Explanipedia

Swelling and Rheological Characterization of Preformed Particle Gels for Improved Water Shutoff Performance in Core Flooding Tests Open

Mohammed Salih, Abbas Khaksar Manshad, Sherwan M. Simo · 2025

There are numerous challenges in producing water effluents in established reservoirs, which could eventually result in their abandonment. Preformed Particle Gel (PPG) is employed in gel to water the cutoff treatment of such reservoirs, a p…

Second and third harmonic generation in topological insulator-based van der Waals metamaterials Open

Alessandra Di Gaspare, Sara Ghayeb Zamharir, Craig Knox, Ahmet Yagmur, Satoshi Sasaki , et al. · 2025

High-order harmonic generation (HHG) in solids—the frequency up-conversion of an optical signal—is governed by symmetries. At terahertz (THz) frequencies, HHG is a key technology to access high-frequency spectral windows that are usually d…

Free-space and polarization maintaining delivery of terahertz radiation from a quantum cascade laser in a dry dilution refrigerator Open

M. T. Vaughan, Wladislaw Michailow, Rong Xia, Lianhe Li, Mohammed Salih , et al. · 2025

We demonstrate a free-space terahertz (THz) optical system inside a dry dilution refrigerator that allows us to direct polarized THz radiation from a quantum cascade laser (QCL) to a sample held at a base temperature of 28 mK. The sample t…

Free-space Optical Communications at 4 Gbit/s Data Rate with a Terahertz Laser Open

Elumalai Jayaprasath, Mohammed Salih, Martyn J. Fice, Adam Brown, Lianhe Li , et al. · 2025

Terahertz-frequency (THz) carrier waves in free-space optical (FSO) communications offer the potential for >1 Tbit/s data rates and stable latency. They offer wider bandwidths than available in the microwave region, together with reduced s…

Membrane-Mediated Conversion of Near-Infrared Amplitude Modulation into the Self-Mixing Signal of a Terahertz Quantum Cascade Laser Open

Paolo Vezio, Andrea Ottomaniello, Leonardo Vicarelli, Mohammed Salih, Lianhe Li , et al. · 2025

A platform for converting near-infrared (NIR) laser power modulation into the self-mixing (SM) signal of a quantum cascade laser (QCL) operating at terahertz (THz) frequencies is introduced. This approach is based on laser feedback interfe…

Terahertz Multicolor Imaging of Opaque Objects Using Self-Mixing Interferometry with Quantum-Cascade Lasers Open

J. Cai, Yan Xie, Yingxin Wang, Meng Chen, Lianhe Li , et al. · 2025

Self-mixing interference in a terahertz quantum-cascade laser has been demonstrated to be suitable for the detection of weak signals scattered or reflected by the target. This technology has achieved the high-sensitivity detection of compl…

AI-Enhanced Scholarly Communication: Transforming Peer Review, Knowledge Dissemination, and Academic Publishing Workflows in the Digital Era Open

Mohammed Salih, Tahir Gul, Syeda Sumblah Bukhari, Iram Liaqat, Anam Majeed · 2025

Novel C7 anisidinoquinolones with advantageous antibacterialactivity in nanoscale concentrations against standard andresistant bacterial strains Open

Somia M. ElSheikhi, Rula M. Darwish, Yusuf Al‐Hiari, Violet Kasabri, Mohammed Salih · 2024

8×8 Patch-Antenna-Coupled TeraFET Detector Array for Terahertz Quantum-Cascade-Laser Applications Open

Jakob Holstein, N. K. North, Michael D. Horbury, Sanchit S. Kondawar, Imon Kundu , et al. · 2024

Monolithically integrated, antenna-coupled field-effect transistors\n(TeraFETs) are rapid and sensitive detectors for the terahertz range\n(0.3-10~THz) that can operate at room temperature. We conducted experimental\ncharacterizations of a…

Power stabilization of a terahertz-frequency quantum-cascade laser using a photonic-integrated modulator Open

Sanchit S. Kondawar, N. K. North, Yingjun Han, Diego Pardo, N. Brewster , et al. · 2024

We demonstrate a technique to stabilize the emission from a 3.4-THz quantum-cascade laser against power drifts, using a recently developed photonic integrated circuit (PIC) structure formed by coupling a racetrack resonator with a ridge wa…

Terahertz near-field microscopy of metallic circular split ring resonators with graphene in the gap Open

Chiara Schiattarella, Alessandra Di Gaspare, Leonardo Viti, Manuel Alejandro Justo Guerrero, Lianhe Li , et al. · 2024

Optical resonators are fundamental building blocks of photonic systems, enabling meta-surfaces, sensors, and transmission filters to be developed for a range of applications. Sub-wavelength size (< λ/10) resonators, including planar split-…

Classification of Brain Tumor Diseases Using Data Augmentation and Transfer Learning Open

Hadeel Moutaz Al-Dabbas, Mohammed Salih · 2024

An accumulation of aberrant cells called a brain tumor is the outcome of unregulated cell division. Brain cancers can be found using magnetic resonance imaging (MRI). The exponential growth of deep learning networks has allowed us to tackl…

Compact terahertz harmonic generation in the Reststrahlenband using a graphene-embedded metallic split ring resonator array Open

Alessandra Di Gaspare, Chao Song, Chiara Schiattarella, Lianhe Li, Mohammed Salih , et al. · 2024

Harmonic generation is a result of a strong non-linear interaction between light and matter. It is a key technology for optics, as it allows the conversion of optical signals to higher frequencies. Owing to its intrinsically large and elec…

Microscopy of terahertz spoof surface plasmons propagating on planar metamaterial waveguides Open

Nikollao Sulollari, S. J. Park, Mohammed Salih, Pierluigi Rubino, Andrew D. Burnett , et al. · 2024

Surface plasmon polaritons (SPPs) are electromagnetic waves that have attracted significant interest owing to their subwavelength confinement and the strong field enhancement that they provide. Yet in the terahertz (THz) frequency region o…

Terahertz microscopy using laser feedback interferometry based on a generalised phase-stepping algorithm Open

Daniel Mohun, Nikollao Sulollari, Mohammed Salih, Lianhe Li, J. E. Cunningham , et al. · 2024

Enhanced Delivery and Detection of Terahertz Frequency Radiation from a Quantum Cascade Laser Within Dilution Refrigerator Open

M. T. Vaughan, Wladislaw Michailow, Michael Loong Peng Tan, Mohammed Salih, Lianhe Li , et al. · 2023

We report on significant enhancements to the integration of terahertz (THz) quantum cascade lasers (QCL) and THz detection with a two-dimensional electron gas (2DEG) within a dilution refrigerator obtained by the inclusion of a multi-mesh …

Liquid-Crystal-Based Controllable Attenuators Operating in the 1-4 Terahertz Band Open

Aniela Dunn, Zhaopeng Zhang, Michael D. Horbury, Eleanor Nuttall, Yingjun Han , et al. · 2023

Liquid-crystal devices (LCDs) offer a potential route toward adaptive optical components for use in the < 2 THz band of the electromagnetic spectrum. We demonstrate LCDs using a commercially available material (E7), with unbiased birefring…

High-power density, single plasmon, terahertz quantum cascade lasers via transverse mode control Open

Chunying Song, Mohammed Salih, Lianhe Li, J. Mangeney, J. Tignon , et al. · 2023

Terahertz (THz) quantum cascade lasers (QCLs) have been shown to emit peak powers greater than 1 W from a single facet in a single plasmon geometry. However, this is typically achieved by increasing the laser ridge width, resulting in high…

Waveguide integration of a >4.7‐THz quantum‐cascade laser Open

Eleanor Nuttall, Yingjun Han, Diego Pardo, Sanchit S. Kondawar, N. Brewster , et al. · 2023

Waveguide integration of terahertz quantum cascade lasers (THz QCLs) is demonstrated at frequencies above 4.7 THz. A precision micromachining technique, followed by diamond‐turning and electroless‐plating has been used to manufacture hollo…

Directed delivery of terahertz frequency radiation from quantum cascade lasers within a dry 3He dilution refrigerator Open

M. T. Vaughan, Wladislaw Michailow, Mohammed Salih, Lianhe Li, Harvey E. Beere , et al. · 2022

We present a scheme for the full integration of terahertz (THz) frequency quantum cascade lasers (QCLs) within a dilution refrigerator in order to provide a directed delivery of THz power into the sample space. We describe a successful ope…

Newly Substituted Anilino-Fluoroquinolones with Proliferation Inhibition Potential against a Panel of Cancer Cell Lines Open

Mohammed Salih, Yusuf Al‐Hiari, Violet Kasabri, Rula M. Darwish, Hamza Abumansour , et al. · 2022

Collectively, this work reveals lipophilic-acidic chelator FQs as authentic agents for the repurposing approach in anticancer chemotherapy/prevention.

Waveguide integration of a >4.7-THz quantum-cascade laser Open

Eleanor Nuttall, Yingjun Han, Diego Pardo, Sanchit S. Kondawar, N. Brewster , et al. · 2022

We have demonstrated waveguide integration of terahertz quantum cascade lasers (THz QCLs) at frequencies above 4.7 THz. A precision micromachining technique, followed by diamond-turning and electroless-plating has been used to manufacture …

Preparing WorldView2 Imagery for Map Updating Projects – Aldjyl/ Aleibayiji (Iraq/ North Baghdad) as a Case Study Open

Oday Zakariya Jasim, Mohammed Salih, Ahmed Luaibi · 2021

In the presented study, a WorldView2 WV2 satellite image has been prepared to be used in map updating projects. The performed operations can be classified into two categories, the first category includes pansharpening methods for creating …

Issue Information Open

Ngoc Thang, Quang Bach, Thang Le, Jorge Ferreira, Alexandre Florindo Alves , et al. · 2021

Wiley's Corporate Citizenship initiative seeks to address the environmental, social, economic, and ethical challenges faced in our business and which are important to our diverse stakeholder groups.Since launching the initiative, we have f…

High-speed modulation of a terahertz quantum cascade laser by coherent acoustic phonon pulses Open

Aniela Dunn, Caroline L. Poyser, Paul Dean, Aleksandar Demić, A. Valavanis , et al. · 2020

Dataset associated with 'High-Speed Modulation of a Terahertz Quantum Cascade Laser by Coherent Acoustic Phonon Pulses' Open

Aniela Dunn, Caroline L. Poyser, Paul Dean, Aleksandar Demić, A. Valavanis , et al. · 2020

This archive contains the dataset associated with the publication entitled ‘High-Speed Modulation of a Terahertz Quantum Cascade Laser by Coherent Acoustic Phonon Pulses'. Fast modulation of lasers is a fundamental requirement for applicat…

CARGC Briefs Volume I: ISIS Media Open

Yara M. Damaj, Michael Degerald, Kareem El Damanhoury, Katerina Girginova, Rowan Howard–Williams , et al. · 2019

The essays that comprise CARGC Briefs Volume I: ISIS Media began their lives as presentations at a small, by-invitation workshop, “Emerging Work on Communicative Dimensions of Islamic State,” held on May 3-4, 2017 at the Center for Advance…

Selecting optimum railway track using GIS techniques Open

Amjed N. AL-Hameedawi, Mohammed Salih, Haidar Mohammed, Maher Hassan · 2018

This paper mainly aims at analysing and selecting the best railway route within the Karbala City. The significance of having suitable locations for railway route is recognized as a crucial element in the pursuit to improve the quality of p…

Multi‐Watt high‐power THz frequency quantum cascade lasers Open

Lianhe Li, L. Chen, Joshua R. Freeman, Mohammed Salih, Paul Dean , et al. · 2017

Multi‐Watt high‐power terahertz (THz) frequency quantum cascade lasers are demonstrated, based on a single, epitaxially grown, 24‐μm‐thick active region embedded into a surface‐plasmon waveguide. The devices emit in pulsed mode at a freque…

Analysis and Design of Capacitive DAC Array Switching Scheme for SAR ADC in Low Power Applications Open

Mohammed Salih, G Renjith. · 2016

Successive-approximation ADCs (SA-ADCs) have found a wide range of applications requiring low speed and moderate resolution, very-high speed and low resolution or even high speed and high resolution Low-power SA-ADCs have been widely used …

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