In this paper, we develop an accurate analytical closed-form model for the frequency resonance and scattering characteristics of single nanoshells. Nanoshells, dielectric spheres that are coated with noble metal, possess excellent tunability of their resonance frequency as a function of the relative sizes of the core and the thickness of the shell. Consequently, nanoshells offer much improved sensitivity, specificity, and cost-effectiveness in their applications. Simulation results show that our new closed-form model matches very closely with the exact solution for typical nanoshell configurations used in near-infrared applications.

In this paper, we present a new modeling technique for plasmon-based metallic nanoparticles under the influence of an electromagnetic field. The model approximates the coefficients of the admittance rational function. The proposed model utilizes spherical wave functions to describe the field and it provides an equivalent ladder-form RLC realization. Simulation results show that our model matches very closely with the exact solution. Our newly developed model can be used as a basic building block to develop an equivalent circuit model for metallic nanoparticle-based plasmonic waveguides

India, Pakistan, and Bangladesh (IPB) are the largest South Asian countries in terms of land area, gross domestic product (GDP), and population. The growth in these countries is impacted by inadequate renewable energy policy and implementation over the years, resulting in slow progress towards human development and economic sustainability. These developing countries are blessed with huge potential for renewable energy resources; however, they still heavily rely on fossil fuels (93%). IPB is a major contributor to the total energy consumption of the world and its most energy-intensive building sector (India 47%, Pakistan 55% and Bangladesh 55%) displays inadequate energy performance. This paper comprehensively reviews the energy mix and consumption in IPB with special emphasis on current policies and its impact on economic and human development. The main performance indicators have been critically analyzed for the period 1970–2017. The strength of this paper is a broad overview on energy and development of energy integration in major South Asian countries. Furthermore, it presents a broad deepening on the main sector of energy consumption, i.e., the building sector. The paper also particularly analyzes the existing buildings energy efficiency codes and policies, with specific long-term recommendations to improve average energy consumption per person. The study also examines the technical and regulatory barriers and recommends specific measures to adapt renewable technologies, with special attention to policies affecting energy consumption. The analysis and results are general and can be applied to other developing countries of the world.

Recently, there have been significant experimental advances in cancer treatment using metallic nanoshells, which are silica spheres coated with gold. Nanoshells posses an excellent tunability of their resonance frequency as a function of the relative sizes of the core and the thickness of the shell, consequently offering much improved sensitivity, specificity, and cost-effectiveness in cancer treatment. In this paper, we develop an accurate analytical closed-form model for the frequency resonance and scattering characteristics of single nanoshells. The closed-form model helps to intuitively explain the optical properties of the nanoshells. Simulation results show that the new model matches very closely with the exact solution for typical nanoshell configurations used in cancer treatment. The developed model ultimately allows for the real-time detection, monitoring and treatment of cancer using nanoshells.

As process technology continues to scale into the nanoscale regime, passive components and interconnect plays an ever increasing role in realization of mixed-signal systems. In this paper, the authors develop a new method for the model order reduction of passive components and interconnect using frequency selective projection methods with interpolation points based on the spectral-zeros of the RLC interconnect model's transfer function. The methodology uses imaginary part of the spectral zeros for frequency selective adaptive projection and provides stable as well as passive reduced order models. The results indicate that our method provides more accurate approximations than techniques based on balanced truncation and moment matching