Poster61 Videos

NM08 – Silicon-Based Plasmonic Nanoantennas at midinfrared for Gas Sensing Applications

Alsayed A. E., Ghanim A. M., Yahia A., Swillam M. A.

Advanced nanotechnology especially CMOS technology- enables us to re-design the classic antenna in the nanoscale, which can convert propagating optical wavelengths instead of radio and microwave wavelengths into localized energy and vice versa. As a result, sensors may be designed to make sensing molecules with their characteristic vibrational transitions easier. Bowtie silicon nanoantennas are investigated […]

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NM09 – Calculation of intersubband absorption in n-doped BaSnO3 quantum wells

Stanojević N., Radovanović J., Vuković N.

In this work we explore novel and promising BaO/BaSnO3 perovskite-oxide quantum well material system which has recently attracted attention due to its many advantages and possible applications in electronic devices. We focus on calculation of intersubband absorption in La-doped BaSnO3 quantum wells and investigate the tuning of absorption spectra with QW thickness and external electric […]

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NM10 – One channel tunable bandpass superconducting filter for wavelength selective switching applications in communications systems

Gonzalez Reyes L. E., Segura-Gutierrez L. M., Ordonez J. E., Zambrano G., Reina J. H.

We design and evaluate the performance of optical filters that are built from one-dimensional photonic crystals (PhCs) amenable for integration into optical networks based on wavelength division multiplexing (WDM). The photonic heterostructures comprise the integration of a ferroelectric (BaTiO3), a dielectric (Y2O3), and a critical high-temperature superconductor material (YBa2Cu3O7−X) in between. Such nanosystems can allow […]

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NM11 – Highly Efficient and Novel Lumped Michelson Modulator using Vertical PN junction based Phase Shifter

Hamdani M. A., Qazi G., Naik S. K., Sugesh R. G. J., Magray M. A.

Vertical PN depletion phase shifter based novel Common Mirror Michelson Modulator is proposed. It has a lower V, higher ER for a particular value of source impedance at a given bitrate and doping than conventional PN phase shifter based modulator.

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NM12 – Design of Slot Waveguide based Directional Coupler for Optical Sensing of low concentration of Ethanol in Water

Malviya N., Ranjan R., Pareek P.

In this study, sensing of low concentration (0-10%) of ethanol in water is presented by refractive index sensing by silicon slot waveguide-based direction coupler. The significance spectral variation and sensitivity is observed to detect low concentration of ethanol in water.

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NM13-Highly sensitive ring resonator based refractive index sensor for label free biosensing applications

Kundal S., Khandelwal A.

Ring resonator based label free refractive index biosensor is proposed for detecting glucose and hemoglobin concentrations. To improve device sensitivity and Q factor, various parameters of ring resonator are optimized. The designed ring resonator sensor can sense hemoglobin and glucose concentrations with a high sensitivity of 424 nm/RIU and Q factor of 802.

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NM14-Mid-infrared optical modulator based on D-shaped PCF

Younis B. M., Yazeed N., Usama E., El-Sayed B., Almoqadem M. H., El-Sonbaty M. A., El-Shawadfy A., Abd-Elaziz A., Mahmoud S., Hameed M. F. O.,

Recently, photonic crystal fibers (PCFs) have become of compelling interest due to their diverse applications, especially in the mid-infrared (mid-IR) wavelength regime. In this work, an optical mid-IR modulator based on D-shaped PCF with germanium-antimony-tellurium (GST) as a phase-changing material (PCM) is presented and analyzed. Because of the phase transition of the GST material between […]

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NM15-Performance Optimization of Surface Plasmon Resonance based Sensors from the First Principle

Kushwah H., Anand J. K.

Performance optimization of surface plasmon resonance (SPR) based sensors due to improvement in input optical coupling is theoretically investigated from the first principle. Various design parameters are optimized in a typical prism coupling Kretschmann configuration.

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P06 – Flexible, Process-Aware Compact Model of Effective Index in Silicon Waveguides for Commercial Foundries

James A., Wang Y., Rizzo A., Bergman K.

We report the performance of a compact model for the effective index of SOI wire waveguides, showing exceptional agreement with simulated effective index and confinement factors. The development of such a model represents a potential pathway toward better modeling of silicon photonic devices in commercial foundry processes.

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P07 – Low-Cross-Talk Metal-Dielectric-Metal Waveguide Intersections Based on Sodium

Rodriguez-Esquerre V. F., Muzis Sobrinho C. G., Matos Barreto P. P., Malheiros-Silveira G. N.

We analyzed the transmission properties of two plasmonic waveguides crossing by using numerical simulations. The subwavelength width waveguides are composed of sodiumair-sodium. The crossing structure is composed by a compact cross-shaped resonant cavity with a four-fold symmetry. The results demonstrated the feasibility of using sodium as a low loss material for several applications for nanoplasmonic […]

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P08 – Tunable Guided-mode resonance filter using Spacetime Periodic Structure

Khorrami Y., Fathi D., Razmjooei N., Rumpf R. C.

We present a tunable planar guided-mode resonance (GMR) filter using time-varying permittivity along grating nanobars. Results show that the effective medium concept in the temporal state is exactly the same as the spatial state. Furthermore, the structure has spatial periodicity to save the resonance peak of the passive GMR in addition to the temporal periodicity […]

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P09 – 120° Hybrid for Bimodal Interferometers

An 120° hybrid for bimodal interferometers in the 220 nm silicon-on-insulator technology is presented. Three output signals enable an unambiguous phase detection over a 360°-range as well as a constant sensitivity. The length of the hybrid is only 190 µm with a simulated excess loss of 0.16 dB. Measurements combined with digital signal processing verify […]

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P10 – Ultraviolet and Infrared Blocking Meta-glasses for Electric Vehicles

Chowdhary A.K., Bhowmik T., Gupta J., Sikdar D.

The air-conditioning systems installed in electric vehicles (EVs) consume a significant portion of battery power, thus, limiting EVs’ operating mileage. A design of an automobile windshield that can passively control the heat and light transmitted through it, could improve EV’s performance by reducing the need for air-conditioning. Here, we present a ‘meta-glass’ coating design that […]

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P11 – Numerical Study of Stimulated Brillouin Scattering in Optical Microcavities Made of Telecommunication Fibres

Kosareva A., Alyukova V., Salnikov N., Kalinin N.

We numerically studied stimulated Brillouin scattering processes up to the 5th order is microcavities with various realistic diameters and Q-factors made of standard telecommunication fibres. Pump power thresholds were simulated for different parameters of the system. The  larger the microcavity and lower Q-factors, the higher pump power thresholds are. It is also shown that thresholds […]

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P12 – Design and Simulation of Temperature Sensors Based on Thermo-Optical WGM Shifts in Silica and Non-Silica Glass Microcavities

Marisova M. P., Andrianov A. V., Anashkina E. A.

Sensing applications of dielectric microcavities with whispering-gallery modes (WGMs) have been actively studied in the recent years. Here we investigated theoretically temperature microsensors based on different glasses, including common silica glass, as well as special germanate, tungsten-tellurite, arsenic sulfide and arsenic selenide glasses. We developed numerical model describing sensing characteristics of the considered microcavities. We […]

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P13 – Genetic algorithm optimization of infrared plasmonic absorbers

Souza Bezerra D., Rodriguez-Esquerre V. F.

The absorption of a multiband absorber based on a periodical plasmonic grating has been optimized. The optical and geometrical parameters of the plasmonic structure which is composed of germanium and gold are determined by an efficient genetic algorithm. The electromagnetic response of the absorber is numerically obtained by using the frequency domain finite element method. […]

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P14 – Dynamically tunable Graded Index Photonic Crystal lens based on Dirac semimetal

Panahianfar P., Rezaei B.

In this paper, we design a graded-index photonic crystal based on Dirac semimetals and simulate the light propagation in the proposed structure using two-dimensional finite-difference time-domain method. The numerical results indicate that the designed GRIN PC has focusing capability for incident light at terahertz frequency range, and its focal distance can be tuned through changing […]

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P15 – Numerical simulation of silicon grating-based plasmonic sensor

Kumar Pandey A., Kumar H.

This work reports on the application of silicon grating-enabled nanostructure for refractive index sensing application in the near-infrared region. This grating helps in launching the plasmon modes efficiently towards the flat metal film deposited with a thin Al2O3 layer. The normal incidence light is used which can be helpful for its integration with optical fiber. […]

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P16 – Plasmonic Dual D-shaped PCF Sensor for Low Refractive Index Applications

Gamal Y., Younis B. M., Hameed M. F. O., Obayya S. S. A.

Dual D-shaped (DD-shaped) plasmonic photonic crystal fiber (PCF) for refractive index sensing is designed and analyzed. In the proposed design, two gold nano-rods are attached to the two etched surfaces of the PCF to enhance the sensing characteristics. The surface plasmon (SP) modes excited at the metal/dielectric interfaces are strongly coupled to the PCF core […]

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P17 – Simulation Analysis of Microring Resonator in Mobius Topology

Katti R., Prince S.

In this paper, a microring resonator in Mobius topology is modelled and simulation analysis is carried out. The free spectral range of this silicon-on-insulator based photonic device is found to be 23.4 nm. This structure of microring resonator finds place in various applications such as sensors, polarization analysis, wavelength-selective reflectors.

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P18 – The counter-propagating traveling-wave technique for optimizing a continuous-wave fiber laser presenting excited state absorption

Barmenkov Y. O., Aboites V., Minguela-Gallardo J. A.

We report results of simulation of a continuous-wave fiber laser with active medium presenting an excited state absorption. The laser was simulated using the counterpropagating traveling-wave technique with taking into account two laser waves propagating along the laser cavity in opposite directions, two waves of amplified spontaneous emission, and exited state absorption observed for both […]

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P19 – Numerical Assessment of Bloch Surface Wave 1D-PhC Sensor using Ba2NaNb5O15 Defect Layer

Sagar K., Kumar A.

In this paper, a top defective layer of Barium sodium niobate (Ba2NaNb5O15) material of nanometer range thickness is used to confine Bloch surface mode at the upper interface of the proposed structure. For a 1275 nm operating wavelength, the structural characteristics are intended to stimulate a BSW at the top interface. Wavelength interrogation, angle interrogation, […]

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P20 – Simulation of Optical Planar Waveguide Sensor for Microplastics Detection in Water

Razali N. M., Saris N. N. H.

Nowadays, microplastics pollution has become a global concern as it endangers the ecology, marine animals, and cause health threats to human beings. This paper attempted to simulate an optical planar waveguide sensor for microplastics detection in water via Wave Optics Module-COMSOL Multiphysics®. The analyte refractive index was ranged from 1.4800 to 1.5000 RIU, in reference […]

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P21 – Numerical investigation of optical bistability in inhomogeneous PT -symmetric gratings

Sudhakar S., Vignesh Raja S., Govindarajan S.

Customizing the nonlinear profile along the direction of propagation helps in the realization of low-power all-optical switches. The switching intensities are extremely low (<0.01) in the broken regime provided that the light launching direction is right. It is believed that the switching intensities in the broken regime are always higher than that of the unbroken […]

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P22 – Dynamics of colliding Bragg solitons in a dual-core system with separated grating and cubic-quintic nonlinearity

Anam N., Atai J.

We investigate the collisions of counterpropagating Bragg solitons in a dual-core optical coupler where one core has cubic-quintic nonlinearity and is coupled to another linear core equipped with a uniform Bragg grating. The outcomes of the collisions are diverse and exhibit rich dynamics.

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P23 – Nanoplasmonic Ultra Compact, Low Insertion Loss UWB Band-Pass Filter Using Square Ring Resonators

Thirupathaiah K., Rao L. K., Boda R.

This article presents the design and analysis of a nanoplasmonic ultra wide band (UWB) band-pass filter based on metal insulator metal (MIM) slot-waveguide using three square ring resonators (SRRs) for obtaining ultra wide band nature at optical frequencies. This filter shows the low insertion loss due to the zero coupling gaps and no mismatch between […]

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SC02 – Numerical simulation of eco-friendly 4-terminal all perovskite tandem solar cell using novel HTL structure in the bottom sub cell

Moradbeigi M., Razaghi M.

In this paper, we proposed a free-pb 4-terminal (4T) all perovskite tandem solar cell (APTSC) as reference with the power conversion efficiency (PCE) of 26.42% . First, a 100 nm MgF2 thin film is used as an antireflection layer (ARL) of the top sub cell to improve the total PCE of the reference structure. The […]

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SC03 – Simulation and Optimization of Nano-structured Gratings Alternative of Thin-film Anti-Reflectors for GaAs Solar Cells Conversion Efficiency Improvement

Das N., Sharma A., Khairul Basar M., Nur-E-Alam M.

Modern civilization demands energy, and the energy demand is increasing almost every day all over the world. The dependency on conventional energy resources including fossil fuel, oil, gas, coal etc. are not in favor of having sustainable global earth. For this reason, renewable or clean energy is one only option while acquiring energy from the […]

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SC04 – Performance Evaluation of Lead-Free Cs2CuSbCl6 Perovskite Solar Cells for > 21.67% Efficiency

Kumar A., Thomas M. S., Gupta N., Jain A.

This work investigates the performance of Cs2CuSbCl6-based lead-free perovskite solar cells for photovoltaic applications. Cs2CuSbCl6 has a bandgap of 1.7eV and it is a durable and non-toxic material. Cs2CuSbCl6 can absorb more photons and thus obtain high efficiency. This work has been performed using SCAPS-1D software with the focus on optimizing the absorber layer thickness […]

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SC05 – Highly Efficient Dome Shaped Nanowires Solar Cell

El-Bashar R., Hameed M. F. O., Obayya S. S. A.

The optical characteristics of Si dome-tapered nanowires (NWs) solar cell (SC) are reported and analyzed by using finite difference time domain method. The geometrical parameters are studied to maximize the light absorption and hence the ultimate efficiency and short circuit current density of the reported NWs SC. The dome-shaped NWs show better absorption enhancement than […]

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