Compact models for nanophotonic structures and on -chip interconnects

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dc.contributor.advisorMassoud, Yehiaen_US
dc.creatorAlam, Mehbooben_US
dc.date.accessioned2018-12-03T18:32:28Zen_US
dc.date.available2018-12-03T18:32:28Zen_US
dc.date.issued2007en_US
dc.description.abstractOver the last few years, scaling in deep submicron technologies has shifted the paradigm from device-dominated to interconnect-dominated design methodology. Consequently, there is an increasing interest towards the miniaturization of the guiding medium in nanoscale integrated circuits by exploring plasmon-based waveguides to alleviate the scaling issues associated with today's copper interconnect. In this thesis, we seek short and long-term solutions of on-chip interconnect by developing accurate compact models of on-chip interconnects and impedance characterization of nanophotonic structures. The developed system models are compact and accurate over the operating frequency range and the adopted approach have provided many critical insights and produced many important results. This thesis first presents a new modeling strategy that represents the nanostructure by its equivalent impedance. By applying either quasistatic approximation or separately solving for voltage and current for dominant mode, we reduce the field problem to a circuit problem. The impedance expressed in terms of circuit components is dependent on the material constant as well as the operating frequency. The modeling methodology is successfully applied to nanoparticles and oscillating nanosphere. The proposed model characterizes plasmon resonance in these nanostructures, thereby providing basic building block to develop spice models of complex plasmon-based waveguide for sub-wavelength propagation. We also presented several techniques to develop compact models of on-chip interconnects and passive components for accurate estimation of power, noise and delay of high speed integrated circuits. The automated method generates reduced order models that are accurate across either a narrow or a wide-range of frequencies. The proposed methods are based on Krylov subspace method with interpolation points dynamically selected using either spline based algorithm or discrete wavelet transform. Narrow and wideband frequency projection are also achieved using spectral zeros by applying either a frequency selective scheme or an adaptive wavelet transform to dynamically select spectral zeros. To demonstrate the efficacy of the approach, we simulated complex circuit models of spiral inductors, RLC networks and interconnect busses. The results indicate greater accuracy than techniques that apply other Krylov subspace methods or Singular Value Decomposition (SVD) based methods for model order reduction of on-chip interconnects.en_US
dc.format.extent131 ppen_US
dc.identifier.callnoTHESIS E.E. 2008 ALAMen_US
dc.identifier.citationAlam, Mehboob. "Compact models for nanophotonic structures and on -chip interconnects." (2007) Diss., Rice University. <a href="https://hdl.handle.net/1911/103672">https://hdl.handle.net/1911/103672</a>.en_US
dc.identifier.digital304818233en_US
dc.identifier.urihttps://hdl.handle.net/1911/103672en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectElectrical engineeringen_US
dc.subjectOpticsen_US
dc.subjectApplied sciencesen_US
dc.subjectPure sciencesen_US
dc.subjectKrylov subspacesen_US
dc.subjectModel order reductionen_US
dc.subjectNanophotonicsen_US
dc.subjectOn-chip interconnectsen_US
dc.titleCompact models for nanophotonic structures and on -chip interconnectsen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentElectrical Engineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US
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