Related Experiment Video
Updated: Jan 28, 2026

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
Published on: September 26, 2014
Two-photon absorption properties of BODIPY-like compounds based on BF2-naphthyridine complexes
Jessica Dipold1, Eduardo E Romero2, Julie Donnelly2
1Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil. crmendon@ifsc.usp.br.
Researchers developed novel boron-complexes to enhance two-photon absorption for nonlinear optics. These BF2-naphthyridine molecules show significantly improved cross-sections, opening new possibilities for optical applications.
Area of Science:
- Organic Chemistry
- Materials Science
- Nonlinear Optics
Background:
- Boron dipyrromethene (BODIPY) molecules are versatile but often lack high two-photon absorption (TPA).
- Limited TPA cross-sections restrict BODIPYs' utility in nonlinear optical (NLO) applications.
Purpose of the Study:
- To design and synthesize novel BF2-naphthyridine boron-complexes.
- To enhance two-photon absorption (TPA) properties for NLO applications.
- To investigate the effect of electron-donating and withdrawing groups on TPA.
Main Methods:
- Synthesis of BF2-naphthyridine based boron-complexes.
- Spectroscopic characterization of the synthesized compounds.
- Measurement of two-photon absorption cross-sections.
Main Results:
- Achieved two-photon absorption cross-sections up to approximately 270 GM.
- Demonstrated a five-fold increase in TPA cross-section compared to similar molecules.
- Identified compounds suitable for NLO applications in visible and infrared regions.
Conclusions:
- The novel BF2-naphthyridine boron-complexes exhibit significantly enhanced two-photon absorption.
- These compounds are promising candidates for advanced nonlinear optical materials.
- The findings pave the way for new applications in photonics and optoelectronics.
Related Concept Videos
Properties of Organometallic Compounds
Organic Compounds
Coordination Compounds and Nomenclature
Molecules and Compounds
Drug Absorption: Factors Affecting GI Absorption
Solubility of Ionic Compounds

