Spatially dependent group delay dispersion from a diffraction grating and its application to the single-shot d-scan technique
Year: 2025
Type: article
Abstract: Diffraction gratings are among the most fundamental optical elements. They are essential in ultrafast optics for manipulating the spectral phase of coherent ultrashort light pulses in grating stretchers, compressors, and 4 f pulse shapers. In this work, we have exploited an effect associated with diffraction from a single grating, which can produce large amounts of spatially dependent GDD. Leveraging this effect, we propose a single-shot dispersion-scan technique, enabling the characterization of longer pulse durations than previously possible, with arbitrary chirp. We demonstrate this method by measuring 170 fs pulses from a commercial ytterbium-based laser system, both before and after post-compression in a multi-pass cell.
Source: Optica
Authors: Daniel Díaz Rivas, Cristian Barbero, Chen Guo, Marzo C. López Cerón, Miguel Canhota, Ivan Sytcevich, Saga Westerberg, Gaspard Beaufort, Íñigo J. Sola, Benjamín Alonso, Miguel Miranda, Helder Crespo, Rosa Romero, Anne-Lise Viotti, Cord L. Arnold
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,208
Funders: Ministerio de Ciencia, Innovación y Universidades, Lunds Universitet, Vetenskapsrådet, Ministerio de Ciencia e Innovación, Consejería de Educación, Junta de Castilla y León, Junta de Castilla y León, European Regional Development Fund, European Social Fund, HORIZON EUROPE European Innovation Council
Awards: G1848059663, G262500640, Single-shot, ultrashort laser pulse characterization based on the dispersion scan technique, G349306844, G4183733098, G4942993369, Lund Attosecond Science Center, G6054992498, Ultrafast optical technologies at high repetition rates, G6886018561, G7452364200, High repetition rate and high photon energy attosecond pulse sources for time-resolved spectroscopy and imaging, G8327893249, G8546082198
OpenAlex ID: W4415815235