provides the ionospheric Total Electron Content (TEC) data with a temporal...

    Bo **ong, Yuqing Wang, ... You Yu in Astrophysics and Space Science
    Article 12 September 2022
  6. Third harmonic generation of spherical multilayered quantum dot: effects of quantum confinement, impurity, electric and magnetic fields

    In this study, simultaneous effects of hydrogenic impurity, core radius and layer thickness, external electric and magnetic fields on the third...

    M. Kirak, S. Yilmaz in Applied Physics A
    Article 04 May 2022
  7. On the Domain of Convergence of Spherical Harmonic Expansions

    Spherical harmonic expansions (SHEs) play an important role in most of the physical sciences, especially in physical geodesy. Despite many decades of...

    O. Costin, R. D. Costin, ... M. Bevis in Communications in Mathematical Physics
    Article 09 January 2022
  8. Second-Harmonic Generation by a Monolayer of Spherical Two-Layer Nanoparticles

    Abstract

    A model for calculating the second-harmonic (SH) intensity at reflection of light from a monolayer of spherical nanoparticles consisting of a...

    T. M. Chmereva, M. G. Kucherenko, ... V. M. Nalbandyan in Optics and Spectroscopy
    Article 01 October 2021
  9. Cluster pictures of three dimensional harmonic oscillators with frequencies in rational ratios

    Degeneracies of axially deformed harmonic oscillators with frequencies in rational ratios are decomposed into the sequences of 2, 6, 12, 20, 30,...

    Masahiko Sugawara in The European Physical Journal A
    Article 28 December 2023
  10. Generation of custom acoustic harmonic bursts from spherical helmholtz resonators using Q-switched Nd:YAG laser induced plasma

    We present a new method for generating a 4 to 25 ms high power acoustic harmonic bursts, reaching more than 110 dB Sound Pressure Level (SPL), from...

    H. S. Ayoub, Ashraf F. El-Sherif, ... Y. H. Elbashar in Optical and Quantum Electronics
    Article 14 August 2021
  11. 9 Stability of the Spherical Shape

    Ever so often we observe that a balloon, which is spherical in the undistorted state, becomes elongated upon inflation so that we obtain a...
    Ingo Müller, Peter Strehlow in Rubber and Rubber Balloons
    Chapter
  12. \(\mathscr {N}\,{=}\,2\) Supergravities in Harmonic Superspace

    Basics of \(\mathscr {N}\,{=}\,2, 4D\) conformal and Einstein supergravities in the harmonic superspace approach...
    Evgeny Ivanov in Handbook of Quantum Gravity
    Living reference work entry 2024
  13. Phase Properties of High Harmonics and Spatial Structure of the Harmonic Beam

    Abstract

    The harmonic phase dependence on the laser field intensity is one of the key properties of high-harmonic generation (HHG) in intense laser...

    V. V. Strelkov in Physics of Wave Phenomena
    Article 01 February 2024
  14. Second-Harmonic Generation in the Surface Layer of a Dielectric Spheroidal Particle: I. Analytical Solution

    Abstract

    The problem of second-harmonic generation by a plane elliptically polarized electromagnetic wave in a thin optically nonlinear surface layer...

    V. N. Kapshai, A. A. Shamyna, A. I. Talkachov in Optics and Spectroscopy
    Article 01 September 2023
  15. Generic Regularity of Level Set Flows with Spherical Singularity

    The sphere is well-known as the only generic compact shrinker for mean curvature flow (MCF). In this paper, we characterize the generic dynamics of...

    Ao Sun, **xin Xue in Annals of PDE
    Article 29 March 2024
  16. Entanglement of harmonic systems in squeezed states

    The entanglement entropy of a free scalar field in its ground state is dominated by an area law term. It is noteworthy, however, that the study of...

    D. Katsinis, G. Pastras, N. Tetradis in Journal of High Energy Physics
    Article Open access 06 October 2023
  17. Second-Harmonic Generation in the Surface Layer of a Dielectric Spheroidal Particle: II. Analysis of the Solution

    Abstract

    The vectors used in the solution of the problem of second-harmonic generation in the surface layer of a dielectric spheroidal particle are...

    A. A. Shamyna, V. N. Kapshai, A. I. Talkachov in Optics and Spectroscopy
    Article 01 July 2023
  18. Effect of Laser Beam Amplitude Profile on Second Harmonic Generation Efficiency

    Abstract

    The efficiency of laser radiation harmonic generation in nonlinear crystals is one of the most pressing problems in applied nonlinear optics....

    V. O. Troitskii in Atmospheric and Oceanic Optics
    Article 01 April 2024
  19. High-harmonic spectroscopy of low-energy electron-scattering dynamics in liquids

    High-harmonic spectroscopy is an all-optical nonlinear technique with inherent attosecond temporal resolution. It has been applied to a variety of...

    Angana Mondal, Ofer Neufeld, ... Hans Jakob Wörner in Nature Physics
    Article Open access 28 September 2023
  20. Third harmonic generation of cosh-Gaussian laser beam in arrays of vertically aligned carbon nanotube

    In this present study, we have theoretically investigated the enhanced cosh-Gaussian laser beam third harmonic generation via the nonlinear...

    Ashish Varma, S. P. Mishra, ... Asheel Kumar in Optical and Quantum Electronics
    Article 12 April 2024
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