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An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
Published on: February 27, 2019
Using the hybrid modulating properties of liquid crystal television
Applied Optics
|August 12, 2010
Summary
This study shows that a liquid crystal television (LCTV) can be used for phase modulation in optical correlators. This method requires a smaller light source and still yields good results for joint transform power spectrum and correlation signals.
Area of Science:
- Optics
- Information Technology
Background:
- Optical correlators are essential for pattern recognition.
- Liquid Crystal Television (LCTV) displays offer potential for optical signal processing.
Purpose of the Study:
- To investigate the phase modulating capabilities of a commercial LCTV.
- To apply these capabilities to a joint transform optical correlator (JTC) architecture.
Main Methods:
- Utilizing a commercial LCTV in a phase modulating mode.
- Integrating the LCTV into a joint transform optical correlator setup.
- Evaluating the joint transform power spectrum and correlation signal quality.
Main Results:
- The LCTV effectively modulates phase in the JTC architecture.
- Phase modulation with LCTV requires a significantly smaller coherent light source.
- Good quality joint transform power spectrum and correlation signals were achieved.
Conclusions:
- Commercial LCTVs are viable for phase modulation in JTCs.
- This approach offers advantages in terms of light source size.
- The method maintains high performance in correlation tasks.
