Article
Chemistry, Analytical
Yeonsu Lee, Jiwon Kim, Sungmin Sim, Ignacio Llamas-Garro, Jungmu Kim
Summary: A micromachined chip in Otto configuration with multiple air-gaps was fabricated and its resonance characteristics were measured. It was experimentally verified that the SPR characteristics of the Otto chip configuration depends on the air-gap distance and wavelength of the incident light.
Review
Chemistry, Analytical
Muyang Li, Ragini Singh, Yiran Wang, Carlos Marques, Bingyuan Zhang, Santosh Kumar
Summary: This article concisely summarizes the current advancements in novel nanomaterial-based optical fiber biosensors and highlights the wide application of optical and biological properties of nanomaterials in biosensing. By enhancing sensitivity, limit of detection, specificity, response time, and signal-to-noise ratio, nanomaterials improve the performance of fiber optic biosensors.
Article
Physics, Applied
Weiqi He, Weina Zhang, Jiantian Zhang, Peng Yu, Pu Liu, Guowei Yang, Hongxiang Lei
Summary: Utilizing flexible dielectric material polylactic acid (PLA) doped with high refractive index quantum dots (QDs) as the substrate, a nanowire RI sensor capable of high sensitivity and the highest FOM under white light source is fabricated, showing great potential for biological applications.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Analytical
Zhitao Lin, Yiqing Shu, Weicheng Chen, Yang Zhao, Jianqing Li
Summary: PtSe2 is used to modify traditional SPR biosensors, and a metal-Si-metal waveguide structure is proposed to further improve the performance of the biosensor. The highest sensitivity was achieved with the BK7-Au-Si-Au-PtSe2 (2 nm) biosensor structure.
Article
Chemistry, Analytical
Guiqiang Wang, Kequan Wang, Jiao Ren, Shuang Ma, Zihan Li
Summary: This paper proposes a digital Gaussian filter coupled surface plasmon resonance (SPR) sensor to enhance the sensing performance. Instead of using the shift of resonance angle, the shift of central angle calculated from a doublet is employed. A dynamic and adjustable Gaussian model is used to satisfy the large sensing range need. Experimental results show that this sensor has higher sensitivity and resolution compared to traditional gold-based SPR sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Review
Chemistry, Analytical
Nerea De Acha, Abian B. Socorro-Leranoz, Cesar Elosua, Ignacio R. Matias
Summary: This article focuses on optical fiber biosensors based on luminescence and absorption, analyzing their performance parameters and features, aiming to provide readers with a comprehensive understanding of the various aspects that need to be considered when working with this type of sensors.
Article
Biochemical Research Methods
Xiaoyong Chen, Pin Xu, Wenwei Lin, Jin Jiang, Hang Qu, Xuehao Hu, Jinghua Sun, Yukun Cui
Summary: This study proposes a plasmonic titled fiber Bragg grating biosensor for the detection of breast cancer cells. Experimental results demonstrate that the biosensor has good detection performance, capable of detecting low concentrations of breast cancer cells in a short period of time. The sensor has a simple structure, easy manufacturing process, making it a promising choice for future cancer cell detection.
BIOMEDICAL OPTICS EXPRESS
(2022)
Article
Chemistry, Physical
Edgar J. Patino, S. Leidy Paola Quiroga, Cesar A. Herreno-Fierro
Summary: In this study, we demonstrate the enhancement of the transverse magneto-optical Kerr effect (TMOKE) signal through surface plasmon resonance in the Otto configuration. By using air as the low refractive index dielectric and bringing the sample close to the prism/air interface, surface plasmon excitation in the air/silver interface is achieved, resulting in an increase of the TMOKE signal up to 2 parts per thousand compared to the incident light. This is comparable to previous works using the Kretschmann-Raether configuration.
Article
Chemistry, Analytical
Mengjiao Ren, Chengpeng Ji, Xueyan Tang, Haishan Tian, Leyong Jiang, Xiaoyu Dai, Xinghua Wu, Yuanjiang Xiang
Summary: In this paper, a sensitivity-tunable terahertz (THz) liquid/gas biosensor based on a coupling prism-three-dimensional Dirac semimetal (3D DSM) multilayer structure is studied. The high sensitivity of the biosensor is attributed to the sharp reflected peak caused by surface plasmon resonance (SPR) mode. The reflectance of the biosensor can be modulated by the Fermi energy of 3D DSM, resulting in tunable sensitivity. After parameter optimization, the sensitivity of the liquid biosensor reaches over 100°/RIU. This simple structure provides a reference idea for achieving high sensitivity and tunable biosensor devices.
Article
Engineering, Electrical & Electronic
Seyedeh Bita Saadatmand, Mohammad Javad Haji Najafi Chemerkouh, Vahid Ahmadi, Seyedeh Mehri Hamidi
Summary: In this article, a new type of surface plasmon resonance (SPR) sensor is proposed, which uses SrTiO3 and MXene as interlayers to improve the sensitivity and performance of conventional SPR sensors. Through optimization design, the theoretical results show that the proposed sensor has high sensitivity, accuracy, and a wide detection range, indicating great potential in diagnostic applications and portable biosensors.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Analytical
Shimeng Chen, Yun Liu, Qingxu Yu, Wei Peng
Summary: A novel SPR biosensing approach with low LOD, high sensitivity, and extensive applicability was introduced in this study. By optimizing the SPR sensor structure and employing a self-referencing sensing strategy, the low LOD of 0.2 fM was achieved.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Biophysics
Tomas Springer, Zdenek Krejcik, Jiri Homola
Summary: A novel and extremely sensitive label-free optical biosensor-based assay for the detection of miRNAs has been proposed, which enhances specific sensor response while suppressing non-specific binding interference. The assay has been successfully applied to detect miRNAs related to myelodysplastic syndromes in blood plasma, achieving a low detection limit and enabling multiplexed miRNA detection.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Shuo Liu, Rui Ma, Yuanwei Li, Linwan Zhao, Yuanqin Xia, Xiaolong Dong, Yajun Pang
Summary: This study introduces a terahertz surface plasmon biosensor based on MoS2 for detecting blood components. The sensor exhibits ultra-high wavelength sensitivity and resolution ratio, with a significant influence from the thickness of MoS2.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Md. Nadim Hossain, Jahid Tanvir, Mst. Nargis Aktar, Kawsar Ahmed
Summary: In this study, a photonic crystal fiber (PCF) biosensor based on the surface plasmon resonance (SPR) mechanism was investigated for detecting petrol adulteration in bio-sensing research. The performance of the proposed sensor was optimized by varying various parameters such as adulteration level, plasmonic layer width, analyte layer length, fiber core diameter, and plasmonic materials. The results showed that the maximum sensitivity was achieved for a 10% petrol adulteration level using platinum as the plasmonic material.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Hirotaka Uzawa, Takehiro Nagatsuka, Yasuo Seto, Yoshihiro Nishida, Masato Saito, Eiichi Tamiya
Summary: Glycolipid chips with a double layer of Au nanoparticles were developed for detecting biological toxins. The chips consisted of an under and an upper layer of Au nanoparticles on glass plates, linked with 1,8-octanedithiol using a self-assembled monolayer technique. A tris-sialo glycosphingolipid, ganglioside GT1b, was immobilized on the upper layer and botulinum toxin was detected using localized surface plasmon resonance (LSPR). The GT1bCer-coated chip with a double layer of Au nanoparticles showed enhanced LSPR detection of the toxin compared to single monolayers. The combination of 60 and 40 nm Au nanoparticles in the under and upper layer, respectively, achieved the best results for toxin detection below 5 ng/mL using a portable LSPR device.
Article
Optics
Shemsi Shaqiri, Shyqyri Haxha
Article
Telecommunications
Mian Mujtaba Ali, Shyqyri Haxha, Munna M. Alam, Chike Nwibor, Mohamed Sakel
WIRELESS PERSONAL COMMUNICATIONS
(2020)
Article
Engineering, Electrical & Electronic
Ahmet Yasli, Huseyin Ademgil, Shyqyri Haxha, Amar Aggoun
IEEE PHOTONICS JOURNAL
(2020)
Article
Engineering, Electrical & Electronic
Mohamed Omri, Faouzi Ouerghi, Fathi Abdelmalek, Shyqyri Haxha
IEEE SENSORS JOURNAL
(2020)
Article
Engineering, Electrical & Electronic
Iddrisu Danlard, Emmanuel Kofi Akowuah
Summary: The new quasi D-shaped plasmonic photonic crystal fiber microsensor with dual polarization enables simultaneous measurement of refractive index and temperature with high sensitivity and resolution. By incorporating special materials and design within the fiber structure, effective multiparameter sensing is achieved, with potential applications in various fields.
IEEE SENSORS JOURNAL
(2021)
Article
Computer Science, Information Systems
Hichem Mrabet, Abdelhamid Cherifi, Thiago Raddo, Iyad Dayoub, Shyqyri Haxha
Summary: This article provides a detailed survey on asynchronous and synchronous OCDMA systems based on different codes, discussing coding schemes, detection techniques, and performance comparisons of the main systems from the last two decades. A new comparative study shows that the 3-D MD code outperforms others in terms of performance, data rates, and number of users.
IEEE SYSTEMS JOURNAL
(2021)
Article
Computer Science, Information Systems
Asmaa Benieddi, Sid Ahmed Elahmar, Iyad Dayoub, Shyqyri Haxha
Summary: This article presents a low-complexity adaptive equalizer TEQ for optical OFDM systems, which reduces system adaptation complexity significantly through the design of the MERO algorithm and deployment of symmetrical TEQ properties. The study demonstrates that up to 50% reduction in system adaptation complexity can be achieved through optimizing system parameters. The low-complexity MERO simulation model shows superior performance with a shorter CP length compared to existing conventional algorithms, while maintaining lower complexity levels.
IEEE SYSTEMS JOURNAL
(2021)
Article
Computer Science, Information Systems
Taimur Nazir Mirza, Shyqyri Haxha, Iyad Dayoub
Summary: An improved linearized analog microwave photonic link (AMPL) with a significant multioctave bandwidth performance is experimentally presented in this study. The system configuration is designed to process a carrier suppressed double-sideband signal through the link, demonstrating a fundamental signal to interference ratio of 60 dB. The use of gallium arsenide (GaAs) modulators instead of lithium niobate (LiNbO3) modulators provides better system stability and performance in harsh operating environments.
IEEE SYSTEMS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Mian Ali, Shyqyri Haxha, Ian Flint
Summary: A Tuneable Microwave Photonics Gain Filter (TMWPF) based on Stimulated Brillouin Scattering (SBS) is proposed, which has high gain and bandwidth variations for high precision applications.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
Isaac Owusu Mensah, Emmanuel Kofi Akowuah, Iddrisu Danlard, Alexander Kwasi Amoah
Summary: This paper presents a single-polarization filter based on PCF with plasmonic layers of gold and indium tin oxide (ITO). The properties of the filter for the two fundamental orthogonal polarizations are analyzed using the finite element method. A filtering effect is achieved in the communication window by optimizing the structural factors as well as gold film and ITO deposition thicknesses. The proposed filter shows superior characteristics compared with previously reported results.
INTERNATIONAL JOURNAL OF OPTICS
(2022)
Article
Engineering, Electrical & Electronic
Chike Nwibor, Shyqyri Haxha, Mian Mujtaba Ali, Mohamed Sakel, Anda Rexha Haxha, Karen Saunders, Shakira Nabakooza
Summary: This article presents the design and implementation of an IoT-based remote health monitoring system for estimating BP, HR, and SpO2 levels. A sensor is used to remotely monitor these parameters, and the collected data is stored on a remote platform called ThinkSpeak. The system includes a display for viewing health readings locally.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Maria Jabeen, Shyqyri Haxha, Ian Flint, Turgut Ozturk, Martin D. B. Charlton, Fathi AbdelMalek
Summary: This article proposes a unique structure of InP/InGaAs uni-traveling-carrier photodiode (UTC-PD). Compared to traditional photodiodes, the UTC-PD has a simpler epitaxial layer structure while maintaining high bandwidth and high output power loss characteristics. Simulated results show that a large built-in electric field can be generated under illumination, which enhances carrier velocity. Additionally, the photogeneration and light absorption of UTC-PDs are improved by incorporating a step-like internal texture of cones and dots profile in the photo absorption layer.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Analytical
Daniel Neves, Anderson Sanches, Rafael Nobrega, Hichem Mrabet, Iyad Dayoub, Kohei Ohno, Shyqyri Haxha, Ivan Glesk, Antonio Jurado-Navas, Thiago Raddo
Summary: This paper proposes a novel mobile fronthaul network architecture based on free-space optical (FSO) technologies, spread spectrum codes, and graphene modulators for the creation of dense small cells. The network utilizes an energy-efficient graphene modulator to transmit data bits that are coded with spread codes for higher security before being transmitted via high-speed FSO transmitters to remote units. Analytical results show that the new fronthaul mobile network can support up to 32 remote antennas with error-free transmissions and forward error correction. Additionally, the optimized graphene modulator achieves high-speed performance up to 42.6 GHz while consuming only 4.6 fJ/bit and using one-quarter of graphene.
Article
Computer Science, Information Systems
Mohamed Alom, Shyqyri Haxha, Amar Aggoun
Proceedings Paper
Engineering, Industrial
Mian Mujtaba Ali, Omer Farooq, Muhammd H. D. Khan, Shyqyri Haxha
5TH INTERNATIONAL CONFERENCE ON INFORMATION MANAGEMENT (ICIM 2019)
(2019)
