Related Experiment Video
Updated: Jun 12, 2026
09:33
Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
Published on: June 7, 2019
Design of an achromatic beam splitter comprising a dielectric multilayer stack
Applied Optics
|June 22, 2010
Summary
This study presents a new method for designing achromatic beam splitters using a mixed series expression for multilayer stacks. The method allows for precise control over reflectance-to-transmittance ratios in visible and near-infrared applications.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Multilayer optical coatings are crucial for various photonic devices.
- Designing achromatic beam splitters with specific reflectance-to-transmittance ratios presents a challenge.
Purpose of the Study:
- To develop a theoretical framework for designing achromatic beam splitters.
- To enable precise control over reflectance (R) and transmittance (T) ratios.
Main Methods:
- Utilizing an inverse transmittance (1/T) expression as a mixed series in sinø and cosø.
- Defining the phase angle ø relative to a reference wavelength (λ₀).
- Focusing on the selection of practically achievable refractive indices.
Main Results:
- The developed expression facilitates the design of achromatic beam splitters.
- Achieved various reflectance-to-transmittance ratios (e.g., 70:30, 30:70, 50:50).
- Designs are applicable to visible and near-infrared regions.
Conclusions:
- The mixed series expression provides a robust method for achromatic beam splitter design.
- The approach allows for tailored optical performance with realisable material properties.
