Development of Linear and Non-linear Optical Materials Based on Sol-Gels Doped with Functional Materials
Abstract
The purpose of the project was to study routes for doping functional materials in Sol-Gel matrices. Sol-Gel materials were produced and doped with functional materials such as carbon nanotubes (CNT) and 2 photon absorption (2PA) chromophores. The dye : Sol-Gel solution was cast and optical filters were fabricated. The obtained filters were polished, and their spectral properties studied. The samples were sent to Dr. Thomas Cooper, Air Force Research Laboratory (AFRL), Wright-Patterson Air Force Base OH, for additional nonlinear spectroscopic studies.The following routes for doping functional materials in Sol-Gel matrices were studied: Sol-Gel doped with CNT and 2PA chromophores; Sol-Gel doped with 2PA platinum complex (E1-BTAF-OH) chromophore supplied by AFRL; Enhancing NLO properties by controlling the singlet-triplet transition of E1-BTAF-OH doped in Sol-Gel. The main achievement was succeeding to control the singlet-triplet intersystem-crossing (ISC) of AFRL 2PA chromophore, E1-BTAF-OH, doped in fast Sol-Gel (FSG) matrix. We succeed by modifying the FSG, to a more aromatic matrix, to convert the 2PA chromophore from its singlet-state form to its triplet-state form. The Sol-Gel matrix modification was achieved by adding tri-methoxy-phenyl-silane (TMPS) precursors to the Sol-Gel production process. A high optical quality Sol-Gel disc with triplet-state chromophore form was obtained. The sample was sent to Thomas Cooper at AFRL for additional NLO characterization to test the enhancement of the NLO properties.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 08, 2021
- Accession Number
- AD1133608
Entities
People
- Galit Bar
- Ilan Sokolov
- Raz Gvishi