GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Observation of a long range surface mode with a polymer/silver/polymer multilayer (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 1011-1013 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The excitation of a long range surface mode in the visible region is reported. Using a vacuum evaporated silver film in a nearly symmetric embedding of two spincoated polymer films, a full spectrum of resonance lines in the angular reflectivity of the multilayer is recorded. In addition to the plasmon resonance of the Ag layer and the metal film enhanced leaky modes of the outer polymer film, the additional resonance is identified. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.364228
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Comparison of isotropic and anisotropic sensor effects in polymer lightguides (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 18-22 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A method for measuring the effective birefringence of polymer lightguides is shown to be a useful tool for chemical sensors. It is demonstrated that the method can be either the nonlinear response of an initially anisotropic lightguide on a linear effect of an in-diffusing compound or a stress induced birefringence in an initially isotropic polymer film. The samples used were polyimide for the anisotropic case and the allyl polymer poly(diallylic terephtalic acid) for the isotropic material. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.363840
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Increasing the accuracy of liquid analysis and pH-value control using a liquid-core waveguide (1997)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 68 (1997), S. 2167-2171 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A liquid-core waveguide (LCW) with pure water as core material has been fabricated by coating the inner core of a glass tube with Teflon AF® 2400. Its guiding properties are proven and the guiding losses are determined to be 0.016 dB/cm. A first theoretical model is proposed and its validity is shown by comparing theoretical and experimental results. As an example for application the LCW system is used for optical pH-value control. The proposed LCW system exhibits the same accuracy for pH-value determination as commercial electrochemical pH meters. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1148068
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Opto-optical switching in ion-implanted poly(methyl methacrylate)-waveguides (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 3123-3126 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Implantation of 1-MeV and 2-MeV He+ in bulk poly-(methyl methacrylate) (PMMA) leads to the formation of monomode and multimode lightguides in the range of 1012–1014 ions/cm2. The waveguide profiles are measured in pure PMMA and in PMMA doped with some wt% of the azo dye Methyl-Red. Although parts of the dye molecules are destroyed in the implanted region, a residual dye concentration is maintained to obtain photoinduced TRANS-CIS isomerization, a change between two spatial forms of the molecule, in the guide area. This is demonstrated by switching the coupling intensity of the guided light by an exposure to blue light in the coupling zone of a prism coupler.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.350974
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Ferroelectric layers for the stabilization of poled polymer films (1991)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 58 (1991), S. 678-680 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A method for measuring the in situ poling and relaxation of an electro-optic polymer lightguide is presented. The poling/relaxation of a single film is compared with the behavior of the same film in the vicinity of a ferroelectric composite sublayer. The stability of the dye orientation obtained by poling is controlled by the ferroelectric substrate. Thus the stability of dye orientation in an electro-optic polymer may be enhanced.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.104566
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Ion implantation, a method for fabricating light guides in polymers (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 2517-2521 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Li+ and N+ ions were implanted into aliphatic polymethylmethacrylate (PMMA), polyvinylalcohol (PVA), and aromatic polyimide (PI) polycarbonate (PC) polymers in the energy range of 100–130 keV. Planar optical waveguides guiding between one and three modes were formed. For low implantation doses (≤ 1014 ions/cm2), total waveguide loss values at λ=633 nm were found to be less than 2 dB/cm. The changes in the refractive index were found to be very large (Δn≥0.05) in the case of PMMA and PVA. We interpret this change in refractive index as being due to the formation of aromatic compounds in the regions of electronic scattering.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.341032
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Monitoring humidity by polyimide lightguides (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 52 (1988), S. 778-779 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Planar waveguides of the commercially available polyimide "PI 2566'' and polyamide-imide "AI lite'' are spin coated on glass substrates. TE and TM polarized modes are launched simultaneously into the phase-matched planar lightguide. This polymer guide is sensitive to changes in its birefringence. Polyimide films in the "as-dried'' and fast cured state turn out to be very sensitive to moisture. Changes in the vicinity of the waveguide can be monitored instantly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.99281
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Recording a reversible photoinduced birefringence in a lightguide (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 53 (1988), S. 2017-2018 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Planar waveguides of the azo dye methyl-red in poly(methyl methacrylate) were spin coated on quartz glass. The transmission of simultaneously launched TE and TM modes (wavelength of the guided light: λ=633 nm) is studied under exposure to blue laser light (λ=488 nm). The guided light may be modulated by the exposing light at low speeds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.100326
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Optical determination of molecule diffusion coefficients in polymer films (1998)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 73 (1998), S. 2887-2889 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We present a method using surface-plasmon leaky mode spectroscopy for the analysis of the vapor–molecule diffusion process in polymer films leading to the diffusion coefficients of the molecules. The solution of the diffusion differential equation in the case of thin films yields a molecule concentration profile. Linearity between refractive index increase and molecule concentration gives the same variation for the index increase. Thus, a theoretical expression for the measured reflectivity can be derived using the transfer-matrix formalism for layered media, and theoretical fits to measured reflectivity data finally yield the corresponding diffusion coefficients. For the polymer Teflon®AF1600 diffusion coefficients for benzene and toluene are determined to 4.9×10−10 and 2.7×10−10 cm2/s, respectively. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.122619
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Optimized leaky mode spectroscopy with a single planar film (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 77 (2000), S. 2674-2676 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A transparent dielectric layer coated on a high refractive index prism forms a planar leaky waveguide. The leaky mode spectrum of this layer strongly depends on the imaginary part of the layer refractive index κ. As an example the leaky mode spectrum of a doped polymer layer is studied theoretically and experimentally. For κ=0 no modes are detectable. In the range of κ(approximate)10−4, so-called "optimized leaky modes," can be observed while, in the range κ≥10−3, broad resonances with reduced reflectivity can be observed. The imaginary part of the polymer refractive index was adjusted by doping with the dye malachit green with an absorption maximum at λ=620 nm. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1319512
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...