000926920 001__ 926920
000926920 003__ SzGeCERN
000926920 005__ 20240223163233.0
000926920 041__ $$aeng
000926920 100__ $$aGiacone, Rodolfo
000926920 245__ $$aSimulations of Laser Pulse Coupling and Transmission Efficiency in Plasma Channels
000926920 260__ $$c2005
000926920 520__ $$aOptical guiding of the laser pulse in a laser wakefield accelerator (LWFA) via plasma channels can greatly increase the interaction length and, hence, the maximun energy of trapped electrons.* Energy efficient coupling of laser pulses from vacuum into plasma channels is very important for optimal LWFA performance. We present 2D particle-in-cell simulations of this problem using the VORPAL code.** Some of the mechanisms considered are enhanced leakage of laser energy transversely through the channel walls, enhanced refraction due to tunneling ionization of neutral gas on the periphery of the gas jet, ionization of neutral gas by transverse wings of the laser pulse and effect of the pulse being off axis of the channel. Using power spectral diagnostics,*** we are able to differentiate between pump depletion and leakage from the channel. The results from our simulations show that for short (≈λ<sub><font size="-1">p
000926920 595__ $$aSIS PAC05-2006
000926920 65017 $$2SzGeCERN$$aAccelerators and Storage Rings
000926920 690C_ $$aARTICLE
000926920 700__ $$aBruhwiler, David L
000926920 700__ $$aCary, John R
000926920 700__ $$aDimitrov, Dimitre
000926920 700__ $$aEsarey, Eric
000926920 700__ $$aGeddes, Cameron G R
000926920 700__ $$aLeemans, Wim
000926920 700__ $$aMessmer, Peter
000926920 8564_ $$uhttps://accelconf.web.cern.ch/p05/PAPERS/TPAE031.PDF$$yPublished version from JACoW
000926920 901__ $$uLBNL, Berkeley
000926920 901__ $$uTech-X, Boulder, Colorado
000926920 916__ $$sn$$w200606
000926920 960__ $$a13
000926920 961__ $$c20090302$$h1043$$lCER01$$x20060206
000926920 962__ $$b719664$$k2179$$nknoxville20050516
000926920 963__ $$aPUBLIC
000926920 970__ $$a002594797CER
000926920 980__ $$aARTICLE