Engineering Commons^™

Transparent Solar Windows From Labs To Industry, Towards Smart Cities - Encyclopedia- Oct 2019.Pdf, Mohammad Nur-E-Alam, Mikhail Vasiliev, Kamal Alameh

Mikhail Vasiliev

Initial Field Testing Results From Building-Integrated Solar Energy Harvesting Windows Installation In Perth, Australia, Mikhail Vasiliev, Mohammad Nur-E-Alam, Kamal Alameh

Mikhail Vasiliev

Application-Specific Oxide-Based And Metal-Dielectric Thin Film Materials Prepared By Rf Magnetron Sputtering Preprints201908.0184.V1.Pdf, Mohammad Nur-E-Alam, Wade Lonsdale, Mikhail Vasiliev, Kamal Alameh

Mikhail Vasiliev

Initial Field Testing Results From Building-Integrated Solar Energy Harvesting Windows Installation In Perth, Australia (Preprint), Mikhail Vasiliev, Mohammad Nur-E-Alam, Kamal Alameh

Mikhail Vasiliev

Analysis, Optimization, And Characterization Of Magnetic Photonic Crystal Structures And Thin-Film Material Layers, Mikhail Vasiliev, Kamal Alameh, Mohammad Nur-E-Alam

Mikhail Vasiliev

Recent Developments In Solar Energy-Harvesting Technologies For Building Integration And Distributed Energy Generation, Mikhail Vasiliev, Mohammad Nur-E-Alam, Kamal Alameh

Mikhail Vasiliev

Recent Developments In Solar Energy-Harvesting Technologies For Building Integration And Distributed Energy Generation, Mikhail Vasiliev, Mohammad Nur-E-Alam, Kamal Alameh

Mikhail Vasiliev

Semi-Transparent Energy-Harvesting Solar Concentrator Windows Employing Infrared Transmission-Enhanced Glass And Large-Area Microstructured Diffractive Elements, Mikhail Vasiliev, Kamal Alameh, Mohsin Ali Badshah, Seok-Min Kim, Mohammad Nur-E-Alam

Mikhail Vasiliev

Properties Of Ferrite Garnet (Bi, Lu, Y)3(Fe, Ga)5o12 Thin Film Materials Prepared By Rf Magnetron Sputtering, Mohammad Nur-E-Alam, Mikhail Vasiliev, Vladimir I. Belotelov, Kamal Alameh

Mikhail Vasiliev

No abstract provided.

Spectrally-Selective All-Inorganic Scattering Luminophores For Solar Energy-Harvesting Clear Glass Windows, Ramzy Alghamedi, Mikhail Vasiliev, Mohammad Alam, Kamal Alameh

Mikhail Vasiliev

All-inorganic visibly-transparent energy-harvesting clear laminated glass windows are the most practical solution to boosting building-integrated photovoltaics (BIPV) energy outputs significantly while reducing cooling- and heating-related energy consumption in buildings. By incorporating luminophore materials into lamination interlayers and using spectrally-selective thin-film coatings in conjunction with CuInSe2 solar cells, most of the visible solar radiation can be transmitted through the glass window with minimum attenuation while ultraviolet (UV) radiation is down-converted and routed together with a significant part of infrared radiation to the edges for collection by solar cells. Experimental results demonstrate a 10 cm × 10 cm vertically-placed energy-harvesting clear glass …

Magnetophotonic Intensity Effects In Hybrid Metal-Dielectric Structures, V I. Belotelov, L E. Kreilkamp, A N. Kalish, I A. Akimov, D A. Bykov, S Kasture, V J. Yallapragada, A V. Gopal, A M. Grishin, S I. Khartsev, Mohammad Nurealam, Mikhail Vasiliev, L L. Doskolovich, D R. Yakovlev, Kamal Alameh, A K. Zvezdin, M Bayer

Mikhail Vasiliev

The magneto-optical properties of a hybrid metal-dielectric structure consisting of a one-dimensional gold grating on top of a magnetic waveguide layer are studied experimentally and theoretically. It is demonstrated that a magnetic field applied in the longitudinal configuration (in the plane of the magnetic film and perpendicular to the slits in the gold grating) to the metal-dielectric structure modifies the field distribution of the optical modes and thus changes the mode excitation conditions. In the optical far field, this manifests in the alteration of the optical transmittance or reflectance when the structure becomes magnetized. This magneto-optical effect is shown to …

Recent Developments In Magneto-Optic Garnet-Type Thin-Film Materials Synthesis, Mohammad Nur-E-Alam, Mikhail Vasiliev, Viacheslav Kotov, Kamal Alameh

Mikhail Vasiliev

Magneto-optic (MO) garnets are used in a range of applications in nanophotonics, integrated optics, communications and imaging. Bi-substituted iron garnets of different compositions are the most useful class of materials in applied magnetooptics due to their excellent MO properties (large Faraday effect) and record-high MO figure of merit among all semitransparent dielectrics. It is highly desirable to synthesise garnets which possess simultaneously a high MO figure of merit and large uniaxial magnetic anisotropy. However, the simultaneous optimization of several material properties and parameters can be difficult in single-layer garnet thin films, and it is also challenging to prepare films with …

Recent Developments In Magneto-Optic Garnet-Type Thin-Film Materials Synthesis, Mohammad Nur E Alam, Mikhail Vasiliev, Viacheslav Kotov, Kamal Alameh

Mikhail Vasiliev

Magneto-optic (MO) garnets are used in a range of applications in nanophotonics, integrated optics, communications and imaging. Bi-substituted iron garnets of different compositions are the most useful class of materials in applied magneto- optics due to their excellent MO properties (large Faraday effect) and record-high MO figure of merit among all semi- transparent dielectrics. It is highly desirable to synthesise garnets which possess simultaneously a high MO figure of merit and large uniaxial magnetic anisotropy. However, the simultaneous optimization of several material properties and parameters can be difficult in single-layer garnet thin films, and it is also challenging to prepare …

Groove Shape-Dependent Absorption Enhancement Of 850 Nm Msm Photodetectors With Nano-Gratings., Narottam Das, Ayman Karar, Mikhail Vasiliev, Chee Leong Tan, Kamal Alameh, Yong Tak Lee

Mikhail Vasiliev

Finite difference time-domain (FDTD) analysis is used to investigate the light absorption enhancement factor dependence on the groove shape of the nano-gratings etched into the surfaces of metal-semiconductor-metal photodetector (MSM-PD) structures. By patterning the MSM-PDs with optimized nano-gratings a significant improvement in light absorption near the design wavelength is achieved through plasmon-assisted electric field concentration effects. Simulation results show about 50 times light absorption enhancement for 850 nm light due to improved optical signal propagation through the nano-gratings.

New Class Of Garnet Nanocomposites For Use In Magnetic Photonic Crystals Prepared By Rf Magnetron Co-Sputtering, Mohammad Nur-E-Alam, Mikhail Vasiliev, Kamal Alameh

Mikhail Vasiliev

No abstract provided.

Thin Film Coatings For Solar And Thermal Radiation Control Prepared By Physical Vapour Deposition, Yamna El Mouedden, Ramzy Alghamedi, Mohammad Nur-E-Alam, Mikhail Vasiliev, Kamal Alameh

Mikhail Vasiliev

No abstract provided.

Doped Iron Garnet Materials For Magnetic Photonic Crystals, Mikhail Vasiliev, Kamal Alameh, Viatcheslav Kotov

Mikhail Vasiliev

We have established a set of technologies for the deposition and annealing of magneto-optic garnets for use in photonic crystals. Devices for sensing magnetic fields and polarisation control using reconfigurable photonic crystals are being developed.

Garnet Nanocomposite For Use In Magnetic Photonic Crystals Prepared By Composition Adjustment In The Bi₃Fe₃O₁₂–Bi₂Dy₁Fe₄Ga₁ O₁₂ Material System, Mohammad Nur E Alam, Mikhail Vasiliev, Viatcheslav Kotov, Kamal Alameh

Mikhail Vasiliev

RF co-sputtered nanocomposite (Bi3Fe5O12-Bi2Dy1Fe4Ga1O12) thin films are prepared using composition adjustment approach, implemented by varying the RF powers at each sputtering target. A new MO nanocomposite material is obtained by means of applying optimized annealing crystallization process to these as-deposited garnet layers. The optimally annealed garnet nanocomposites exhibit a significant red shift of the main MO transitions and show strong Faraday rotation of about 8.8°/μm at 532 nm simultaneously with having a high MO quality and magnetization direction perpendicular to the film plane.

New Class Of Garnet Nanocomposites For Use In Magnetic Photonic Crystals Prepared By Rf Magnetron Co-Sputtering, Mohammad Nur E Alam, Mikhail Vasiliev, Kamal Alameh

Mikhail Vasiliev

A new class of magneto-optic garnet nanocomposite materials is prepared using two Bi-substituted iron garnet materials of composition types (Bi,Dy) 3(Fe,Ga)5O12 and Bi3Fe 5O12. A composition adjustment approach is applied by varying the radio frequency (RF) powers driving each sputtering target during the deposition process. This new class of nanocomposite materials exhibits simultaneously high specific Faraday rotation, MO figure of merit, and effective uniaxial magnetic anisotropy after being crystallized through optimized annealing processes. We demonstrate experimentally that the excellent combination of materials' properties obtained in this garnet nanocomposite is particularly advantageous for developing magneto-photonic crystals as well as optical sensors …

Magnetic Photonic Crystals: 1-D Optimization And Applications For The Integrated Optics Devices, Mikhail Vasiliev, Kamal E. Alameh, Vladimir I. Belotelov, Vyacheslav A. Kotov, Anotoly K. Zvezdin

Mikhail Vasiliev

The optimization of multilayer one-dimensional (1-D) magnetophotonic crystals (MPCs) with multiple phase shifts, enabling their design to be tailored to practical photonics applications, is reported. The properties of sample optimized structures suitable for application in infrared intensity modulators are discussed. A novel scheme of high-resolution magnetic field sensing using MPCs is proposed. The effect of material absorption on spectral properties is shown.

Multipartite Entanglement In A Discrete Magnetic Bands Magnetic Lattice, Ahmed Abdelrahman, Peter Hannaford, Mikhail Vasiliev, Kamal Alameh

Mikhail Vasiliev

An asymmetric multi-quantum state magnetic lattice is proposed to host entangled system formed by using Bose Einstein Condensate. Discrete magnetic bands magnetic lattice is devised to locate a controllable long-range entanglement of a many qubits well separated in space. Confinement of the system may improve the condition for long-range entanglement.

Effect Of Oblique Light Incidence On Magnetooptical Properties Of One-Dimensional Photonic Crystals, Mikhail Vasiliev, Vladimir I. Belotelov, Andrey N. Kalish, Vyacheslav A. Kotov, Anotoly K. Zvezdin, Kamal Alameh

Mikhail Vasiliev

We have investigated the magnetooptical properties of one-dimensional magnetic photonic crystals for the case of oblique light incidence. We developed a theoretical model based on the transfer matrix approach. We found several new effects such as transmittance resonance peak shift versus external magnetic field and the Faraday effect dependence on the incidence angle.We discuss several possible one-dimensional magnetic photonic crystals applications for the optical devices.

Experimental Investigation Of Magnetic Circular Dichroism Spectrum And Stress Induced Optical Activity In A Single-Defect Photonic Crystal, Mikhail Vasiliev, Kamal Alameh, Vladimir I. Burkov, V. V. Koledov, Viacheslav A. Kotov, V. G. Shavrov, Anotoly K. Zvezdin

Mikhail Vasiliev

Experimental investigation results for the magnetic circular dichroism spectrum (MCD) of a photonic crystal (PC) are presented. We found that in the vicinity of the transmission peak within the photonic bandgap and also near the bandgap edges, the circular dichroism is measurable even in the absence of any applied magnetic field. The application of magnetic field leads to generating an additional MCD signal measurable at the wavelengths near the “defect mode” transmittance line.

Magneto-Optical Visualisation For High-Resolution Forensic Data Recovery Using Advanced Thin Film Nano-Materials, M Nur-E-Alam, Mikhail Vasiliev, Kamal Alameh, Craig Valli

Mikhail Vasiliev

We develop and characterise new high-performance nano-engineered magneto-optic materials for use in laser-microscopy- based magnetic field visualisers featuring high sensitivity and resolution, low cost and small size. This type of visualisers will make it possible for forensic experts to recover erased data previously stored in high- and ultrahigh-density magnetic disks and hard disk drives.

Technological Challenges Of 1-Dimensional Magnetic Photonic Crystals, Mikhail Vasiliev, Kamal Alameh, Dmitry E. Balabanov, Vladimir I. Burkov, V. V. Koledov, Viacheslav A. Kotov, V. G. Shavrov, Anotoly K. Zvezdin

Mikhail Vasiliev

Visible-region magnetic photonic crystals (MPC) designed for higher-order bandgap operation have been proposed to overcome the technological restrictions originating from the strong thickness dependency of the individual magnetic layer properties observed in MPC structures.

Nano-Engineered High-Performance Magneto-Optic Garnet Materials, Mohammad Nur-E-Alam, Mikhail Vasiliev, Viacheslav Kotov, Kamal Alameh

Mikhail Vasiliev

No abstract provided.

The Properties Of Nanocomposite (Bidy)3(Fega)5o12:Bi2o3 Magneto-Optic Garnet Films For Applications In Nanophotonics, Ultrafast Switching And Integrated Optoelectronics, Mikhail Vasiliev, Mohammad Nur E Alam, Viacheslav Kotov, Kamal Alameh

Mikhail Vasiliev

We investigate the properties and applications of newly-developed RF-sputtered nano-composites with record-high magneto-optic quality (exceeding 25° at 532 nm and 42° at 635 nm). Bi-substituted dysprosium-gallium iron garnet layers with excess co-sputtered bismuth oxide content are demonstrated to possess very attractive optical and magnetic properties, which makes them suitable for novel magneto-optic and nanophotonic applications.

Growth, Characterisation, And Properties Of Bi1.8lu1.2fe3.6al1.4o12 Garnet Films Prepared Using Two Different Substrate Temperatures, Mohammad Alam, Mikhail Vasiliev, Kamal Alameh

Mikhail Vasiliev

We prepare highly Bismuth substituted iron garnet of composition type Bi1.8Lu1.2Fe3.6Al1.4O12 by using low and high substrate temperatures (250°C and 680°C) during the deposition process inside the vacuum chamber of RF magnetron sputtering system. The crystallisation process of this garnet type thin film materials are performed by means of optimised high temperature oven annealing process and conduct several characterisation techniques to obtain and evaluate their properties. All the optimally annealed samples possess very promising and attractive properties. Comparatively low coercive force (below 15 Oe) is achieved in garnet films prepared at high substrate temperature of 680°C, simultaneously with high MO …

Microstructured Arrayed Microfluidic Waveguide Structure For Infrared Radiation Focusing And Transfer, Paul B. Laursen, Kamal Alameh, Mikhail Vasiliev, Nicholas C. Elliot

Mikhail Vasiliev

No abstract provided.

Photonic Nano-Structures For Water Quality Monitoring, Mikhail Vasiliev, Kamal Alameh

Mikhail Vasiliev

We propose a new type of sensors suitable for water quality testing and for monitoring water contamination levels in domestic, industrial and environmental applications. The proposed sensing scheme uses Fourier transform cavity-enhanced absorption spectroscopy and novel compact sensing elements based on nanostructured photonic crystal-type optical coatings enabling the sensitive Fourier-domain processing methodology and maximising the absorption path length within the measurement system. The measurement scheme is shown to be suitable for the determination of small changes in the water absorption coefficients at a discrete set of wavelengths in the visible spectral region in response to small concentrations of pollutants with …