Single-shot d-scan technique for ultrashort laser pulse characterization using transverse second-harmonic generation in random nonlinear crystals

We demonstrate a novel dispersion-scan (d-scan) scheme for single-shot temporal characterization of ultrashort laser pulses. The novelty of this method relies on the use of a highly dispersive crystal featuring antiparallel nonlinear domains with a random distribution and size. This crystal, capable of generating a transverse second-harmonic signal, acts simultaneously as the dispersive element and the nonlinear medium of the d-scan device. The resulting in-line architecture makes the technique very simple and robust, allowing the acquisition of single-shot d-scan traces in real time. The retrieved pulses are in very good agreement with independent frequency-resolved optical grating measurements. We also apply the new single-shot d-scan to a terawatt-class laser equipped with a programmable pulse shaper, obtaining an excellent agreement between the applied and the d-scan retrieved dispersions.

Alonso, B.University of Salamanca (författare)
Crespo, H.University of Porto (författare)
Cojocaru, C.Polytechnic University of Catalonia (författare)
Trull, J.Polytechnic University of Catalonia (författare)
Romero, R.Sphere Ultrafast Photonics(Swepub:lu)anal-rro (författare)
Lopez-Ripa, M.University of Salamanca (författare)
Guerreiro, P. T.Sphere Ultrafast Photonics (författare)
Silva, F.Sphere Ultrafast Photonics (författare)
Miranda, M.Lund University,Lunds universitet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Sphere Ultrafast Photonics,University of Porto(Swepub:lu)fysi-mma (författare)
L'Huillier, A.Lund University,Lunds universitet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-alh (författare)
Arnold, C. L.Lund University,Lunds universitet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-cda (författare)
Sola, I. J.University of Salamanca (författare)
University of ZaragozaUniversity of Salamanca (creator_code:org_t)

Av författaren/redakt...: Salgado-Remacha, ...; Alonso, B.; Crespo, H.; Cojocaru, C.; Trull, J.; Romero, R.; visa fler...; Lopez-Ripa, M.; Guerreiro, P. T.; Silva, F.; Miranda, M.; L'Huillier, A.; Arnold, C. L.; Sola, I. J.; visa färre...

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