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Holographic polymer-dispersed liquid crystal memory for optically reconfigurable gate array using subwavelength
Akifumi Ogiwara1, Minoru Watanabe, Takayuki Mabuchi
1Department of Electronic Engineering, Kobe City College of Technology, 8-3 Gakuen-higashi, Kobe 651-2194, Japan. ogiwara@kobe‐kosen.ac.jp
Applied Optics
|December 24, 2011
Summary
This study introduces holographic polymer-dispersed liquid crystal (HPDLC) memory using subwavelength gratings (SWG) for optical information processing. This novel HPDLC memory enables parallel programming of optically reconfigurable gate arrays (ORGAs).
Area of Science:
- Optoelectronics
- Materials Science
- Information Processing
Background:
- Subwavelength gratings (SWG) offer unique optical properties.
- Holographic polymer-dispersed liquid crystals (HPDLCs) are suitable for optical memory applications.
- Optically reconfigurable gate arrays (ORGAs) require efficient configuration storage methods.
Purpose of the Study:
- To develop a new optical information processing method using HPDLC memory.
- To utilize SWG masks for creating HPDLC memory with polarization modulation capabilities.
- To demonstrate parallel programmability for ORGA configuration storage.
Main Methods:
- Fabrication of SWG structures on SiO(2) plates using anisotropic reactive ion etching.
- Formation of HPDLC memory incorporating the SWG photomask.
- Storing configuration contexts for ORGAs via polarization modulation based on form birefringence.
- Reconstruction of stored patterns for parallel ORGA programming.
Main Results:
- Successful formation of HPDLC memory utilizing SWG masks.
- Demonstration of polarization modulation property based on SWG form birefringence.
- Storage and reconstruction of configuration patterns for ORGAs.
- Achieved parallel programmability for ORGA configurations.
Conclusions:
- HPDLC memory formed with SWG masks presents a novel approach for optical information processing.
- The polarization modulation property of SWG-based HPDLC memory enables efficient ORGA configuration.
- This technology facilitates parallel programming for advanced optical computing architectures.
