title: DAST/SiO2 multilayer structure for efficient generation of 6 THz quasi-single-cycle electromagnetic pulses.
abstract: We propose a DAST/SiO(2) multilayer structure for efficient generation of near-single-cycle THz transients with average frequency around 6 THz via collinear optical rectification of 800 nm femtosecond laser pulses. The use of such a composite material allows compensation for the phase mismatch that accompanies THz generation in bulk DAST crystals. The presented calculations indicate a strong increase in the THz generation efficiency in the DAST/SiO(2) structure in comparison to the case of bulk DAST crystal.
authors: GAP-Biophotonics, Université de Genève, Chemin de Pinchat 22, CH—1211 Genève 4, Switzerland. andrey.stepanov@unige.ch
authors: Andrei G
authors: AG
authors: Stepanov
authors: Luigi
authors: L
authors: Bonacina
authors: Jean-Pierre
authors: JP
authors: Wolf
mesh_terms: D001597:Benzylidene Compounds / Q000737:chemistry*; D060733:Electromagnetic Radiation; D011726:Pyridinium Compounds / Q000737:chemistry*; D011791:Quartz; D012822:Silicon Dioxide / Q000737:chemistry*; D014105:Tosyl Compounds / Q000737:chemistry*
chemical_list: D001597:Benzylidene Compounds; D011726:Pyridinium Compounds; D014105:Tosyl Compounds; D011791:Quartz; D012822:Silicon Dioxide