Single-shot d-scan technique for ultrashort laser pulse characterization using transverse second-harmonic generation in random nonlinear crystals
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 09, 2020
- Source ID
- 10.1364/ol.397033
Entities
People
- Anne L'Huillier
- Benjamín Alonso
- Cord Arnold
- Crina Maria Cojocaru
- F. Silva
- Francisco Javier Salgado‐Remacha
- Helder Crespo
- J. Trull
- Miguel López-Ripa
- Miguel Miranda
- Paulo T Guerreiro
- Rosa Romero
- Íñigo Sola
Organizations
- European Research Council
- Fundação para a Ciência e Tecnologia
- Junta of Castile and León
- Ministry of Economy, Industry and Competitiveness
- Swedish Research Council
- United States Army Combat Capabilities Development Command