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  • 1
    Electronic Resource
    Electronic Resource
    Combination of Maker fringe and total reflection technique: Nonlinear optical properties of 4-nitro-2-ethoxyamide-4′-benzyloxytolane (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 550-553 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A new approach to measure the optical second-order nonlinear coefficient tensor of material which is difficult to prepare as a large single crystal is demonstrated. In such a case, due to the limitation of the crystal direction the Maker fringe measurement cannot provide each tensor component but instead yields an effective value. A technique using the second-harmonic generation with evanescent wave (SHEW) makes up for the Maker fringe result. We have applied the measurements to the organic material 4-nitro-2-ethoxyamide-4′benzyloxytolane (NEBT). The combined results from different measurements clarify the nonlinear optical character of NEBT molecules and the largest component of the optical second-order coefficient tensor was obtained to be 39±8 pm/V. The combination of the Maker fringe and the SHEW technique can be a powerful tool. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.364218
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  • 2
    Electronic Resource
    Electronic Resource
    Fluorescence characterization of ablated polymeric materials: Poly(methyl methacrylate) doped with 1-ethylpyrene (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 67 (1990), S. 2240-2244 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Fluorescence spectra and rise as well as decay curves of 1-ethylpyrene (EPy) in poly(methyl methacrylate) films changed using a XeCl (308-nm) excimer laser as an ablation source. This phenomenon was observed not only for the ablated area but also for the masked region of about 20 μm around the ablated area and was attributed to the change of the dispersion condition of EPy. Effects of laser ablation upon properties of polymer films were elucidated by analyzing fluorescence dynamics using a microscope and under a total internal reflection condition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.345538
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  • 3
    Electronic Resource
    Electronic Resource
    Near-Field Optical Microscope with Tapping Illumination and Synchronous Detection (1999)
    Springer
    Optical review 6 (1999), S. 242-244 
    Details
    ISSN: 1349-9432
    Keywords: near-field optics ; scanning microscopy ; lock-in detection ; phthalocyanine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We use the tapping illumination and synchronous detection in a scanning near-field optical microscopy to obtain a near-field optical signal that is separated from the far-field signal. The illumination light was irradiated from the bent fiber tip vibrating normal to the sample surface. The transmitted light synchronized with the tapping vibration was observed. The obtained image of an organic film shows that this technique is effective for the weak contrast samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s10043-999-0242-x
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    Paper (German National Licenses)
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