Figure 3
From: Phase control of femtosecond pulses on the nanoscale using second harmonic nanoparticles
(a) Laser spectrum and spectral phases measured for different BaTiO3 NPs. (b) Mean spectral phase over 15 measurements. The error bars are given by the standard deviation for the 15 measurements. Note that the total variation of the spectral phase is less than 0.3 rad, and the standard deviation is approximately 0.15 rad. (c) SEM image of the sample, showing the 15 BaTiO3 NPs used for measurement. (d) SH control for NP 8. The SH spectra measured before and after compression and for a step function of amplitude π applied to the SLM are compared with the calculated spectra. MIIPS, multiphoton intrapulse interference phase scan; NP, nanoparticle; SEM, scanning electron microscopy; SH, second harmonic; SLM, spatial light modulator.
