Single Domain LiNbO3 Thin Films Integration via a Seed Layer Approach

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2021-WANG-69382
Researchers at Purdue University have developed a new method for single domain lithium niobate (LiNbO3) thin films integration via a seed layer approach. Currently, twin free single domain-like growth is achievable but requires conditions that are challenging to replicate. Purdue researchers introduce a single laser pulsation technique for growing LNO films with comprehensive microstructure. This process also eliminates traditional need for etching which can cause limitations in thin film materials. These films can be implemented in optics, acoustics, and electronics to reduce losses and optimize efficiency.

Advantages:
-Single Approach
-Low-Cost
-Highly Efficient
-Optimizes and Retains LNO Material Properties

Potential Applications:
-Optical Waveguides
-Surface Acoustic Wave (SAW) Devices
-Acoustic and Electro-Optic Modulators
-Second Harmonic Generators
-Optical Switches
-Pockels Cells
-Q-switched Laser Devices
-Optical Parametric Oscillators
-Telecommunications

Technology Validation:
The growth conditions for the new LNO thin films developed by Purdue researchers have been optimized for ease of replication and integrated into a potential RF application showing promise for additional electro-acoustic applications.

Recent Publication:
"Technology Uses 'Single' Approach to Develop Electronics, Acoustics"
Purdue University, Research Foundation News
https://www.purdue.edu/newsroom/releases/2021/Q1/technology-uses-single-approach-to-develop-electronics,-acoustics.html ‚Äč
Feb 23, 2021
Provisional-Gov. Funding
United States
(None)
(None)
Purdue Office of Technology Commercialization
The Convergence Center
101 Foundry Drive, Suite 2500
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486
Email: otcip@prf.org