0000000001185205
AUTHOR
Jelena Mikelsone
Surface relief grating recording in azobenzene epoxy films
This work has been supported by National research program IMIS2. I would like to thank Larisa Grigorjeva and Aleksejs Zolotarjovs from Institute of Solid state physics, University of Latvia for FTIR measurements.
Nonlinear optical properties of silver nanoparticles: separating thermo-optical and Kerr effects
In this paper, we present a study on thermo-optical effect in core-shell silver/thiol-termination ligand nanoparticles. Nanoparticles were dissolved in Dichloromethane. Experimental measurements were carried out using a Z-scan setup. As laser sources we used two 1064 nm lasers: i) 28 ps pulse width laser with 1000 Hz pulse repetition rate; ii) 8 ns pulse width laser with changeable pulse repetition rate 200 – 40 000 Hz. To study what processes lead to refractive index changes we used the polarization-resolved Z-scan method. Comparing ps and ns results showed that response time of single pulse thermal effects for organic solvents depends on beam size while for nanoparticles it corresponds to…
Enhancement of photosensitivity in azo-epoxy resists for direct holographic recording
Financial support provided by Scientific Research Project for Students and Young Researchers Nr. SJZ/2017/7 realized at the Institute of Solid State Physics, University of Latvia is greatly acknowledged”