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  1. Modeling the motion of a bright spot in jets from black holes M87* and SgrA*

    We study the general relativistic motion of a bright spot in a jet from an accreting black hole. The corresponding lensed images of the moving bright...

    Vyacheslav I. Dokuchaev, Natalia O. Nazarova in General Relativity and Gravitation
    Article 30 August 2021

  3. Photoinduced photon avalanche turns white objects into bright blackbodies

    An ideal blackbody absorbs all light impinging on it, and it radiates electromagnetic waves with a broad spectrum that depends only on the...

    Daguang Li, Hao Cui, ... Weiping Qin in Communications Physics
    Article Open access 29 June 2023

  4. Trajectories of Bright Stars and Shadows around Supermassive Black Holes as Tests of Gravity Theories

    Abstract

    General relativity (GR), created more than a century ago, has been checked in various experimental and observational tests. At an early stage...

    A. F. Zakharov in Physics of Particles and Nuclei
    Article Open access 29 September 2023

  5. Bright and dark diffractive focusing

    We investigate bright and dark diffractive focusing emerging in the free propagation of specific wave profiles. These general wave phenomena manifest...

    Manuel Rodrigues Gonçalves, Georgi Gary Rozenman, ... Wolfgang P. Schleich in Applied Physics B
    Article Open access 15 February 2022

  6. Bright Sources of Ultrarelativistic Particles and Gamma Rays for Interdisciplinary Research

    Abstract

    We consider a possibility of generating high-current beams of ultrarelativistic electrons accelerated in the regime of direct laser...

    N. E. Andreev, I. R. Umarov, V. S. Popov in Bulletin of the Lebedev Physics Institute
    Article 16 October 2023

  7. Bright continuously tunable vacuum ultraviolet source for ultrafast spectroscopy

    Ultrafast electron dynamics drive phenomena such as photochemical reactions, catalysis, and light harvesting. To capture such dynamics in real-time,...

    Lucie Jurkovičová, Ltaief Ben Ltaief, ... Jakob Andreasson in Communications Physics
    Article Open access 11 January 2024

  8. Bright and stable near-infrared lead-free perovskite light-emitting diodes

    Long-wavelength near-infrared light-emitting diodes (NIR LEDs) with peak emission wavelengths beyond 900 nm are of critical importance for various...

    Fanglong Yuan, Giulia Folpini, ... Feng Gao in Nature Photonics
    Article Open access 05 January 2024

  9. Testing alternative theories of gravity by fitting the hot-spot data of Sgr A*

    We are fitting dynamics of electrically neutral hot-spot orbiting around Sagittarius A* (Sgr A*) source in Galactic center, represented by various...

    Misbah Shahzadi, Martin Kološ, ... Yousaf Habib in The European Physical Journal C
    Article Open access 05 May 2022

  10. High-flux bright x-ray source from femtosecond laser-irradiated microtapes

    Betatron x-ray sources from laser-plasma interaction are characterized by compactness, ultrashort duration, broadband spectrum and micron source...

    Xiaofei Shen, Alexander Pukhov, Bin Qiao in Communications Physics
    Article Open access 07 March 2024

  11. Spectral determination of the colour and vertical structure of dark spots in Neptune’s atmosphere

    Previous observations of dark vortices in Neptune’s atmosphere, such as Voyager 2’s Great Dark Spot (1989), have been made in only a few...

    Patrick G. J. Irwin, Jack Dobinson, ... Statia L. Cook in Nature Astronomy
    Article 24 August 2023

  12. A Study of the Energy Component of X-Ray Radiation from an X-Pinch Hot Spot at the BIN Facility

    Abstract—

    A technique for studying the spatial structure of hybrid X-pinch plasma objects in the X-ray range is described, and main experimental...

    I. N. Tilikin, T. A. Shelkovenko, ... G. Kh. Salakhutdinov in Instruments and Experimental Techniques
    Article Open access 14 August 2023

  13. Bright X/\(\gamma\)-ray emission and lepton pair production by strong laser fields: a review

    The advent of high-power ultra-short laser pulses opens up new frontiers of relativistic non-linear optics, high energy density physics and...

    Tong-Pu Yu, Ke Liu, ... Zheng-Ming Sheng in Reviews of Modern Plasma Physics
    Article Open access 01 June 2024

  14. Balanced bright and dark field illumination for remote visual testing to detect cracks on pressure vessel of nuclear reactors

    Remote visual testing by video cameras is the standard process for inspecting the pressure vessel of nuclear reactors. The inspectors need to find...

    Takeshi Shimano, Keiichi Betsui in Optical Review
    Article 28 June 2021

  16. Collisional history of Ryugu’s parent body from bright surface boulders

    The asteroid (162173) Ryugu and other rubble-pile asteroids are likely re-accumulated fragments of much larger parent bodies that were disrupted by...

    E. Tatsumi, C. Sugimoto, ... M. Yoshikawa in Nature Astronomy
    Article 21 September 2020

  17. A novel focal spot positioning method for high peak power lasers

    The precise positioning of focal spots plays a crucial role in laser–matter interactions, especially for strong field physics requiring high laser...

    Fenxiang Wu, Zongxin Zhang, ... Yuxin Leng in Applied Physics B
    Article 14 December 2021

  18. Turning a hot spot into a cold spot: polarization-controlled Fano-shaped local-field responses probed by a quantum dot

    Optical nanoantennas can convert propagating light to local fields. The local-field responses can be engineered to exhibit nontrivial features in...

    Juan Xia, Jianwei Tang, ... Sailing He in Light: Science & Applications
    Article Open access 21 September 2020

  19. Extreme focusing of hard X-ray free-electron laser pulses enables 7 nm focus width and 1022 W cm−2 intensity

    By illuminating matter with bright and intense light, researchers gain insights into material composition and properties. In the regime of extremely...

    Jumpei Yamada, Satoshi Matsuyama, ... Kazuto Yamauchi in Nature Photonics
    Article 15 March 2024

  20. A Study of Transient Processes in a High-Current Vacuum-Arc Anode Spot Using High-Speed Spectroscopy and Videorecording

    The processes of plasma formation in the anode region of a high-current vacuum arc discharge are of high importance in terms of improving the...

    A. V. Schneider, S. A. Popov, ... A. V. Batrakov in Russian Physics Journal
    Article 08 May 2021
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