Paper 14108-20
Paper 14108-20
Deformable bioplastic gratings with variable curvature based on chitosan from seafood waste
14 April 2026 • 15:00 - 15:20 CEST | Madrid 1/Salon 3 (Niveau/Level 0)
Abstract
Bioplastic diffraction gratings are fabricated from chitosan extracted from crab shells sourced from seafood waste. The gratings are deformable and employed in experiments as curved diffractive elements. We discuss variable diffraction output and first-order power efficiencies for two radii of curvature: 22.5mm and 47.5mm. Results are presented for gratings prepared from chitosan and a chitosan-glycerol blend.
Presenter
Raphael A. Guerrero
Ateneo de Manila Univ (Philippines)
Dr. Raphael A. Guerrero is Dean of the School of Science and Engineering (SOSE) of the Ateneo de Manila University. He obtained his PhD in Physics from the University of the Philippines Diliman in 2005. Dr. Guerrero holds the rank of Professor at the Ateneo where he has taught with the Department of Physics for 25 years. Prior to the deanship, he served as Chair of Physics from 2016 to 2019 and Acting Dean of SOSE in 2019. He was President of the Physics Society of the Philippines (SPP) in 2011 and 2012. In 2013, he was recognized by the National Academy of Science and Technology (Philippines) as an Outstanding Young Scientist. Dr. Guerrero's research interests include laser physics and photonics and he is the author of more than 50 SCOPUS-indexed publications.