RT Journal Article
T1 Nano–dispersion–scan: measurement of sub-7-fs laser pulses using second-harmonic nanoparticles
A1 Pérez Benito, Óscar
A1 Weigand Talavera, Rosa María
AB We demonstrate the measurement and retrieval of sub-7 fs laser pulses from a broadband Ti:Sa oscillator using ensembles of commercially available second-harmonic (SH) nanoparticles (NPs) and dispersion-scan (d-scan). Scattering adds an incoherent component to the d-scan trace and our retrieval procedure allows for correctly the trace. Comparison with a thin crystal (BBO, Beta Barium Borate) gave consistent pulse durations (6.56 ± 0.03 fs for BBO and 6.5 ± 0.1 fs for the NPs). These results pave the way to using ensembles of NPs for the measurement of ultrashort light pulses with ultrabroadband spectra at room temperature with standard spectrometers, in any spectral range.
PB Optica Publishing Group
SN 0146-9592
YR 2019
FD 2019-10-15
LK https://hdl.handle.net/20.500.14352/113869
UL https://hdl.handle.net/20.500.14352/113869
LA eng
NO Óscar Pérez-Benito and Rosa Weigand, "Nano–dispersion–scan: measurement of sub-7-fs laser pulses using second-harmonic nanoparticles," Opt. Lett. 44, 4921-4924 (2019)
NO Se deposita la versión final de los autores (postprint)
NO Ministerio de Economía, Industria y Competitividad (España)
DS Docta Complutense
RD 4 jun 2025