LYSB Borate Nonlinear Optical Crystals

Summary

 

Technology Description

 

The current invention provides novel compositions and methods of producing aluminum-borate NLO crystals with highly controlled compositions of dopants and minimal undesirable contaminants. These NLO crystals can generate an output wavelength of less than 300nm and in some embodiments, less than 175nm.

 

Features & Benefits

 

  • Minimal contaminants
  • Wavelengths less than 200nm

 

Applications

 

  • Industrial processes
  • Semiconductor manufacturing
  • Microlithography

 

Background of Invention

 

The optical properties of nonlinear optical (NLO) materials are modified by light passing through the materials. The modification of the optical properties may be caused by an induced polarization that acts as an oscillating dipole. If the polarization is nonlinear, the frequency of the light emerging from the material may be some integer value times the frequency of the incident light. For example, the net effect of frequency doubling is that two photons with a given frequency combine to generate a single photon having double that frequency. In such a manner, NLO materials can be used to generate lasers in the UV region of the spectrum which would have great utility in a broad range of applications. Aluminum-borate NLO crystals grown with conventional techniques are generally limited to the generation or emission of light at wavelengths greater than 370 nm, so there is a need for materials that can generate emission at shorter wavelengths.

 

 

Status

 

US Patents No. 7,534,377; 8,062,420; and 9,228,273

 

Patent Information:
Tech ID:
OSU-02-24
Category(s):
Materials Science
Contact:
David Dickson
IP & Licensing Manager
Oregon State University
david.dickson@oregonstate.edu
Inventors:
Douglas Keszler
Ning Ye
Jennifer Stone-Sundberg
Michael Hruschka
Keywords:
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