Enhanced Phase-Matched Second-Harmonic Generation in a Ferroelectric Liquid Crystal Waveguide

  title={Enhanced Phase-Matched Second-Harmonic Generation in a Ferroelectric Liquid Crystal Waveguide},
  author={Valentina S. U. Fazio and Vismants Zauls and Sigurd Schrader and Philippe Busson and Anders Hult and Sven T. Lagerwall and Hubert Motschmann},
  journal={Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals},
  pages={293 - 302}
  • V. FazioV. Zauls H. Motschmann
  • Published 22 December 1999
  • Physics
  • Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
Abstract A binary mixture of crosslinkable ferroelectric liquid crystals (FLCs) was used for the design of a channel waveguide. The liquid crystal was aligned in layers parallel to the glass plates (homeotropic) in a sandwich geometry and then the arrangement was permanently fixed by photopolymerization which yielded a polar network possessing a high thermal and mechanical stability. The linear and nonlinear optical properties have been measured and all four independent components of the… 

Dynamic control of the optical properties of a liquid crystal waveguide by means of an applied electric field

The application of Liquid Crystals (LC) to integrated optics is actively investigated because the mechanical and optical properties of these materials can be exploited to realize new schemes of

Phase-matched second harmonic generation and cascaded nonlinearity in a Langmuir-Blodgett inverted waveguide of 2-docosylamino-5-nitropyridine.

We discuss the results of our second harmonic generation (SHG) and nonlinear cascading experiments in organic waveguide. The waveguide is made of two identical Langmuir–Blodgett films with

Ferroelectric Liquid Crystals for Nonlinear Optical Applications

NLO materials have become increasingly indispensable to today’s EO technology. Electro-optics involve these two important technologies (electronics and photonics), and the interdisciplinary field

Field-controlled optical profile of a waveguide having a liquid-crystalline core

The optical properties of a nematic liquid-crystal waveguide in a hybrid configuration have been dynamically reshaped in a straightforward and controlled way by applying an external electric field.

Voltage-controlled phase matching in quadrupole second-harmonic generation.

Strong phase-matched (PM) quadrupole optical second-harmonic generation (SHG) from nematic liquid crystals that possess inversion symmetry is observed.

Optically polymerizable optically active liquid crystal monomer

The invention discloses an optically polymerizable optically active liquid crystal monomer, which comprises an optically active central molecule having a single acrylic group or double acrylic



Efficient phase-matched second-harmonic generation of blue light in an organic waveguide

THE development of materials for the efficient frequency-doubling of low-power semiconductor lasers is a technologically important goal for which several important challenges remain. The ease of

An Approach to the Design of Ferroelectric Liquid Crystals with Large Second Order Electronic Nonlinear Optical Susceptibility

Abstract Ferroelectric liquid crystal thin films in the Clark-Lagerwall surface-stabilized geometry exhibit well known spontaneous polar orientation of functional groups. The symmetry of the system

Second-harmonic generation in a novel crosslinked pyroelectric liquid crystal polymer (PLCP)

We report second-harmonic generation in samples with a pyroelectric liquid crystal polymer (PLCP) prepared from the ferroelectric liquid crystalline acrylate monomer

Novel Thermally Stable Polymer Materials for Second-Order Nonlinear Optics

A novel method of preparing thermally stable thin films with intrinsic second-order nonlinear optical activity is described. Design and synthesis yielded new ferroelectric bifunctional liquid

Second-harmonic light generation in pyroelectric liquid-crystal polymers

Pyroelectric liquid-crystal polymers were prepared by photopolymerization of binary mixtures of two monomers that exhibit a smectic C* phase: A2c,

Additive second-order nonlinear susceptibilities in Langmuir-Blodgett multibilayers: testing the oriented gas model

Langmuir-Blodgett films with an alternating film structure have been fabricated using two different prepolymerized amphiphiles containing the same chromophore of high second-order nonlinear optical

Nonlinear Optical Properties of the Linear Quadrupolar Molecule: Structure−Function Relationship Based on a Three-State Model

Theoretical descriptions of the molecular polarizability and second hyperpolarizability (α and γ) of the linear quadrupolar molecule are presented. By using a valence-bond and two charge-transfer

Submicrosecond bistable electro‐optic switching in liquid crystals

Ferroelectric smectic C (FSC) liquid crystals are used in a simple new geometry that allows the spontaneous formation of either of two surface‐stabilized smectic C monodomains of opposite

All-optical mode mixer spatial switch based on cascading in lithium niobate

An all-optically induced spatial shift in the interference between the two lowest-order modes of a lithium niobate channel waveguide was demonstrated based on the power-dependent nonlinear phase

First hyperpolarizability of new sulfonamide amphiphiles by calculation, and hyper-Rayleigh scattering

The first hyperpolarizability β of the 4-(4′-N-methyl-N-alkylaminophenylazo)-N-(thiazol-2-yl)benzenesulfonamides (1) and 4-(4′-N-methyl-N-alkylaminophenylazo)-N-(pyrimidin-2-yl)benzenesulfonamides