Spectral, Morphological and Dynamical Analysis of a Holographic Grating Recorded in a Photo-Mobile Composite Polymer Mixture
Daniele Eugenio Lucchetta,
Riccardo Castagna,
Gautam Singh,
Cristiano Riminesi,
Andrea Di Donato
Affiliations
Daniele Eugenio Lucchetta
Dipartimento di Scienza ed Ingegneria della Materia, dell’Ambiente e Urbanistica (SIMAU), Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
Riccardo Castagna
Consiglio Nazionale delle Ricerche (CNR), Unità di Ricerca presso Terzi (URT-CNR), Università di Camerino (UNICAM), Polo di Chimica, Via Sant’Agostino, 1, 62032 Camerino, Italy
Gautam Singh
Department of Applied Physics, Amity Institute of Applied Sciences, Amity University, Uttar Pradesh, Noida 201313, India
Cristiano Riminesi
Consiglio Nazionale delle Ricerche (CNR), Institute of Heritage Science, Via Madonna del Piano, 50019 Sesto Fiorentino, Italy
Andrea Di Donato
Dipartimento di Ingegneria dell’Informazione (DII), Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
We report on the morphological, spectral and dynamical characterization of one-dimensional transmission holographic volume phase gratings, whose refractive index contrast and nanometric pitch are dynamically controlled by an incident laser light. The grating is obtained by the photo-polymerization of a recently developed photo-mobile holographic composite polymer material. The observed changes in the refractive index contrast and grating pitch strongly suggest that the reversible all-optical real-time modulation of the obtained diffraction efficiency is induced by nano-fluidics.
