Correlation between Nonlinear Optical Effects and Structural Features of Aurone-Based Methacrylic Polymeric Thin...

Area of Science:

• Materials Science
• Optics and Photonics
• Polymer Chemistry

Background:

• Advanced optical materials are essential for developing new photonic technologies.
• Methacrylic polymers offer tunable properties for various applications.
• Aurone derivatives are explored for their potential in nonlinear optics.

Purpose of the Study:

• To design and synthesize novel aurone-based methacrylic polymers.
• To investigate the optical and nonlinear optical (NLO) properties of these polymers.
• To understand the structure-property relationships influencing NLO behavior.

Main Methods:

• Polymer synthesis and thin film deposition via spin coating.
• Measurement of second harmonic generation (SHG) and third harmonic generation (THG) using the Maker fringe technique.
• Theoretical quantum chemical calculations of molecular properties (dipole moment, HOMO/LUMO energies, hyperpolarizabilities).

Main Results:

• Successful synthesis of aurone-based methacrylic polymers with tailored optical properties.
• Experimental determination of SHG and THG effects, correlating with theoretical predictions.
• Identification of the influence of specific chemical substitutions on the nonlinear optical response.

Conclusions:

• The designed polymers show promising nonlinear optical characteristics for photonic applications.
• Theoretical calculations effectively predict and explain the observed NLO behavior.
• This research contributes to the rational design of methacrylic-based polymeric thin films for advanced optical devices.