Electronic nonlinear optical behaviour of a grating coupled polymer (4BCMU) waveguide

Author

Crook, R.J. ; Cotter, N.P.K. ; Sambles, J.R. ; Rangel-Rojo, R. ; Spruce, G. ; Wherrett, B.S.

Author_Institution

Dept. of Phys., Exeter Univ., UK

fYear

1994

fDate

25-29 Jul 1994

Firstpage

218

Lastpage

220

Abstract

The nonlinear optical properties of polydiacetylene (PDA) are of interest both fundamentally and technologically. The nonresonant third order susceptibility χ⁽³⁾ associated with the nonlinear refractive index n₂ has been found to be relatively large (>10^-11 esu) and ultra-fast (<1 ps). Here we show how the reflectivity response of a grating coupled PDA waveguide can be analysed to yield both the real and the imaginary parts of χ⁽³⁾ in a single experiment with the sample in thin film form

Keywords

nonlinear optical susceptibility; nonlinear optics; optical polymers; optical waveguides; reflectivity; refractive index; 1 ps; 4BCMU; electronic nonlinear optical behaviour; grating coupled polymer waveguide; nonlinear optical properties; nonlinear refractive index; nonresonant third order susceptibility; polydiacetylene; Gratings; Nonlinear optics; Optical coupling; Optical films; Optical polymers; Optical refraction; Optical variables control; Optical waveguides; Reflectivity; Refractive index;

fLanguage

English

Publisher

ieee

Conference_Titel

Nonlinear Optics: Materials, Fundamentals, and Applications, 1994. NLO '94 IEEE

Conference_Location

Waikoloa, HI

Print_ISBN

0-7803-1473-5

Type

conf

DOI

10.1109/NLO.1994.470830

Filename

470830