The possibility of generating large amplitude electron plasma waves by means of n short laser pulses in a cold collisionless electron plasma is investigated in detail on the basis of a fluid relativistic model. The problem of the 'resonant' interaction between a synchronized sequence of laser pulses and the plasma is solved analytically up to the wavebreaking limit. The potentialities of the 'quasi-resonant' interaction are investigated numerically paying attention to the sensitivity of the evolution of the system to the number and to the length of the pulses, the distance between successive pulses, and their shape. The possibility of performing photon acceleration experiments is also demonstrated.
電子プラズマ波の大振幅励起の可能性について、短パルスレーザー列を用いた場合を、冷たい無衝突電子プラズマ中において、流体相対論モデルに基づいて詳細に調べた。レーザーパルス列とプラズマとの間の「共鳴的」相互作用の問題は、波破砕限界まで解析的に解かれた。「準共鳴的」相互作用の可能性については、パルス数、パルス長、パルス間隔、およびパルス形状に対する系の時間発展の敏感性に着目して、数値的に調べた。さらに、光子加速実験を実施する可能性も実証された。