Optimization of liquid crystal displays behavior in optical image processing and in diffractive optics

Juan Campos; Andres Marquez; Josep Nicolas; Ignacio Soriano Moreno; Claudio C. Iemmi; Juan C. Escalera; Jeffrey A. Davis; Maria Josefa Yzuel

doi:10.1117/12.449679

30 November 2001 Optimization of liquid crystal displays behavior in optical image processing and in diffractive optics

Juan Campos, Andres Marquez, Josep Nicolas, Ignacio Soriano Moreno, Claudio C. Iemmi, Juan C. Escalera, Jeffrey A. Davis, Maria Josefa Yzuel

Author Affiliations +

Proceedings Volume 10302, Optoelectronic Information Processing: Optics for Information Systems: A Critical Review; 103020H (2001) https://doi.org/10.1117/12.449679
Event: Optoelectronic Information Processing: Optics for Information Systems, 2002, Valencia, Spain

Abstract

In this paper we will revise the application of twisted nematic liquid crystal displays (TN-LCD) as spatial light modulators (SLM) for image processing and diffractive optics. In general two kind of responses are desired for the mentioned applications: amplitude-only and phase-only modulation. In general the users of commercially available LCDs do not know the optical properties of the used material. Thus, a reverse-engineering approach is needed to optimize the LCD response. First, we show a simplified model, that we recently proposed, for the orientation of the LC molecules. The model allows the determination of the physical parameters of the LCD by means of simple intensity measurements. Second, we demonstrate the capability of the model to provide very accurate predictions of the optical transmission. Therefore, we can perform computer searches for the optimum orientation of the added polarizing elements to obtain the required optical transmission. We demonstrate the need to insert wave plates in front and behind the LCD to obtain either amplitude-only or phase-only regimes with the LCD. Finally, we show the application of the optimized LCD to display images and filters in optical image processing, as well as we show the design of diffractive optical elements and apodizers.

Citation Download Citation

Juan Campos, Andres Marquez, Josep Nicolas, Ignacio Soriano Moreno, Claudio C. Iemmi, Juan C. Escalera, Jeffrey A. Davis, and Maria Josefa Yzuel "Optimization of liquid crystal displays behavior in optical image processing and in diffractive optics", Proc. SPIE 10302, Optoelectronic Information Processing: Optics for Information Systems: A Critical Review, 103020H (30 November 2001); https://doi.org/10.1117/12.449679

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available