Laser with phase conjugation for high intensity interactions
نویسندگان
چکیده
منابع مشابه
Femtolasers and High-intensity Laser-matter Interactions
Contents 1. Summary Femtolasers arose owing to the mode-locking technique which allowed producing laser pulses of femtosecond duration. The invention of the chirped pulse amplification and the development of high-fluence laser gain media and large-aperture nonlinear crystals made it possible to amplify femtosecond laser pulses to unprecedented powers, in excess of petawatt. A tight focusing of ...
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We present theoretical and experimental evidence that nonionizing prepulses with intensities as low as 10(8)-10(9) W/cm(2) can substantially alter high intensity laser-solid interactions. We show that prepulse-heating and vaporization of the target can lead to a preformed plasma once the vapor is ionized by the rising edge of the high-intensity pulse. Our results indicate that peak prepulse int...
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A phase conjugation array (time-reversal mirror) time reverses the incident signal and precisely returns it to its original source location. A high frequency (~3.5 kHz) phase conjugation array (HFPCA) has been designed, fabricated, and deployed at sea in two experiments (July 1999 and May/June 2000) conducted jointly with the NATO SACLANT Undersea Research Centre. The HFPCA consists of 29 sourc...
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Collisionless shocks are pervasive in space and astrophysical plasmas and are known to be efficient particle accelerators; however, the microphysics underlying shock formation and particle acceleration is not yet fully understood. The fast progress in laser technology is bringing the study of near-relativistic collisionless shocks into the realm of laboratory plasmas. We use multi-dimensional p...
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Fourier-transform-limited light pulses were obtained at the laser-plasma interaction point of a 100-TW peak-power laser in vacuum. The spectral-phase distortion induced by the dispersion mismatching between the stretcher, compressor, and dispersive materials was fully compensated for by means of an adaptive closed-loop. The coherent temporal contrast on the sub-picosecond time scale was two ord...
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ژورنال
عنوان ژورنال: Laser and Particle Beams
سال: 1999
ISSN: 0263-0346,1469-803X
DOI: 10.1017/s0263034699174226