Bad Neuenahr - Ahrweiler und Sinzig deutschland

https://www1.wdr.de/nachrichten/nrw-wetter-gewitter-starkregen-100.html?fbclid=IwZXh0bgNhZW0CMTEAAR1qMBgn6xA-xYBoXnti4DbzDdriy8V0AawBBU9BewjWN87Lo1WOVz37nNo_aem_Ab7uoNtBBG1i1dhMrSy-cCaAXP1EkFzpRKc6VKnLrZuN8gSKSaMRMZofduNNsECxcg9XIOoa916Ru6qOShMBS5fU

Rain induced by supercontinuum laser beams'
US10375900B2
United States
Status: Active
2038-03-22: Anticipated expiration

"A chemical-free, laser-induced rain method uses supercontinuum (SC) generation by 800 nm 100 fs (femtoseconds) ultra high power laser beams to produce photoionization in optical filaments and application of Gaussian(G) and Laguerre Gaussian (LG) beams. The SC is used to produce multiple filamentations and micro particle manipulation in the atmosphere with obvious applications in arid or drought ridden areas. Two salient steps are used to induce rain: 1) high peak power filament inducing laser pulses to ionize air molecules and preexisting aerosols, and 2) manipulation of nano and micro sized particles using special function beams as potential particle traps, such as the Laguerre Gaussian and Gaussian beams. The outcome is a clean, safe, efficient method for inducing rain. The application is not just limited to rain induction but can also be used in clearing dust and cloud clearing formations."
https://patents.google.com/patent/US10375900B2/en

'Kilometer-range nonlinear propagation of femtosecond laser pulses'
https://www.researchgate.net/publication/8614970_Kilometer-range_nonlinear_propagation_of_femtosecond_laser_pulses

"In the filaments, nonlinear self-action of the laser pulse leads to strong evolutions of its spatial (self focusing, self guiding, self reflection), spectral (four wave mixing, self phase modulation) as well as temporal (self-steepening, pulse splitting) characteristics. Extensive work has been dedicated to the characterization of such processes, from both the experimental and theoretical points of view, on both short scales and at long distances. For example, we have shown that filamentation generates broadband « white light » continuum (230 nm-4 µm). This « white-light laser » covers the absorption band of many atmospheric pollutants filaments can survive their propagation through hostile conditions (rain, haze, turbulent atmospheres)"

""From higher-order Kerr nonlinearities to quantitative modeling of third and fifth harmonic generation in argon", Optics Letters, 36, 828 (2011)
"Transition from plasma- to Kerr-driven laser filamentation", Physical Reveiw Letters, 106, 243902 (2011)
"On negative higher-order Kerr effect and filamentation", Laser Physics, 21, 1319 (2011)
"Influence of pulse duration, energy, and focusing on laser-assisted water condensation", Applied Physics Letters, 98, 041105 (2011)
"1-J white-light continuum from 100-TW laser pulses", Physical Review A, 83, 013805 (2011)
"Field measurements suggest the mechanism of laser-assisted water condensation". Nature Communications 2, 456 (2011)
"On lightning control using lasers", in Progress in Ultrafast Intense Laser Science 5. 2010, Yamanouchi, Kaoru. p. 109-122.
"Higher-order Kerr terms allow ionization-free filamentation in gases". Physical Review Letters. 104, 103903 (2010)
"Saturation of the filament density of ultrashort intense laser pulses in air". Applied Physics B. 100, 77 (2010)
"Laser-induced water condensation in air". Nature Photonics. 4, 451 (2010)
"Generalized Miller Formulæ". Optics Express. 18, 6613 (2010)
"Arbitrary-order non-linear contribution to self-steepening". Optics Letters. 35, 2795 (2010)
"Production of ozone and nitrogen oxides by laser filamentation". Applied Physics Letters. 97, 021108 (2010)
"Mobile source of high-energy single-cycle terahertz pulses" Applied Phyisics B, 101, 11 (2010)
"Mechanism of hollow-core-fiber infrared-supercontinuum compression with bulk material", Physical Review A, 81, 063828 (2010)
"Spectral dependence of purely-Kerr-driven filamentation in air and argon", Physical Review A, 82, 033826 (2010)
"Compression of 1.8 µm laser pulses to sub two optical cycles with bulk material", Applied Physics Letters, 96, 121109 (2010)
"Contribution of water droplets to charge release by laser filaments in air". Applied Physics Letters. 95, 091107 (2009)
"Filament-Induced Birefringence in Argon". Laser Physics. 19, 336 (2009)
"Multiple filamentation of non-uniformly focused ultrashort laser pulses". Applied Physics B. 94, 243 (2009)
"Ultraviolet-visible conical emission by multiple laser filaments". Optics Express. 17, 4726 (2009)
"Laser beams take a curve". Science. 324, 194 (2009)
"Lightning control by lasers". Nature Photonics. 3, 120 (2009)
"White-light symmetrization by the interaction of multifilamenting beams". Physical Reveiw A. 79, 053856 (2009)
"Curved plasma channels Kerr lens and Airy prism". Journal of the European Optical Society: Rapid Publications. 4, 09039 (2009)
"Optical rogue wave statistics in laser filamentation". Optics Express. 17, 12070 (2009)
"Cross compression of light bullets by two-color cofilamentation". Physical Reveiw A. 78, 043804 (2008)
"Dual-color co-filamentation in Argon". Optics Express. 16, 14115 (2008)
"Ultrafast gaseous “half-wave plate”". Optics Express. 16, 7564 (2008)
"Effects of atmospheric turbulence on remote optimal control experiments". Applied Physics Letters. 92, 041103 (2008)
"Progress towards lightning control using lasers", Journal of the European Optical Society, 3, 08035 (2008)
"Electric events synchronized with laser filaments in thunderclouds", Optics Express 16, 5757 (2008)
"Forward THz radiation emission by femtosecond filamentation in gases: theory and experiment", New Journal of Physics 10, 013015 (2008)
"Physics and applications of atmospheric nonlinear optics and filamentation", Optics Express 16, 466 (2008)
"Coherent and Incoherent Radial THz Radiation Emission from Femtosecond Filaments in Air", Optics Express 15, 15274 (2007)
"Terahertz radiation source in air based on bifilamentation of femtosecond laser pulses", Physical Review Letters 99, 135002 (2007)
"Conical forward THz emission from femtosecond laser filamentation in air", Physical Review Letters 98, 235002 (2007)
"Propagation of laser filaments through an extended turbulent region", Applied Physics Letters 91, 171106 (2007)
"Ultrashort filaments of light in weakly-ionized, optically-transparent media", Reports on progress in physics, 70, 1633 (2007)
"Femtosecond filamentation in transparent media", Physics Reports, 441, 47 (2007)
"High current permanent discharges in air induced by femtosecond laser filamentation", Applied Physics Letters 90, 171501 (2007)
"Spatial mode cleaning by femtosecond filamentation", Optics Letters 31, 2601 (2006)
"Femtosecond filamentation in air at low pressures: part I: theory and numerical simulations", Optics Communications 259, 265 (2006)
"Femtosecond filamentation in air at low pressures: part II: laboratory experiments", Optics Communications 261, 322 (2006)
"Optimal control of filamentation in air", Applied Physics Letters 89, 171117 (2006)
"Improved laser triggering and guiding of Megavolt discharges with fs-ns double pulses", Applied Physics Letters 88, 021101 (2006)
"UV-Supercontinuum generated by femtosecond pulse filamentation in air: Meter-range experiments versus numerical simulations", Applied Physics B 82, 341 (2006)
"Influence of negative leader propagation on the triggering and guiding of high voltage discharges by laser filaments", Applied Physics B 82, 561 (2006) (DOI 10.1007/s00340-005-2061-5)
"Laser femtoseconde, filamentation, nuage et orage", J. Phys. IV 127, 205 (2005)
"Multifilamentation transmission through fog", Physical Review E 72, 026611 (2005)
"Filament-induced remote surface ablation for long range LIBS operation", Spectrochemica Acta B 60, 1025 (2005)
"Propagation of fs-TW laser filaments in adverse atmospheric conditions", Applied Physics B 80, 785 (2005)
"Supercontinuum emission and enhanced self-guiding of infrared femtosecond filaments sustained by third-harmonic generation in air", Physical Review E 71, 016602 (2005)
"Range of plasma filaments created in air by a multi-terawatt femtosecond laser", Optics Communications 247, 171 (2005)
"Triggering and guiding of MV discharges by laser-induced filaments under rain conditions", Applied Physics Letters 82, 5781 (2004)
"White-light filaments for multiparameter analysis of cloud microphysics", JOSA B 22, 369 (2005)
"Long-distance remote laser-induced breakdown spectroscopy using filamentation in air", Applied Physics Letters 85(18), 3977 (2004)
"Filamentation of femtosecond light pulses in air: Turbulent cells versus long-range clusters", Physical Review E, 70, 046602 (2004)
"Long range self-channeling of infrared laser pulses in air: a new propagation regime without ionisation", Applied Physics B, 79, 379 (2004)
"Multiple filamentation of terawatt laser pulses in air", Physical Review Letters 92, 225002 (2004)
"Spatial break-up of femtosecond laser pulses in the atmosphere", Physica Scripta T107, 135 (2004)
"Remote Detection and Identification of Biological Aerosols using a Femtosecond Terawatt Lidar System", Applied Physics B 78, 535 (2004). DOI: 10.1007/s00340-004-1466-x
"Remote LIBS with ultra-short pulses: characteristics in picosecond and femtosecond regimes", Journal of Analytical Atomic Spectrometry 19, 437 (2004)
"Kilometer-range non-linear propagation of fs laser pulses" Physical Review E 69, 036607 (2004)
Science, "White-light filaments for atmospheric analysis", 301 (4 July), 61-64 (2003). Abstract - Full text.
"Sonographic probing of laser filaments in air", Applied Optics, 42(36), 7117 (2003)
Applied Phyiscs B, "Towards a supercontinuum-based infrared Lidar", 77, 357 (2003)
European Physical Journal - Applied Physics, "Teramobile: a Mobile Femtosecond-Terawatt Laser and Detection System", 20:3, 183 (2002)
Optics Letters, "Triggering and Guiding High Voltage Discharge by Ohmic Connection through Ionized Filaments Created by Femtosecond Laser Pulses", 27(9), pp 772-774 (2002)
Appl. Phys. B,"Modifications to the lidar equation due to nonlinear propagation in air", 73:2, pp 157-163 (2001)
Optics Letters, "Backward supercontinuum emission from filaments generated by ultrashort laser pulses in air", 26:8, pp 533-535 (2001)
Applied Physics B, "The critical laser intensity of self-guided light filaments in air", 71:6, pp 877-879 (2000)
Optics Letters, "Infrared extension of the hypercontinuum generated by fs-TW-laser pulses propagating in the atmosphere", 25:18, pp 1397-1399 (2000)"
https://www.teramobile.org/publis.html

Supercontinuum emission and enhanced self-guiding of ...
TERAMOBILE
https://www.teramobile.org › PRE_UV2005
PDF
by L Bergé · 2005 · Cited by 116 — formed with the Teramobile laser facility. By means of chirped 150 fs, cm-waisted pulses delivering several TW in power, vertical shots in ...
https://www.teramobile.org/publications/PRE_UV2005.pdf