Modeling of scattering and depolarizing electro-optic devices. II. Device simulation.

Area of Science:

• Optoelectronics
• Computational Physics
• Materials Science

Background:

• Accurate modeling of electro-optic (EO) devices is crucial for their design and optimization.
• Existing models may not fully capture complex optical phenomena like scattering and depolarization in arbitrary geometries.

Purpose of the Study:

• To develop and validate a simple yet accurate computer simulation method for arbitrary-geometry electro-optic devices.
• To incorporate material electro-optic properties, including refractive index changes, scattering, and depolarization, into the simulation model.

Main Methods:

• Utilized finite-element analysis to compute electrostatic field distributions for EO device designs.
• Modeled light intensity attenuation due to scattering as an exponential function.
• Quantified depolarized light intensity as a function of scattering intensity.
• Calculated total optical transmittance by integrating optical values across all simulation elements.

Main Results:

• Developed a material electro-optic model encompassing scattering and depolarization effects.
• Successfully simulated lanthanum-modified lead zirconate titanate-based surface-electrode and transverse-electrode EO devices.
• Experimental performance of fabricated devices showed excellent agreement with simulation results.

Conclusions:

• The proposed computer simulation method provides accurate predictions for electro-optic device performance.
• The model effectively accounts for key optical phenomena, enabling reliable design and analysis of complex EO devices.