Vol. 15 No. 1 (2023)

					View Vol. 15 No. 1 (2023)

The current issue of Photonics Letters of Poland features papers related to various aspects of photonics, including: the design of  optical sensor for water turbidity to obtain precise water quality values without interference from outside light (unlike previous studies using conventional turbidity sensors); extraction and optical characterization of silica from reeds biomass in various annealing temperatures indicating a shift of the optical properties and dielectric functions towards longer wavelengths with an increase of annealing temperature; theoretical demonstration of the electric and magnetic energy densities and energy flux for radially variant vector beam focusing through a dielectric interface to generate novel focal structures for corresponding radial indices; the design of apodizer which significantly improves the performance of three-zone aberrated optical systems by increasing the intensity and suppressing the side lobes for higher degrees of defocus and primary spherical aberration thanks to application of specific amplitude filter.

Published: 2023-04-02