Accession Number : ADA312132

Title :   Novel Liquid Crystalline Structure for Nonlinear Optics.

Descriptive Note : Final rept. Mar 93-Mar 96,

Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Khoo, I. C.

PDF Url : ADA312132

Report Date : 21 MAY 1996

Pagination or Media Count : 13

Abstract : This effort consisted of both theoretical and experimental studies of several novel nonlinear optical phenomena in liquid crystal fiber structure and thin films, exploring their potentials for nonlinear-, electro- and adaptive-optical applications. Continuous and pulsed lasers with pulse durations spanning the nanosecond (ns) to picosecond (ps) regime were employed to study these processes in both the ordered (nematic) and the isotropic (liquid) phases of liquid crystals. The projects completed include: characterization of optical nonlinearities of these liquid crystalline materials, studies of coherent beam amplification, phase conjugation effects, and quantitative characterization of their responses with ns and Ps laser pulses. The nonlinear fiber arrays were shown to be capable of good quality image transmission while serving as an optical limiter for short intense pulses throughout the visible spectrum. This research program has also resulted in the discovery of orientational photorefractive effects which will be relevant to current research and development in adaptive optics and holographic storage systems.

Descriptors :   *NONLINEAR OPTICS, *LIQUID CRYSTALS, EXPERIMENTAL DATA, ELECTROOPTICS, THIN FILMS, ARRAYS, OPTICAL IMAGES, PULSED LASERS, OPTICAL PHENOMENA, LASER BEAMS, TRANSMITTANCE, PULSE RATE, HOLOGRAPHY, VISIBLE SPECTRA, OPTICAL STORAGE, LIMITERS, SHORT PULSES, ADAPTIVE OPTICS, LIGHT AMPLIFIERS, PHASE CONJUGATION.

Subject Categories : Optics
      Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE