Using holographically generated corrector plates to fabricate low f/No. HOE objectives and collimators

Area of Science:

• Optics and Photonics
• Holography
• Optical Engineering

Background:

• Holographic Optical Elements (HOEs) offer unique advantages in optical system design.
• Fabricating HOEs for specific wavelength applications often presents challenges with aberrations.
• Existing methods may require complex adjustments or specialized materials.

Purpose of the Study:

• To present a double wavelength shift recording scheme for fabricating HOE objectives and collimating lenses.
• To enable the use of lenses fabricated at intermediate wavelengths for longer wavelength applications.
• To introduce a method for compensating HOE aberrations using a corrector plate.

Main Methods:

• A double wavelength shift recording scheme was developed.
• Lenses were fabricated at intermediate wavelengths.
• A holographic corrector plate was generated using a shorter wavelength.
• The corrector plate was integrated into the HOE construction beam path.

Main Results:

• The described scheme successfully constructs HOE objectives and collimating lenses.
• The method allows for the fabrication of lenses at intermediate wavelengths for use in longer wavelength regions.
• Aberrations in the HOE were effectively compensated by the corrector plate.

Conclusions:

• The double wavelength shift recording scheme is a viable method for producing high-performance HOEs.
• This technique offers a practical solution for aberration correction in HOE fabrication.
• The method facilitates the design of HOEs for diverse spectral applications.