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TY - CONF AU - Miao, C.M. AU - Antonsen, T.M. AU - Palastro, J. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Simulation of Laser Pulse Driven Terahertz Generation in Inhomogeneous Plasmas J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - Intense, short laser pulses propagating through inhomogeneous plasma can ponderomotively drive THz radiation. Here we consider a transition radiation mechanism (TRM) for THz generation as a laser pulse crosses a plasma boundary. Full format PIC simulations and theoretical analysis are conducted demonstrating that TRM results in low frequency, broad band, coherent THz radiation. The effect of a density ramp is also considered and shown to enhance the radiated energy. PB - JACoW CP - Geneva, Switzerland SP - 2661 EP - 2663 KW - plasma KW - radiation KW - laser KW - simulation KW - vacuum DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-WEPWA068 UR - http://jacow.org/ipac2015/papers/wepwa068.pdf ER -