Browsing Center for Organic Photonics and Electronics (COPE) by Title
Now showing items 21-40 of 397
-
An approximate effective index model for efficient analysis and control of beam propagation effects in photonic crystals
(Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers ; Optical Society of America, 2005-03)Propagation of optical beams through a photonic crystal (PC) is analyzed and modeled. It is shown that the propagation effects for beams with slow spatial variations can be effectively modeled by diffraction behavior ... -
Area selective atomic layer, deposition of titanium dioxide: Effect of precursor chemistry
(Georgia Institute of TechnologyAmerican Vacuum Society, 2006-11)Area selective atomic layer deposition (ALD) of titanium dioxide using polymer films as masking layers has been investigated. A number of factors which must be considered while designing a successful area selective ALD ... -
Area-scaling of organic solar cells
(Georgia Institute of TechnologyAmerican Institute of Physics, 2009-09)We report on the performance of organic solar cells based on pentacene/ C₆₀ heterojunctions as a function of active area. Devices with areas of 0.13 and 7 cm² were fabricated on indium-tin-oxide (ITO) coated glass. Degradation ... -
Area-selective ALD of titanium dioxide using lithographically defined poly (methyl methacrylate) films
(Georgia Institute of TechnologyElectrochemical Society, 2006)An approach to area-selective atomic layer deposition techniques based on the use of a lithographically definable polymeric masking layer has been reported. Successful direct patterned deposition of TiO2 is demonstrated ... -
Athermal operation in polymer-clad silicon microdisk resonators
(Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2009-10)We have used a urethane polymer as cladding to reduce the temperature sensitivity of resonance in high-Q silicon microdisk resonators. A two-order-of-magnitude improvement in resonance stability is demonstrated, and ... -
Attenuation in waveguides on FR-4 boards due to periodic substrate undulations
(Georgia Institute of TechnologyOptical Society of America, 2007-04)The guided-mode attenuation associated with optical-interconnect-polymer waveguides fabricated on FR-4 printed-circuit boards is quantified. The rigorous transmission-line network approach is used and the FR-4 substrate ... -
Azimuthal-order variations of surface-roughness-induced mode splitting and scattering loss in high-Q microdisk resonators
(Georgia Institute of TechnologyOptical Society of America, 2012-05)We report an experimental observation of strong variations of quality factor and mode splitting among whispering-gallery modes with the same radial order and different azimuthal orders in a scattering-limited microdisk ... -
Basis set consistent revision of the S22 test set of noncovalent interaction energies
(Georgia Institute of TechnologyAmerican Institute of Physics, 2010-03)The S22 test set of interaction energies for small model complexes [ Phys. Chem. Chem. Phys. 8, 1985 (2006) ] has been very valuable for benchmarking new and existing methods for noncovalent interactions. However, the basis ... -
Basis set convergence of the coupled-cluster correction, delta(CCSD(T))(MP2): Best practices for benchmarking non-covalent interactions and the attendant revision of the S22, NBC10, HBC6, and HSG databases
(Georgia Institute of TechnologyAmerican Institute of Physics, 2011-11)In benchmark-quality studies of non-covalent interactions, it is common to estimate interaction energies at the complete basis set (CBS) coupled-cluster through perturbative triples [CCSD(T)] level of theory by adding to ... -
Benchmark full configuration interaction and equation-of-motion coupled-cluster model with single and double substitutions for ionized systems results for prototypical charge transfer systems: Noncovalent ionized dimers
(Georgia Institute of TechnologyAmerican Institute of Physics, 2007-10)Benchmark full configuration interaction and equation-of-motion coupled-cluster model with single and double substitutions for ionized systems EOM-IP-CCSD results are presented for prototypical charge transfer species. ... -
Bio-inspired Materials: New Approaches to Molecular Building Blocks
(2018-01-09)Marine organisms use organic building blocks in unique ways to achieve materials with exceptional properties. With inspiration from these natural systems, the design of synthetic building blocks to mimic these capabilities ... -
Biomimetic and Bio-Enabled Materials Science and Engineering
(Georgia Institute of TechnologyMaterials Research Society, 2008-12) -
Board-level optical-to-electrical signal distribution at 10 Gb/s
(Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2006-09)An opto/electrical prototype for on-board optical-to-electrical signal broadcasting operating at 10 Gb/s per channel over an interconnect distance of 10 cm is demonstrated. An improved 1 4 multimode interference (MMI) ... -
Bond contribution model for the prediction of glass transition temperature in polyphenol molecular glass resists
(Georgia Institute of TechnologyAmerican Vacuum Society, 2009-11)Molecular glass resists have shown potential as replacements for polymeric resists in next generation lithography, especially extreme ultraviolet lithography. One of the main concerns about molecular resists is their glass ... -
Breakdown of the mirror image symmetry in the optical absorption/emission spectra of oligo(para-phenylene)s
(Georgia Institute of TechnologyAmerican Institute of Physics, 2005-01)The absorption and emission spectra of most luminescent, π-conjugated, organic molecules are the mirror image of each other. In some cases, however, this symmetry is severely broken. In the present work, the asymmetry ... -
Broadband Z-scan characterization using a high spectral irradiance high quality supercontinuum
(Georgia Institute of TechnologyOptical Society of America, 2008-02)We generate a high-spectral-irradiance, high-quality continuum by weakly focusing femtosecond pulses in Kr gas. We use this continuum as a source for rapid Z-scan measurements of the degenerate nonlinear absorption spectrum ... -
Cancellation of environmental effects in resonant mass sensors based on resonance mode and effective mass
(Georgia Institute of TechnologyAmerican Institute of Physics, 2009-06)novel technique is developed to cancel the effect of environmental parameters, e.g., temperature and humidity, in resonant mass sensing. Utilizing a single resonator, the environmental cancellation is achieved by monitoring ... -
Challenges of laser-cooling molecular ions
(Georgia Institute of TechnologyInstitute of Physics, 2011-06)The direct laser cooling of neutral diatomic molecules in molecular beams suggests that trapped molecular ions can also be laser cooled. The long storage time and spatial localization of trapped molecular ions provides ... -
Characteristics of laterally vibrating resonant microcantilevers in viscous liquid media
(Georgia Institute of TechnologyAmerican Institute of Physics, 2012-01)The characteristics of microcantilevers vibrating laterally in viscous liquid media are investigated and compared to those of similar microcantilevers vibrating in the out-of-plane direction. The hydrodynamic loading on ... -
Characterization of the loss of plasmonic modes in planar metal-insulator-metal waveguides by a coupling-simulation approach
(Georgia Institute of TechnologyOptical Society of America, 2010-02)Metal–insulator–metal (MIM) structures have been the subject of great interest as nanoscale plasmonic waveguides. The modeling and measurement of the loss in these waveguides is one of the critical issues in realizing the ...