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  • American Institute of Physics (AIP)  (8)
  • 1
    Electronic Resource
    Electronic Resource
    Linear electro-optic effect in sputtered polycrystalline LiNbO3 films (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 54 (1989), S. 1385-1387 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Light guiding and modulation was demonstrated in sputtered LiNbO3 films deposited on glass substrates. We report on films' exceptionally low attenuation (〈2 dB/cm) and the highest electro-optical coefficient reported so far for this kind of film (1.34×10−12 m/V).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.101406
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  • 2
    Electronic Resource
    Electronic Resource
    Free-electron laser diagnosis by polarization analysis of Thomson backscattered light (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 1923-1926 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The polarization properties of backscattered radiation from a relativistic electron beam are analyzed. It is shown that the polarization state of the backscattered radiation is changed with respect to that of the incoming radiation whenever a transverse component is present in the velocity distribution of the electron beam. Changes of polarization properties are evaluated in order to serve as a diagnostic tool for electron-beam parameters relevant to the performance of free-electron lasers, namely the beam emittance and the wiggler parameter. A measurable dimensionless "depolarization parameter'' is introduced which directly measures these two parameters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.348763
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  • 3
    Electronic Resource
    Electronic Resource
    Laser-induced electron source in a vacuum diode (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 66 (1989), S. 4425-4430 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Experiments were conducted in which a high-power CO2 TEA laser interacted with metallic cathode in a high-vacuum (10−8 Torr) diode. For power densities lower than 5×107 W/cm2, no current was detected. For power densities in the range of 5×107–5×108 W/cm2, the Cu cathode emitted a maximum current of 40 mA. At a higher power density level, a circuit-limited current of 8 A was detected. The jump of a few orders of magnitude in the current is attributed to breakdown of the diode gap. The experimental results are similar to those of a triggered vacuum gap, and a thorough comparison is presented in this paper. The influence of the pressure in the vacuum chamber on the current magnitude shows the active role that adsorbed gas molecules have in the initial breakdown. When the cathode material was changed from metal to metal oxide, much lower laser power densities were required to reach the breakdown current region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.343937
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  • 4
    Electronic Resource
    Electronic Resource
    Two-line operation of a CO2 transversely excited atmospheric-pressure laser by means of a bifurcating cavity (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 2654-2655 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: By means of an intracavity grating that splits the paths of two different transition lines, a CO2 transversely excited atmospheric-pressure laser was operated at two wavelengths. The scheme provides control of the wavelengths and pulse delays. The two lines belonged to different vibrational bands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.335406
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  • 5
    Electronic Resource
    Electronic Resource
    Modification of refractive index in Ag/Na ion-exchanged glasses by vacuum-ultraviolet pulse laser irradiation (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 78 (2001), S. 1844-1846 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Laser-induced refractive index modification in Ag+ ion exchanged waveguides on glass substrates was observed. Waveguiding effects were measured, and an increase in refractive index of more than 2×10−3 was deduced. Refractive index profiles show that the maximum radiation-induced difference is attained 4–5 μm below the surface. Possible mechanisms for the material modification are discussed. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1357216
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  • 6
    Electronic Resource
    Electronic Resource
    Light amplification in a dye-doped glass planar waveguide (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 66 (1995), S. 1169-1171 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Glass waveguiding films were prepared from titania and modified silica using the sol-gel method and doped by the laser dye rhodamine B. The guided and amplified fluorescence (pumped by a double frequency Nd-YAG laser) was coupled out either by static grating written on the film or by a prism. The gain of the emitted superradiance was determined from the amplified spontaneous emission intensity dependence on the pumped strip length. A maximum net gain of 54 dB/cm was measured. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.113846
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  • 7
    Electronic Resource
    Electronic Resource
    Sol-gel glass waveguides prepared at low temperature (1993)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 63 (1993), S. 3256-3258 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Planar waveguides of TiO2-organically modified silanes deposited on glass substrates were prepared by the sol-gel method, either in a pure form or doped by red perylimide laser dye, and their optical properties characterized. The refractive index increases and film thickness decreases as TiO2 contents rise. Waveguiding in the pure film and the trapped luminescence in the doped films were measured. Typically three guided modes were observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.110166
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  • 8
    Electronic Resource
    Electronic Resource
    Asymmetric Y-junction wavelength demultiplexer based on segmented waveguides (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 302-304 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An asymmetric Y-junction wavelength demultiplexer, with a segmented branch, was realized in Ti:LiNbO3. The device was fabricated in a single-step lithographical process. Wavelength demultiplexing operation in the range 633 nm〈λ〈834 nm is demonstrated, with extinction ratios up to 30 dB. Insertion loss vary between a negligible value (far away from cutoff) up to 7 dB (near cutoff). Possible applications of the device are considered. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.115425
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