% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @INPROCEEDINGS{Gopal:151970, author = {Gopal, Amrutha and May, Torsten and Singh, Pushkar and Herzer, Sven and Ziegler, Wolfgang and Paulus, Gerhard G. and Schmidt, Albrecht and Reinhard, Andreas and Dillner, Ulrich and Meyer, Hans-Georg and Karmakar, Anupam and Brömmel, Dirk and Gibbon, Paul}, title = {700μ{J} {TH}z pulses from a laser-driven particle accelerator}, address = {Washington, DC}, publisher = {Society of Photo-Optical Instrumentation Engineers (SPIE)}, reportid = {FZJ-2014-01797}, pages = {123-150}, year = {2013}, comment = {SPIE Proceedings, Volume 8779, Laser Acceleration of Electrons, Protons, and Ions II; and Medical Applications of Laser-Generated Beams of Particles II; and Harnessing Relativistic Plasma Waves III}, booktitle = {SPIE Proceedings, Volume 8779, Laser Acceleration of Electrons, Protons, and Ions II; and Medical Applications of Laser-Generated Beams of Particles II; and Harnessing Relativistic Plasma Waves III}, abstract = {Here we report a laser plasma-driven source of T-rays with the highest pulse energy ever recorded in a laboratory. T-rays are emitted from therear surface of a solid target in the non-collinear direction at incident laser intensities ~ $10^19$ $W/cm^2.$ Pulse energy measurements reported T-ray pulses with peak energies no less than 700 μJ. Temporal measurements using a single-shot electro-optic method showed the presence of sub-picosecond T-ray pulseswith 570 fs duration, thus rendering the peak-power of the source higher even than that of state-of-the-art synchrotrons. A conversion efficiencyof higher than $10^-3$ and an average power of 7 mW makes it the most efficient compact and powerful THz source known today. Spectral analysis revealed the presences of frequencies ranging from 0.1 - 133 THz, while most of the energy is localised in the low frequency region. The dependence of T-ray yield on incident laser energy is linear and shows no signs of saturation. The spatial distribution of the recorded T-rays indicates that most of the T-rays are emitted in the non-collinear direction from the rear-surface of a solid target and the contribution in the forward direction is very small. 2D particle-in-cellsimulations show the presence of transient current at the target rear surface.}, month = {Apr}, date = {2013-04-15}, organization = {SPIE Optics + Optoelectronics, Prague (Czech Republic), 15 Apr 2013 - 18 Apr 2013}, cin = {JSC}, cid = {I:(DE-Juel1)JSC-20090406}, pnm = {411 - Computational Science and Mathematical Methods (POF2-411) / EMMI - Helmholtz-Allianz 'Kosmische Materie im Labor', Extreme Matter Institute (HGF-IVF-HA-216)}, pid = {G:(DE-HGF)POF2-411 / G:(DE-Ds200)HGF-IVF-HA-216}, typ = {PUB:(DE-HGF)8 / PUB:(DE-HGF)7}, UT = {WOS:000323544600039}, doi = {10.1117/12.2017254}, url = {https://juser.fz-juelich.de/record/151970}, }