Journal ArticleDOI
Nonresonant third order susceptibility measurements in a nematic liquid crystal‐PCH‐5
John Philip,T. A. Prasada Rao +1 more
TLDR
In this paper, the real part of the third order nonlinear susceptibility χ(3) above the nematic to isotropic phase transition temperature of a nematic liquid crystal 4 (trans‐4'−4'n'n−pentylcyclohexy)‐benzonirtile (PCH‐5) from electro-optic Kerr effect experiments was determined.Abstract:
We report for the first time the determination of the real part of the third order nonlinear susceptibility χ(3)(−ω;ω,0,0) above the nematic to isotropic phase transition temperature of a nematic liquid crystal 4 (trans‐4’‐4’‐n‐pentylcyclohexy)‐benzonirtile (PCH‐5) from electro‐optic Kerr effect experiments. The value of χ(3) observed at 632.8 nm is found to be 6.2079×10−19 m2 V−2 close to the phase transition temperature at 55.1 °C.read more
Citations
More filters
Journal ArticleDOI
Organic Materials for Third‐Order Nonlinear Optics
TL;DR: The current status of organic low-molecular weight and polymeric materials for third-order nonlinear optics is reviewed in this paper, where the importance of organic materials lies in their promise of large nonlinear optical figure of merit, high optical damage thresholds, ultrafast optical responses, architectural flexibility, and ease of fabrication.
Journal ArticleDOI
Electro-optical Kerr effect of two high birefringence nematic liquid crystals
TL;DR: In this article, a new tolane-base liquid crystal, 4'-heptyl-3-fluoro-4-isothiocyanatotolane (7TOLF), and a biphenyl-base nematogen, 7BF, have been investigated for the first time to determine their electro-optical behavior and third order non-linearity using the static Kerr effect method.
Journal ArticleDOI
Studies on electrical and photoelectrical behaviour of ITO/ArV/In Schottky barrier device
TL;DR: The electrical and photoelectrical properties of aryl viologen (ArV), chemically known as 1,1′-diphenyl-4,4′-bipyridinium dichloride, in the form of thin film, sandwiched between ITO and In electrode were studied.
Journal ArticleDOI
Nonresonant third-order susceptibility measurements in the nematic liquid crystal K18
John Philip,T. A. Prasada Rao +1 more
TL;DR: In this article, a large nonresonant third-order nonlinear susceptibility, X(3) (-ω; ω, 0, 0) was observed in the isotropic phase of a nematic liquid crystal 4′-n-hexyl-4-cyanobiphenyl (K18).
Journal ArticleDOI
Third-order Susceptibility Measurements in a Nematic Liquid Crystal—K15
John Philip,T. A. Prasada Rao +1 more
TL;DR: In this paper, the real part of the third-order nonlinear susceptibility, x (3), was determined from electro-optic Kerr effect experiments in the isotropic phase of a nematic liquid crystal 4′-n-pentyl-4-cyanobiphenyl (K15).
References
More filters
Journal ArticleDOI
Gain enhancement of a microparticle phase conjugator using moving fringes
Suksang Chang,Takuso Sato +1 more
TL;DR: The possibility of increasing the gain of two- and four-wave mixings in an artificial Kerr medium which consist of spherical microparticles suspended in liquid is shown and the dynamic mechanism of hologram formation in such a medium is utilized in connection with the moving fringe method.
Journal ArticleDOI
A high-voltage pulse measuring system based on the Kerr effect
John Philip,T. A. Prasada Rao +1 more
TL;DR: In this paper, the performance of a high-voltage pulse measuring system based on the Kerr effect is investigated with benzoyl chloride, o-nitrotoluene, acetophenone, acetonitrile, benzaldehyde and ethyl methyl ketone along with nitrobenzene and acetone that are well known.
Journal ArticleDOI
An apparatus for quantitative measurements of the optical Kerr effect
A D Buckingham,J H Williams +1 more
TL;DR: In this paper, an apparatus for the measurement of the optical Kerr effect in liquid samples is described and the authors show how more accurate, reproducible results could be obtained with continuous-wave lasers and how the inherent problems of thermal defocusing effects can be overcome.