000206325 001__ 206325
000206325 005__ 20181203023815.0
000206325 022__ $$a1079-7114
000206325 02470 $$2ISI$$a000336842800008
000206325 0247_ $$2doi$$a10.1103/PhysRevLett.112.213901
000206325 037__ $$aARTICLE
000206325 245__ $$aGV/m Single-Cycle Terahertz Fields from a Laser-Driven Large-Size Partitioned Organic Crystal
000206325 269__ $$a2014
000206325 260__ $$c2014
000206325 336__ $$aJournal Articles
000206325 520__ $$aWe report on compact and efficient laser-based THz generation in the terahertz frequency gap (1-10 THz). The radiation is generated by optical rectification of a midinfrared laser in a large-size, partitioned nonlinear organic crystal assembly. This enables up-scaling of presently field-limited tabletop THz sources to GV/m electric and several tesla magnetic field at millijoule pulse energy. In agreement with simulations, the THz beam properties at focus are shown to be not deteriorated by the discontinuity of the emitter surface. The high laser-to-THz energy conversion efficiency exceeds the Manley-Rowe limit and is explained by a cascaded chi((2)) process in the organic crystals accompanied by a significant redshift of the pump spectrum. The scheme provides a compact, tabletop THz source for single-cycle transients at field strength equivalent or even higher to linear accelerator and FEL-based THz sources. This opens an avenue toward novel nonlinear THz applications.
000206325 700__ $$aVicario, Carlo
000206325 700__ $$aMonoszlai, Balazs
000206325 700__ $$g204280$$aHauri, Christoph P.$$0244705
000206325 773__ $$j112$$tPhysical Review Letters$$k21
000206325 909C0 $$xU10658$$0252363$$pLPAP
000206325 909C0 $$xU12312$$0252525$$pGR-HAU
000206325 909CO $$pSB$$particle$$ooai:infoscience.tind.io:206325
000206325 917Z8 $$x204280
000206325 917Z8 $$x148230
000206325 937__ $$aEPFL-ARTICLE-206325
000206325 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000206325 980__ $$aARTICLE