Form 9.B Project Summary

Chron: 972281

Proposal Number: 27.03-3010

Project Title: Laser Pattern Generator for the Fabrication of Blazed Diffractive Profiles on Conformal Surfaces

Technical Abstract (Limit 200 words)

Although many technologies exist for the fabrication of diffractive optical elements (DOEs) on planar surfaces, there does not exist any fabrication method that can produce continuous-relief DOE patterns of arbitrary symmetry on conformal surfaces. Rochester Photonics Corporation (RPC) proposes that a laser pattern generator (LPG) capable of addressing a three-dimensional work volume can address this dilemma. RPC is currently developing a conformal laser pattern generator that is capable of fabricating binary structures. RPC proposes to modify this LPG in order to perform grayscale exposure of photoresist-coated conformal surfaces. The resulting grayscale features can be transferred into a bulk material or into a replication polymer for high-volume production. For arbitrary surface and diffractive geometries, a single-point writing system is the only option. RPC is ideally suited to develop such a technology since it has five years experience in LPG-writing of planar continuous-relief structures, having designed and fabricated two LPG machines. The developed technology for patterning conformal surfaces will give optical designers increased design freedom, result in more compact optical systems, and will benefit such applications as curved focal plane arrays, wavelength demultiplexing, and imaging spectrometers.

Potential Commercial Applications (Limit 200 words)

The developed technology will give optical designers increased design freedom, result in more compact optical systems, and will benefit such applications as curved focal plane arrays, wavelength demultiplexing, and imaging spectrometers.

Name and Address of Principal Investigator (Name,

Organization Name, Mail Address, City/State/Zip)

Daniel H. Raguin

Rochester Photonics Corp.

330 Clay Road

Rochester , NY 14623

Name and Address of Offeror (Firm Name, Mail Address,

City/State/Zip)

Joachim Bunkenburg

Rochester Photonics Corporation

330 Clay Road

Rochester , NY 14623