We discuss novel advanced concepts suitable for the practical design of gamma-ray sources of directed energy. One concept is based on the self-channeling of a powerful optical laser in a gas within a metal tube. Another concept employs a direct excitation of a quadrupole nuclear level by a powerful optical laser. The third concept is based on the process of a high-order harmonic generation by an x-ray laser. All three concepts can be used for designing gamma-ray lasers that would have significant advantages over x-ray lasers. First, missile defense systems employing gamma-ray lasers would be weather independent. Second, the gamma-ray laser radiation can penetrate through the sand, which could be suspended in the air in a desert either naturally (due to strong winds) or artificially (as a protective “shield”). Besides, the first out of the three concepts can beemployed for creating non-laser gamma-ray sources of directed energy to be used for detecting stored radioactive materials, including the radioactive materials carried by an aircraft or a satellite. Last but not least: these concepts can be also used for remotely destroying biological and chemical weapons as a preemptive strike or during its delivery phase, as well as for distinguishing a nuclear warhead from decoy warheads. Thus, the defense capabilities of the proposed gamma-ray lasers can save numerous lives.
References
[1]
Rus, B., Mocek, T., Präg, A.R., Lagron, J.C., Hudecek, M., Jamelot, G. and Rohlena, K. (2001) X-Ray Laser Facility at the PALS Centre. Le Journal de Physique, 11, Pr2-589-Pr2-596. https://doi.org/10.1051/jp4:20012117
[2]
Baldwin, C.C., Solem, J.C. and Gol’danskii, V.I. (1981) Approaches to the Development of Gamma-Ray Lasers. Reviews of Modern Physics, 53, 687-744. https://doi.org/10.1103/RevModPhys.53.687
[3]
Korobkin, V.V. and Borovskiy, A.V. (1981) Kvantovaja Elektronika (Quantum Electronics), 7, 686. (In Russian)
[4]
Collins, C.B. and Caroll, J.J. (1995) Progress in the Pumping of a Gamma-Ray Lasers. Laser Physics, 5.
[5]
Borisov, A.B., Borovskiy, A.V., Shiryaev, O.B., et al. (1992) Relativistic and Charge-Displacement Self-Channeling of Intense Ultrashort Laser Pulses in Plasmas. Physical Review A, 45, 5830-5845. https://doi.org/10.1103/PhysRevA.45.5830
[6]
Preston, S.G., Sanpera, A., Zepf, M., et al. (1996) High-Order Harmonics of 246.6-nm KrF Laser from Helium and Neon Ions. Physical Review A, 53, R31-R34. https://doi.org/10.1103/PhysRevA.53.R31
[7]
Bellini, M., Lynga, C., Tozzi, A., et al. (1998) Temporal Coherenceof Ultrashort High-Order Harmonic Pulses. Physical Review Letters, 81, 297-300. https://doi.org/10.1103/PhysRevLett.81.297
[8]
Jarque, E.C. and Plaja, L. (1998) Harmonic Generation with Ionizing Two-Level Atoms. Journal of Physics B: Atomic, Molecular and Optical Physics, 31, 1687-1694. https://doi.org/10.1088/0953-4075/31/8/018
[9]
Gavrilenko, V.P. and Oks, E. (2000) A Significant Enhancement of High-Order Harmonic Generation by Using a Dipole Gas. Journal of Physics B: Atomic, Molecular and Optical Physics, 33, 1629-1643. https://doi.org/10.1088/0953-4075/33/8/312
[10]
Oks, E. and Gavrilenko, V.P. (2001) Dramatic Enhancement of the High-Order Harmonic Generation by Using either Dipole Media or a Double Multiquantum Resonance. Le Journal de Physique IV, 11, Pr2-365-Pr-368. https://doi.org/10.1051/jp4:2001270
[11]
Sundaram, B. and Milloni, P.W. (1990) High-Order Harmonic Generation: Simplified Model and Relevance of Single-Atom Theories to Experiment. Physical Review A, 41, 6571-6573. https://doi.org/10.1103/PhysRevA.41.6571
[12]
Plaja, L. and Roso-Franco, L. (1992) Adiabatic Theory for High-Order Harmonic Generation in a Two-Level Atom. Journal of the Optical Society of America B, 9, 2210-2213. https://doi.org/10.1364/JOSAB.9.002210
[13]
Corkum, P.B. (1993) Plasma Perspective on Strong Field Multiphoton Ionization. Physical Review Letters, 71, 1994-1997. https://doi.org/10.1103/PhysRevLett.71.1994
[14]
Kaplan, A.E. and Shkolnikov, P.L. (1994) Superdressed Two-Level Atom: Very High Harmonic Generation and Multiresonances. Physical Review A, 49, 1275-1280. https://doi.org/10.1103/PhysRevA.49.1275
[15]
Muryasov, R.R. and Nefedov, A.L. (1994) Generation of Harmonics of a Strong Field in a Three-Level Atomic Model. Journal of Experimental and Theoretical Physics, 78, 650-652.
[16]
Becker, W., Long, S. and Melver, J.K. (1994) Modeling Harmonic Generation by a Zero-Range Potential. Physical Review A, 50, 1540-1560. https://doi.org/10.1103/PhysRevA.50.1540
[17]
Krajnov, V. and Miljukov, Z. (1994) A Plateau in High-Order Harmonic Generation for a Two-Level Atom. Laser Physics, 4, 544-550. https://www.researchgate.net/publication/272164823_A_Plateau_in_High-Order_Harmonic_Generation_for_a_Two-Level_Atom
[18]
Zuo, T., Chelkowski, S. and Bandrauk, A.D. (1994) Photon-Emission Spectra of the H2+ Molecular Ion in an Intense Laser Field. Physical Review A, 49, 3943-3953. https://doi.org/10.1103/PhysRevA.49.3943
[19]
Calderon, O.G., Gutierrez-Castrejon, R. and Guerra, J.M. (1999) High Harmonic Generation Induced by Permanent Dipole Moments. IEEE Journal of Quantum Electronics, 35, 47-52. https://doi.org/10.1109/3.737618
[20]
Freedhof, H.S. (1978) Transitions at the Rabi Frequency in the AC Stark Effect: a Dressed-Molecule Description. Journal of Physics B: Atomic and Molecular Physics, 11, 811-817. https://doi.org/10.1088/0022-3700/11/5/015
[21]
Kothari, N.C. and Kobayashi, T. (1984) Single Beam Two-Photon Optical Bistability in a Submicron Size Fabry-Perot Cavity. IEEE Journal of Quantum Electronics, 20, 418-423. https://doi.org/10.1109/JQE.1984.1072402
[22]
Nattori, T. and Kobayashi, T. (1987) Bloch-Siegert Shift in Giant-Dipole Molecules. Physical Review A, 35, 2733-2736. https://doi.org/10.1103/PhysRevA.35.2733
[23]
Gavrilenko, V.P. and Oks, E. (1987) Multiphoton Resonance Transitions between Dressed-Atom Sublevels Separated by the Rabi Frequency. Soviet Physics-Technical Physics, 32, 11-14.
[24]
Band, Y.B., Bavli, R. and Heller, D.F. (1989) Multiphoton Transitions in Molecules with Permanent Dipole Moments. Chemical Physics Letters, 156, 405-410. https://doi.org/10.1016/0009-2614(89)87117-9
[25]
Kmetic, M.A. and Meath, W.J. (1990) Perturbative Corrections to the Rotating-Wave Approximation for Two-Level Molecules and the Effects of Permanent Dipoles on Single-Photon and Multiphoton Spectra. Physical Review A, 41, 1556-1568. https://doi.org/10.1103/PhysRevA.41.1556
[26]
Gavrilenko, V.P. and Oks, E. (1995) Polarization of a Dipole Gas under a Resonant Interaction with a Strong Bichromatic Field. Journal of Physics B: Atomic, Molecular and Optical Physics, 28, 1433-1441. https://doi.org/10.1088/0953-4075/28/8/008
[27]
Gavrilenko, V.P. and Oks, E. (1995) Novel Principlefora Tunable Amplification of Microwaves Drivenbya Laser Radiation. Physical Review Letters, 74, 3796-3799. https://doi.org/10.1103/PhysRevLett.74.3796
[28]
Krylov, N. and Bogoliubov, N.N. (1947) Introduction to Nonlinear Mechanics. Princeton University Press, Princeton.
[29]
Bogoliubov, N.N. and Mitropolskii, Yu. M. (1961) Asymptotic Methods in the Theory of Nonlinear Oscillations. Gordon and Breach, New York.
[30]
Bohr, A. and Mottelson, B.R. (1969) Nuclear Structure. Benjamin, New York.
[31]
Oks, E., Dalimier, E., Faenov, A.Y., et al. (2017) Using X-ray Spectroscopy of Relativistic Laser Plasma Interaction to Reveal Parametric Decay Instabilities: a Modeling Tool for Astrophysics. Optics Express, 25, 1958-1972. https://doi.org/10.1364/OE.25.001958
[32]
Pittalwala, I. (2019) Gamma-Ray Laser Moves a Step Closer to Reality. UC Riverside News.
[33]
Wang, W.M., Sheng, Z.M., Gibbon, P., Chen, L.-M., Li, Y.-T. and Zhang, J. (2018) Collimated Ultrabright Gamma Rays from Electron Wiggling along a Petawatt Laser-Irradiated Wire in the QED Regime. The Proceedings of the National Academy of Sciences, 115, 9911-9916. https://doi.org/10.1073/pnas.1809649115
[34]
Benedetti, A., Tamburini, M. and Keitel, C.H. (2018) Giant Energy Transfer from an Electron Bunch to a Photon Beam Mediated by Radiation Reaction. Nature Photonics, 12, 319-323. https://doi.org/10.1038/s41566-018-0139-y
[35]
Gu, Y.J. and Weber, S. (2018) Intense, Directional and Tunable γ-Ray Emission via Relativistic Oscillating Plasma Mirror. Optics Express, 26, 19932-19939. https://doi.org/10.1364/OE.26.019932
