Waveguiding in spun films of soluble polydiacetylenes

Townsend, P. D.; Baker, G. L.; Schlotter, N. E.; Klausner, C. F.; Etemad, S.
November 1988
Applied Physics Letters;11/7/1988, Vol. 53 Issue 19, p1782
Academic Journal
In prism coupling experiments, the guiding of 1.06 μm light over 3 cm pathlengths was demonstrated in thin spun films of soluble polydiacetylenes. From measurements of the intensity of scattered light, we estimate the transmission losses in the films were as low as 1 dB/cm. Although spun films appeared isotropic when examined under polarized light, the coupling angle observed for the TM waveguide mode was ∼6° higher than that of the TE mode, implying that the films were istropic in the plane of the film, but the refractive index normal to the plane of the film was lower.


Related Articles

  • Optical waveguide formed by cubic silicon carbide on sapphire substrates. Tang, Xiao; Wongchotigul, Kobchat; Spencer, Michael G. // Applied Physics Letters;3/4/1991, Vol. 58 Issue 9, p917 

    Demonstrates optical confinement in beta silicon carbide (beta-SiC) thin films on sapphire substrate. Performance of measurements on waveguides formed by the mechanical transfer of thin beta-SiC films to sapphire; Technological viability of optoelectronic devices from silicon carbide; Far-field...

  • Photochemical laser writing of polymeric optical waveguides. Beeson, K.W.; Horn, K.A.; McFarland, M.; Yardley, J.T. // Applied Physics Letters;5/6/1991, Vol. 58 Issue 18, p1955 

    Describes a rapid one-step laser writing process for forming optical channel waveguides by photochemically lowering the index of refraction in selected areas of thin, highly photosensitive polymeric films. Demonstration of the concept by forming single- and multi-mode waveguides in films...

  • Surface-emitted green light generated in Langmuir-Blodgett film waveguides. Booshard, Ch.; Otomo, A. // Applied Physics Letters;4/18/1994, Vol. 64 Issue 16, p2076 

    Examines the surface-emitted green light generated in planar waveguides of 2-docosylamino-5-nitropyridine (DCANP). Use of Langmuir-Blodgett techniques to deposit DCANP molecules; Occurrence of propagation loss in planar waveguides; Details on linear and nonlinear properties of DCANP.

  • An exact wave-optics analysis of optical waveguide with anisotropic and gyrotropic materials. Chung, Sang-Koo; Kim, Sang-Seol // Journal of Applied Physics;6/15/1988, Vol. 63 Issue 12, p5654 

    Focuses on a study which presented a wave-optics analysis of wave propagation in thin-film optical waveguide with gyrotropic and anisotropic materials as waveguide film or substrate. Determination of the field distribution and phase velocity of the eigenmodes of the guide; Examination of the...

  • Collinear interaction of the optical waveguide modes and surface magnetostatic waves in a Lu2.14Bi0.86Fe4.94Mg0.06O12 film. Matyushev, V. V.; Stashkevich, A. A.; Desvignes, J. M. // Journal of Applied Physics;4/15/1991, Vol. 69 Issue 8, p5972 

    Reports on the maximum diffraction efficiency per unit microwave power achieved in experiments on the interaction of optical waveguide modes with magnetostatic waves (MSW) in ferrimagnetic films. Achievement of the high efficiency interaction of the films; Colinear propagation of the surface...

  • Demonstration of reverse symmetry waveguide sensing in aqueous solutions. Horváth, Róbert; Pedersen, Henrik C.; Larsen, Niels B. // Applied Physics Letters;9/16/2002, Vol. 81 Issue 12, p2166 

    A reverse symmetry waveguide is presented for evanescent wave sensing in aqueous solutions. The waveguide consists of a thin polystyrene film, supported by a thicker substrate layer of nanoporous silica on glass. The nanoporous substrate layer has a refractive index of n[sub s]=1.193, hence,...

  • Visible to near-infrared femtosecond dynamics of photoexcited gap states in substituted polyacetylenes. Takeuchi, Satoshi; Masuda, Toshio; Kobayashi, Takayoshi // Journal of Chemical Physics;8/15/1996, Vol. 105 Issue 7, p2859 

    Visible to near-infrared transient spectra were measured for thin films of three substituted polyacetylenes with a time-resolution ⩽300 fs. A hot self-trapped exciton (STE) and an oppositely charged, spatially confined soliton-antisoliton pair were temporally and spectrally resolved in...

  • Evidence for trans-polyacetylene in nanocrystalline diamond films from H–D isotropic substitution experiments. Pfeiffer, R.; Kuzmany, H.; Salk, N.; Günther, B. // Applied Physics Letters;6/9/2003, Vol. 82 Issue 23, p4149 

    Raman spectra of nanocrystalline diamond (NCD) films show a peak around 1140 cm[SUP-1] that is usually considered to be a fingerprint of a NCD phase in the sample. From recent studies, it was suggested that this line is due to trans-polyacetylene in the films. We present Raman spectra of...

  • Versatile waveguide polarizer incorporating an ultrathin discontinuous silver film. Bloemer, Mark J.; Haus, Joseph W. // Applied Physics Letters;10/5/1992, Vol. 61 Issue 14, p1619 

    Presents a versatile waveguide polarizer. Incorporation of an ultrathin discontinuous silver film in the polarizer; Presence of a large bandwidth in the polarizer; Comparison of the theoretical analysis of the film properties and waveguide propagation losses with the experiments.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics