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Preparation of Liquid Crystal Networks for Macroscopic Oscillatory Motion Induced by Light
Published on: September 20, 2017
Azobenzene liquid crystal polymer-based membrane and cantilever optical systems
Svetlana V Serak1, Nelson V Tabiryan, Timothy J White
1BEAM Engineering for Advanced Measurements Co., 809 South Orlando Avenue, Suite I, Winter Park, Florida 32789, USA.
Optics Express
|September 3, 2009
Summary
Optically deformable azobenzene liquid crystal polymer networks (azo-LCN) enable dynamic control of laser beams through light-induced shape changes. This research showcases practical applications in optical systems, including beam steering and focusing.
Area of Science:
- Materials Science
- Optics
- Polymer Chemistry
Background:
- Dynamic optical systems require responsive materials for beam manipulation.
- Azobenzene liquid crystal polymers (azo-LCN) offer light-induced shape-changing capabilities.
- Controlling laser beam propagation necessitates advanced material functionalities.
Purpose of the Study:
- To demonstrate optically deformable membranes and cantilevers using azo-LCN materials.
- To explore laser beam modulation through light-induced material shape changes.
- To showcase practical applications in dynamic optical systems.
Main Methods:
- Fabrication of azo-LCN membranes and bimorph cantilevers.
- Utilizing photoisomerization in azo-LCN to induce local changes in liquid crystalline order.
- Investigating laser-induced macroscopic shape changes for optical control.
Main Results:
- Demonstrated focusing and defocusing effects using azo-LCN membranes.
- Achieved laser beam steering with azo-LCN/metal bimorph cantilevers.
- Showcased surface-initiated bending and blocking of laser beams with high speed and large angles.
Conclusions:
- Azo-LCN materials provide significant nonlinearity and photosensitivity for optical applications.
- The demonstrated concepts are highly practical for dynamic optical systems.
- Light-controlled shape deformation of azo-LCN offers a versatile platform for optical manipulation.
