2013/10/25 by A. Trisorio, M. Divall, B. Monoszlai +2
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Computer science #Crystal (programming language) #Infrared #Laser-Matter Interactions and Applications #Materials science #Nonlinear system #Optics #Optoelectronics #Phase (matter) #Physics #Pulse (music) #Quantum mechanics #Solid State Laser Technologies #physics.optics
paper · pdf · doi:10.1364/ol.39.002660
arxiv created 2013/10/25 · openalex publication_date 2014/04/21 · arxiv updated 2015/06/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Octave-spanning, 12.5 fs, (1.9 cycle) pulses with 115 μJ energy in the short-wavelength mid-infrared spectral range (1-2.5 μm) have been generated via phase-mismatched cascaded nonlinear frequency conversion using organic DAST (4-N, N-dimethylamino-4'-N'-methylstilbazolium tosylate) crystal. Such ultrafast cascading effect is ensured by the interaction of a pump pulse with the exceptionally large effective nonlinearity of the DAST crystal and experiencing nonresonant, strongly phase-mismatched, Kerr-like negative nonlinearity.