Binary beam splitter.

Area of Science:

• Optics and Photonics
• Diffractive Optics
• Optical Engineering

Background:

• Diffractive optical elements (DOEs) are crucial for manipulating light.
• Achieving uniform energy distribution in specific regions is a key challenge in DOE design.
• Elliptical beam shaping is required in various applications, including laser processing and optical trapping.

Purpose of the Study:

• To propose a novel method for designing diffractive beam splitters.
• To achieve uniform distribution of diffraction orders within a user-defined elliptical region.
• To experimentally validate the performance of the designed diffractive beam splitter.

Main Methods:

• A computational method was employed to design the diffractive beam splitter.
• The design algorithm focused on optimizing the phase profile to control diffraction orders.
• Fabrication and experimental testing of the designed optical element were performed.

Main Results:

• The designed diffractive beam splitter successfully distributed diffraction orders uniformly within the target elliptical region.
• Experimental measurements validated the predicted beam profile and energy distribution.
• The optical element demonstrated high performance in controlling light propagation.

Conclusions:

• The proposed design method is effective for creating diffractive beam splitters with uniform elliptical output.
• This technique offers a viable solution for applications requiring precise control over light distribution.
• The experimental validation confirms the practical applicability of the developed optical element.