Single-pulse ultraviolet laser recording of periodically poled structures in polymer thin films.

A simple fabrication technique for nonlinear polymeric optical waveguide patterns is introduced based on the two-beam interference method. We determined that the second-order nonlinearity of poled polymer films is erased by single-pulse ultraviolet (UV) laser irradiation. The erasure mechanism for second-order nonlinearity is discussed. To form a periodic structure in an optical polymer waveguide, two types of optical configuration of two-beam interference were arranged, and a single-pulse UV laser was exposed directly onto poled films. We prove that this method provides a simple way to fabricate volume-type and ridge-type periodically poled structures, i.e., chi(2) gratings, from the submicrometer to the millimeter range.

[1]  Ultraviolet photobleaching process of azo dye doped polymer and silica films for fabrication of nonlinear optical waveguides. , 1998, Applied optics.

[2]  Y. Kawata,et al.  Fabrication of Surface Relief Grating with Second-Order Nonlinearity Using Urethane-Urea Copolymer Films , 1999 .

[3]  Akira Yabe,et al.  Application of Excimer Laser Polymer Ablation to Alignment of Liquid Crystals: Periodic Microstructure on Polyethersulfone , 1989 .

[4]  Paul Rochon,et al.  Mechanism of Optically Inscribed High-Efficiency Diffraction Gratings in Azo Polymer Films , 1996 .

[5]  Thomas Lippert,et al.  Single pulse nm-size grating formation in polymers using laser ablation with an irradiation wavelength of 355 nm , 1999 .

[6]  R. Fedosejevs,et al.  Direct production of gratings on plastic substrates using 248-nm KrF laser radiation. , 1987, Applied optics.

[7]  Kenneth D. Singer,et al.  Second harmonic generation in poled polymer films , 1986 .

[8]  A. Morimoto,et al.  Femtosecond optical pulse generation using quasi-velocity-matched electrooptic phase modulator , 1996 .

[9]  O. Sugihara,et al.  Direct electron-beam irradiation: a new technique for the erasure of second-order nonlinearity and the fabrication of channel waveguides by use of optical polymeric films. , 1997, Optics letters.

[10]  Kazuo Sano,et al.  High spectroscopic qualities in blazed ion-etched holographic gratings , 1979 .

[11]  Stephen T. Kowel,et al.  Second-harmonic generation and absorption studies of polymer-dye films oriented by corona-onset poling at elevated temperatures , 1989 .

[12]  A. Okada,et al.  Two-step refractive index changes by photoisomerization and photobleaching processes in the films of non-linear optical polyurethanes and a urethane–urea copolymer , 1996 .

[13]  M P Andrews,et al.  Single-step UV recording of sinusoidal surface gratings in hybrid solgel glasses. , 1999, Applied optics.

[14]  S. Nijhuis,et al.  Poled Polymer For Frequency Doubling Of Diode Lasers , 1990, Digest on Nonlinear Optics: Materials, Phenomena and Devices.

[15]  A. Wokaun,et al.  Surface Analysis of Excimer-Laser-Treated Polyethylene-Terephthalate by Surface-Enhanced Raman Scattering and X-Ray Photoelectron Spectroscopy , 1993 .

[16]  Okihiro Sugihara,et al.  Fabrication of χ{2) Grating in Poled Polymer Waveguide Based on Direct Laser Beam Writing , 1998 .

[17]  Itaru Yokohama,et al.  Quasi-phase-matched second-harmonic generation in diazo-dye-substituted polymer channel waveguides , 1997 .

[18]  Laurence Reekie,et al.  High reflectivity ad narrow bandwidth fibre gratings written by single excimer pulse , 1993 .

[19]  Comparison of quasi‐phase‐matching geometries for second‐harmonic generation in poled polymer channel waveguides at 1.5 μm , 1996 .

[20]  E. Schollmeyer,et al.  Surface Structuring of Synthetic Fibres by UV Laser Irradiation, Part I: Phenomenological Report , 1997 .

[21]  G. Meltz,et al.  Formation of Bragg gratings in optical fibers by a transverse holographic method. , 1989, Optics letters.

[22]  Robert A. Norwood,et al.  Phase‐matched second‐harmonic generation in a polymer waveguide , 1989 .

[23]  M. Asobe,et al.  Quasi‐phase‐matched second harmonic generation in a polymer waveguide with a periodic poled structure , 1996 .

[24]  Geoffrey A. Lindsay,et al.  Second‐order nonlinear optical measurements in guest‐host and side‐chain polymers , 1990 .

[25]  R. B. Comizzoli,et al.  Electro‐optic phase modulation and optical second‐harmonic generation in corona‐poled polymer films , 1988 .