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  • American Institute of Physics (AIP)  (13)
  • Wiley-Blackwell  (2)
  • Inter-Research
  • Springer Nature
  • 1985-1989  (15)
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  • 1
    Electronic Resource
    Electronic Resource
    Ionic conductivity and mobility in network polymers from poly(propylene oxide) containing lithium perchlorate (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 123-128 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Ionic conductivity σ and mobility μ in the amorphous network polymers from poly(propylene oxide) (PPO) containing lithium perchlorate (LiClO4) at the concentration of [LiClO4]/[PO unit]=0.042 and 0.076 were investigated by means of complex impedance and time-of-flight methods. The σ values of the PPO–LiClO4 complexes reached 10−5 S cm−1 at 70 °C. The temperature dependence of σ deviated from a single Arrhenius behavior above a critical temperature (−1 °C and 11 °C) which approximately corresponded to the glass transition temperature Tg. The μ values were relatively high and changed from 10−6 to 10−5 cm2 V−1 s−1 in the temperature range of 40–100 °C. The Nernst–Einstein equation correlated μ with the ionic diffusion coefficient D. The Williams–Landel–Ferry equation with C1(approximately-equal-to)5 and C2(approximately-equal-to)30–50 held with a temperature dependence of D in the order of 10−8–10−7 cm2 s−1. The change in the number of ionic carriers n with temperature obeyed the Arrhenius equation with the activation energy of 0.26 and 0.34 eV. The degree of dissociation for LiClO4 in the PPO networks was 1–6%, and the dissociation was facilitated in the low LiClO4 concentration complex. The temperature dependence of σ above Tg was interpreted quantitatively in terms of n and μ.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.335386
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  • 2
    Electronic Resource
    Electronic Resource
    Integration of a diode laser and an electronic lens for controlling the beam focus position (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 54 (1989), S. 315-316 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An electronic lens is developed for controlling the focus position of an optical beam without mechanical movement. The lens utilizes the dependence of the lateral index profile on carrier concentration profile in the waveguide layer. The lens is integrated with a diode laser by the cleave-couple technique, and the control of the focus position of the output beam of this device is demonstrated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.100996
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  • 3
    Electronic Resource
    Electronic Resource
    Laser beam scanning using a local deflector integrated with an effective mode filter (1987)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 51 (1987), S. 2091-2093 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Deflection of a diode laser beam using an injection-type deflector monolithically integrated with a very long waveguide is demonstrated. The deflector and the waveguide constitute a laser cavity. The waveguide filters out higher order modes, and only the fundamental-mode light is incident on the deflector. Because the incident light is of a fixed single mode, the deflection of the output beam is very smooth. The deflection mechanism is primarily due to interference between constituent modes for short deflectors, and phase-front tilting of each mode for long deflectors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.98957
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  • 4
    Electronic Resource
    Electronic Resource
    Tunneling microscopy of NbSe2 in air (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 315-318 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have obtained atomic-resolution images of NbSe2 single crystals in air. Constant-height images clearly show the expected atomic structure, and can distinguish the two inequivalent halves of the unit cell. Constant-current images show an anomalously high atomic corrugation, associated with elastic deformation of the sample. Surface contamination probably plays an important role in transmitting the tip-sample forces. A larger-scale apparent buckling of the surface with a period of several times the atomic spacing is sometimes observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.340295
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  • 5
    Electronic Resource
    Electronic Resource
    Property of amplified spontaneous emission and saturable absorber for a terawatt XeCl laser system (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 65 (1989), S. 428-432 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A peak power of 1 TW has been obtained in XeCl with a pulse width of 310 fs and the amplified spontaneous emission (ASE) less than 3% in energy. The property of ASE was analyzed for different gains. Based on this analysis, the ASE coupling between stages was suppressed by using an appropriate spatial filter along with operating at a low-gain level. The saturation characteristics of UV dyes were investigated and analyzed for subpicosecond pulses. BBQ [4,4'''di(2-butyl-octoxy-1)-p-quarter-phenyl)] in cyclohexane showed the satisfactory performance for a saturable absorber in contrast and transmission.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.343123
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  • 6
    Electronic Resource
    Electronic Resource
    Evaluation of ionic mobility and transference number in a polymeric solid electrolyte by isothermal transient ionic current method (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 58 (1985), S. 736-740 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We proposed a new method for evaluating mobilities of both Li+ and SCN− ions in a polymeric solid electrolyte formed by poly (ethylene succinate) and LiSCN. The method is based on the isothermal transient ionic current (ITIC) technique by using an ion-blocking platinum electrode and an ion-reversible lithium electrode. The differences of the ITIC profiles, depending on the kind of the electrodes, provided both mobilities of Li+ and SCN− ions, and their assignment. The mobilities of Li+ and SCN− ions at 90 °C were 1.3–4.2×10−6 cm2 V−1 s−1 and 5.3–10.7×10−8 cm2 V−1 s−1, respectively. The transference number of Li+ ions was 0.92–0.99.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.336191
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  • 7
    Electronic Resource
    Electronic Resource
    Photoacoustic detector for synchrotron-radiation research : INTERNATIONAL CONFERENCE ON SYNCHROTRON RADIATION INSTRUMENTATION (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 2318-2320 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Transient heat generation by absorption of x-ray and far-infrared beams was successfully detected by a photoacoustic detection method. The photoacoustic detectors of solid and gas phase for x rays and of solid materials for far-infrared light are shown together with its instrumentation. The x-ray photoacoustic signal showed a linear dependence on the ring current and ionization chamber current, both of which are the measure of the photon flux. Typical examples of photoacoustic signals were shown, and their characteristics were briefly discussed in relation to the physicochemical properties of the samples. The potential use of this detection method is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140751
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  • 8
    Electronic Resource
    Electronic Resource
    Soft x-ray transmission characteristics of an Au-coated silica hollow-core fiber (abstract) : INTERNATIONAL CONFERENCE ON SYNCHROTRON RADIATION INSTRUMENTATION (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 2250-2250 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Since the real part of the refractive index of silica glass is smaller than unity in the soft x-ray region, it has been shown1–3 that silica-glass hollow-core fibers can transmit soft x rays. However, the transmittance for the silica fibers bent over a 90° were found to be lower than 0.1%. On the other hand, the multilayer metal coating technique has been developed in fabrication of flat mirrors for soft x-ray optics. If suitable multilayers can be deposited on the inner surface of a flexible hollow glass fiber, the transmittance for soft x rays of the fiber is expected to be considerably higher than that of noncoated hollow fibers. It is important to study the transmission characteristics of the hollow-core fiber whose inner surface is coated with metal. In the present study, we report the soft x-ray transmission characteristics of a Au-coated silica hollow-core fiber. The experimental setup is similar to that previously reported.4 The inner diameter of the Au-coated silica fiber used is about 2 mm and its length is 230 mm. The Au coating on the inner surface of the fiber was achieved by chemical plating. We measured the transmittances of the Au-coated silica fiber and a noncoated silica fiber with the same size. We measured the transmittance only for the bend angles smaller than 20°, because these relatively thick silica fibers were broken at about 25°. For a large bend angle (20°), the transmittances of the Au-coated fiber were one order of magnitude lower than that of the noncoated fiber in the short wavelength region below 45 A(ring). In the long wavelength region (longer than 60 A(ring)), the transmittance of the Au-coated fiber was higher than that of the noncoated fiber. At the oxygen K-shell absorption wavelength (23 A(ring)), the strong dip in transmission was observed in the noncoated silica fiber. However, there was not seen a strong dip in the Au-coated fiber. These results, the better transmittance for the long wavelengths, and no dip at 23 A(ring), show that the Au coating is effective in improving the soft x-ray reflectance in the inner surface of fibers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140783
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  • 9
    Electronic Resource
    Electronic Resource
    Constant deviation monochromator for the range 100 A(ring)≤λ≤1000 A(ring) : INTERNATIONAL CONFERENCE ON SYNCHROTRON RADIATION INSTRUMENTATION (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 2105-2108 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A grazing incidence constant deviation monochromator with a spherical concave grating was fabricated for use with undulator radiation. It has a simple scanning mechanism with fixed entrance and exit slits, as well as fixed directions of incident and exit beams. It has been installed into an undulator beamline at IMS. Synchrotron radiation from a bending section also can be introduced into the monochromator by using premirrors. The energy resolution of the monochromator is better than 70 meV at the photon energy of 94 eV with 10-μm slits, when the bending magnet synchrotron radiation is used. The spot size of the zeroth-order light is 1.5(v)×2.0(h) mm2 at the distance of 1.85 m behind a postmirror. The photon flux of the undulator radiation behind the exit slit is approximately 1×1012 photons/s at the peak, when both the entrance and exit slits are 100 μm (ΔE=0.08 eV) and the stored current is 50 mA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140837
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  • 10
    Electronic Resource
    Electronic Resource
    2.2-m Rowland-circle grazing-incidence monochromator : INTERNATIONAL CONFERENCE ON SYNCHROTRON RADIATION INSTRUMENTATION (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 2081-2084 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A 2.2-m Rowland-circle grazing-incidence monochromator with a fixed entrance slit and a fixed grating, has been installed on the beamline BL8B1 at UVSOR, in which the axis of the monochromatized beam is unchanged for the wavelength scanning. Two gratings are interchangeable in vacuum. The designed useful region is 20–200 A(ring) with a 2400/mm grating, but the actual useful region was 50–200 A(ring). At 100 A(ring), 1010/s output photons were obtained with a resolution of 10−3. The horizontal width of the beam at the sample position was about 5 mm, while the vertical width was between 0.5 and 3 mm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140831
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