Now showing items 253-272 of 376

    • Pattern-integrated interference lithography instrumentation 

      Burrow, Guy M.; Leibovici, Matthieu C. R.; Kummer, J. W.; Gaylord, Thomas K. (Georgia Institute of TechnologyAmerican Institute of Physics, 2012-06)
      Multi-beam interference (MBI) provides the ability to form a wide range of sub-micron periodic optical-intensity distributions with applications to a variety of areas, including photonic crystals (PCs), nanoelectronics, ...
    • Pattern-integrated interference lithography: single-exposure fabrication of photonic-crystal structures 

      Burrow, Guy M.; Leibovici, Matthieu C. R.; Gaylord, Thomas K. (Georgia Institute of TechnologyOptical Society of America, 2012-06)
      Multibeam interference represents an approach for producing one-, two-, and three-dimensional periodic optical-intensity distributions with submicrometer features and periodicities. Accordingly, interference lithography ...
    • Patterning via surface monolayer initiated polymerization: A study of surface initiator photoreaction kinetics 

      McCoy, Kendra; Hess, Dennis W.; Henderson, Clifford L. (Georgia Institute of TechnologyAmerican Vacuum Society, 2004-11)
      Surface monolayer initiated polymerization (SMIP) is a potential method for achieving high resolution patterning of surfaces and materials that could be used as an alternative to conventional lithographic methods based on ...
    • A PDA-based wireless biosensor using industry standard components 

      Sommers, Daniel R.; Stubbs, Desmond D.; Hunt, William D. (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2004-10)
      This paper presents the conception, design, implementation, and validation of an original, fully functional biosensor based on surface plasmon tesonance (SPR) technology.We present the motivation for building this sensor ...
    • Phosphor microparticles of controlled three-dimensional shape from phytoplankton 

      Weatherspoon, Michael R.; Haluska, M. S.; Cai, Ye; King, J. S.; Summers, C. J.; Snyder, R. L.; Sandhage, Kenneth H. (Georgia Institute of TechnologyElectrochemical Society, 2006)
    • Photodegradation of selected pi-conjugated electro-optic chromophores 

      Galvan-Gonzalez, A.; Belfield, Kevin D.; Stegeman, G. I.; Canva, M.; Marder, Seth R.; Staub, K.; Levina, G.; Twieg, R. J. (Georgia Institute of TechnologyAmerican Institute of Physics, 2003-07)
      The photodegradation properties of six electro-optic chromophores in guest-host polymer formats were measured as a function of wavelength throughout the visible and up to 1.3 μm in the near infrared. The chromophore structure ...
    • Photoelectron spectroscopy studies of plasma-fluorinated epitaxial graphene 

      Sherpa, Sonam D.; Paniagua, Sergio A.; Levitin, Galit; Marder, Seth R.; Williams, M. D.; Hess, Dennis W. (Georgia Institute of TechnologyAmerican Vacuum Society, 2012-05)
      Fluorination of graphene has emerged as an attractive approach toward manipulating its physical, chemical, and electronic properties. To this end, we have demonstrated the viability of sulfur hexafluoride plasmas to ...
    • Photopolymer-based diffractive and MMI waveguide couplers 

      Mule’, Anthony V.; Villalaz, Ricardo; Gaylord, Thomas K.; Meindl, James D. (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2004-11)
    • Photorefractive polymer composite operating at the optical communication wavelength of 1550 nm 

      Tay, Savaş; Thomas, Jayan; Eralp, Muhsin; Li, Guoqiang; Kippelen, Bernard; Marder, Seth R.; Meredith, Gerald; Schülzgen, Axel; Peyghambarian, Nasser (Georgia Institute of TechnologyAmerican Institute of Physics, 2004-11)
      A photorefractive polymer composite sensitized at 1550 nm through direct two-photon absorption has been developed. We show an external diffraction efficiency of 3% in four-wave-mixing experiments and perform holographic ...
    • Planar lightwave integrated circuits with embedded actives for board and substrate level optical signal distribution 

      Jokerst, Nan M.; Gaylord, Thomas K.; Glytsis, E.; Brooke, Martin A.; Cho, S.; Nonaka, T.; Suzuki, T.; Geddis, Demetris L.; Shin, Jaemin; Villalaz, R.; Hall, J.; Chellapa, Ananthasayanam; Vrazel, M. (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2004-05)
      As the data rate of integrated circuits dramatically increases, interconnection speed at the backplane and board levels are beginning to limit system performance, which drives investigations into alternative interconnection ...
    • Planar photonic crystal microspectrometers in silicon-nitride for the visible range 

      Momeni, Babak; Hosseini, Ehsan Shah; Adibi, Ali (Georgia Institute of TechnologyOptical Society of America, 2009-09)
      We demonstrate the feasibility of forming a compact integrated photonic spectrometer for operation in the visible wavelength range using the dispersive properties of a planar photonic crystal structure fabricated in silicon ...
    • Planar photonic crystals infiltrated with nanoparticle/polymer composites 

      Tay, Savaş; Thomas, Jayan; Momeni, Babak; Askari, Murtaza; Adibi, Ali; Hotchkiss, Peter J.; Jones, Simon C.; Marder, Seth R.; Norwood, Robert A.; Peyghambarian, Nasser (Georgia Institute of TechnologyAmerican Institute of Physics, 2007-11)
      Infiltration of planar two-dimensional silicon photonic crystals with nanocomposites using a simple yet effective melt processing technique is presented. The nanocomposites that were developed by evenly dispersing ...
    • Plastic deformation of pentagonal silver nanowires: Comparison between AFM nanoindentation and atomistic simulations 

      Lucas, Marcel; Leach, Austin M.; McDowell, Matthew T.; Hunyadi, Simona E.; Gall, Ken; Murphy, Catherine J.; Riedo, Elisa (Georgia Institute of TechnologyAmerican Physical Society, 2008-06)
      The plastic deformation of a pentagonal silver nanowire is studied by nanoindentation using an atomic force microscope (AFM). AFM images of the residual indent reveal the formation of a neck and surface atomic steps. To ...
    • Polarization-dependent loss and birefringence in long-period fiber gratings 

      Bachim, Brent L.; Gaylord, Thomas K. (Georgia Institute of TechnologyOptical Society of America, 2003-12)
      Widely used descriptions and relationships for birefringence and polarization-dependent loss (PDL), developed primarily for ultraviolet-induced long-period fiber gratings (LPFGs) written in optical fiber, can be invalid ...
    • Polylithic integration of electrical and optical interconnect technologies for gigascale fiber-to-the-chip communication 

      Mule’, Anthony V.; Villalaz, Ricardo A.; Joseph, Paul Jayachandran; Naeemi, Azad; Kohl, Paul A.; Gaylord, Thomas K.; Meindl, James D. (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2005-08)
      Polylithic integration of electrical and optical interconnect technologies is presented as a solution for merging silicon CMOS and compound semiconductor optoelectronics. In contrast to monolithic and hybrid integration ...
    • Precision measurements for propagation properties of high-definition polymer waveguides by imaging of scattered light 

      Wang, Fengtao; Liu, Fuhan; Chang, Gee-Kung; Adibi, Ali (Georgia Institute of TechnologySociety of Photo-optical Instrumentation Engineers (SPIE), 2008-02)
      We present a reliable, nondestructive, and real-time technique for characterization of propagation properties of planar optical waveguides based on accurately imaging the scattered light from the optical waveguide using a ...
    • Preconditioned superprism-based photonic crystal demultiplexers: analysis and design 

      Momeni, Babak; Adibi, Ali (Georgia Institute of TechnologyOptical Society of America, 2006-11)
      We present the analysis and design of a new type of photonic crystal (PC) demultiplexers (i.e., preconditioned demultiplexer), in which the simultaneous existence of the superprism effect and the negative effective index ...
    • Prototype CO₂ laser-induced long-period fiber grating variable optical attenuators and optical tunable filters 

      Braiwish, Mohammad I.; Bachim, Brent L.; Gaylord, Thomas K. (Georgia Institute of TechnologyOptical Society of America, 2004-03)
      Prototype devices capable of variable attenuation at a fixed wavelength, wavelength tuning at a constant attenuation, and combinations of these spectral characteristics are demonstrated in CO₂ laser-induced long-period ...
    • Proximity Lithography in Sub-10 Micron Circuitry for Packaging Substrate 

      Wang, Fengtao; Liu, Fuhan; Kong, Linghua; Sundaram, Venky; Tummala, Rao R.; Adibi, Ali (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2010-11)
      Rapid changes in the semiconductor industry will continue toward higher functionality that leads to higher input/outputs (I/O) counts, pushing packaging towards higher density architectures. In the next two to three ...
    • Pulse response of multimode interference devices 

      Chang, Yin-Jung; Gaylord, Thomas K.; Chang, Gee-Kung (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers ; Optical Society of America, 2006-03)
      Multimode interference (MMI) devices operating at high data rates are important in optical interconnects and optical networks. Their 1× N splitting provides a fundamental functionality in these and other applications. To ...