Article
Materials Science, Multidisciplinary
Melissa Najem, Franck Carcenac, Thierry Taliercio, Fernando Gonzalez-Posada
Summary: Plasmonic nanoantennas have great potential for biosensing applications, providing real-time detection and identification of molecular bio-information. This article presents a barcode-like nanostructured surface based on a metal-insulator-metal platform, which exhibits tunable localized surface resonances. The fabrication and optical characterization of periodic arrays of aluminum bowties within the MIM structure, as well as the investigation of surface-enhanced infrared absorption, are reported.
ADVANCED OPTICAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Dongxiao Li, Cheng Xu, Junsheng Xie, Chengkuo Lee
Summary: Infrared absorption spectroscopy is limited by the low infrared absorption cross-section of molecules, but Surface-Enhanced Infrared Absorption (SEIRA) spectroscopy overcomes this limitation by amplifying the vibrational signals of trace molecules. SEIRA technology has attracted great interest and has been applied in various sensing applications.
Article
Chemistry, Physical
Yan Wei, Zijie Mao, Xian-Yin Ma, Chao Zhan, Wen-Bin Cai
Summary: This study explores the use of localized surface plasmon resonance (LSPR) effect to enhance the electrocatalytic ethanol oxidation reaction under visible light in alkaline media. The Au@Pt nanoparticles with plasmonic core and active shell exhibit higher activity and selectivity under illumination. In situ surface IR spectroscopy provides molecular level insights into the reaction mechanism. This research expands the application of plasmonic electrocatalysis and in situ surface IR spectroscopy, and offers a promising approach for tuning complex reaction pathways.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Mohammad Reza Rakhshani
Summary: This study investigates the design of a localized surface plasmon resonance (LSPR)-based sensor using a narrowband metamaterial absorber with a gold nanoparticle array. The LSPR-based sensor has various applications in clinical analysis and environmental monitoring. Simulation results show that the proposed structure has a absorption bandwidth of 5.7nm, indicating high efficiency and accuracy in detection. Additionally, as a refractive index sensor, it exhibits a sensitivity of S = 964nm/RIU and a large figure of merit (FOM = 1.653 x 10(4) RIU-1). The proposed design is polarization independent, eliminating the need for polarization requirements in equipment. Furthermore, the array is demonstrated as a biosensor for label-free clinical sensing, particularly for virus detection.
IEEE SENSORS JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Katelyn Dixon, Xiangchao Zhu, Liang Chen, Arthur Montazeri, Naomi Matsuura, Nazir P. Kherani, Hoi-Ying N. Holman
Summary: Surface enhanced infrared absorption (SEIRA) spectroscopy is a powerful technique for molecular detection, and this study presents a high-throughput and cost-effective plasmonic metasurface for strong and tunable infrared signal enhancement. By using dispersion-engineered plasmonic Fabry-Perot (FP) nanocavity arrays, this platform can tightly squeeze infrared photons into sub-wavelength volumes and achieve spectrally tunable near-field enhancements. The technology offers a nearly 10(5) enhancement factor at the carbonyl (C = O) vibrational marker band of a molecule, making it a promising platform for SEIRA spectroscopy.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Niclas S. Mueller, Emanuel Pfitzner, Yu Okamura, Georgy Gordeev, Patryk Kusch, Holger Lange, Joachim Heberle, Florian Schulz, Stephanie Reich
Summary: Research shows that plasmonic supercrystals, with a high density of hotspots, are an excellent platform for enhancing vibrational spectra by increasing the cross section of Raman scattering and infrared absorption. The study demonstrates that the intensity of surface-enhanced Raman scattering inside the crystal is uniform and predictable, with supercrystal polaritons inducing resonances in the enhanced cross section for both Raman scattering and infrared absorption. The enhancement of infrared absorption within supercrystals is attributed to the combined effects of hotspot formation and the excitation of standing polariton waves.
Article
Chemistry, Multidisciplinary
Xianglong Miao, Ting Shan Luk, Peter Q. Liu
Summary: Surface-enhanced infrared absorption (SEIRA) spectroscopy is a label-free and nondestructive method for detecting and identifying analytes with high sensitivity and specificity. This study demonstrates high-performance nanophotonic SEIRA sensors based on nanopatch antennas with a liquid gallium ground plane, which show ultrahigh field confinement and enhancement, and allow for convenient and efficient delivery of analytes into nanometric hot spots.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Analytical
Hao Wu, Yangxi Zhang, Zhi-Zheng Wang, A. Ping Zhang
Summary: Infrared absorption-spectroscopy (IRAS) is a useful tool for identifying and characterizing molecular species. Plasmonic substrates have greatly enhanced the performance of IRAS technology for high-sensitivity biochemical detection, but their fabrication is still challenging and costly. This study presents a precision photoreduction and replacement reaction combined technology to directly print plasmonic substrates for PEIRAS biodetection. Experimental results show that the printed plasmonic substrate can detect bovine serum albumin at a concentration level of 10 nM, indicating its promising application in IRAS biodetection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Multidisciplinary
Dongxiao Li, Hong Zhou, Xindan Hui, Xianming He, He Huang, Jiajia Zhang, Xiaojing Mu, Chengkuo Lee, Ya Yang
Summary: A multifunctional chemical sensing platform based on dual-resonant SEIRA device is reported for sensitive and multifunctional on-chip detection of PECA. The sensor offers dual-band fingerprint vibration identification, sub-nm level detection limit, and ultrahigh sensitivity in thickness measurement, showing potential for on-chip chemical sensing.
Article
Chemistry, Multidisciplinary
Jialong Peng, Hyeon-Ho Jeong, Michael Smith, Rohit Chikkaraddy, Qianqi Lin, Hsin-Ling Liang, Michael F. L. De Volder, Silvia Vignolini, Sohini Kar-Narayan, Jeremy J. Baumberg
Summary: This study introduces flexible active plasmonic metafilms constructed by printing electrochromic nanoparticles onto ultrathin metal films (<15 nm), providing low-power electrically driven color switching, and opening up potential for fully printed electrochromic devices. Differences in plasmonic mode excitation between nanoparticles and ultrathin metal films result in directional optical effects and dynamics where perceived upward and downward colorations can differ.
Article
Nanoscience & Nanotechnology
Yongkang Gong, Kang Li, Nigel Copner, Heng Liu, Meng Zhao, Bo Zhang, Andreas Pusch, Diana L. Huffaker, Sang Soon Oh
Summary: The proposed electrically controlled thermal emitter based on nanophotonic engineering with layered metamaterials demonstrates significantly enhanced emissivity in the broad infrared wavelengths and optical features of a strong photonic bandgap. The electrically driven metamaterial devices are optically and thermally stable at temperatures up to 800K with an electro-optical conversion efficiency of approximately 30%, providing a novel alternative for cost-effective, compact, low glare, and energy-efficient infrared heating.
Article
Optics
Min Sun, Zhanghua Han
Summary: In this study, the use of quasi-guided modes in a distorted photonic lattice is proposed to address the challenge of spectral matching in photonic structure fabrication. The advantage and flexibility of this scheme in terahertz sensing are demonstrated, and the exclusive detection of alpha-lactose with nanometer-scale thickness is achieved.
Review
Nanoscience & Nanotechnology
Takuo Tanaka, Taka-aki Yano, Ryo Kato
Summary: Infrared spectroscopy is a powerful technique for molecular information, but suffers from low absorption cross-section. SEIRA technology, supported by nanometer scale structures, enhances IR signals by exploiting the field enhancement properties of surface plasmon resonance. Recently, resonant SEIRA technique has significantly improved signal enhancement factor.
Article
Biochemical Research Methods
Seva Ioussoufovitch, David Jonathan Fulop Cohen, Daniel Milej, Mamadou Diop
Summary: The study introduces a TR spectrometer architecture based on compressed sensing and time-correlated single-photon counting to address the challenges of quantifying light absorbers in highly scattering media. Experimental results demonstrate that the method can more accurately quantify absorption changes in tissue-mimicking samples and exhibits superior depth sensitivity.
BIOMEDICAL OPTICS EXPRESS
(2021)
Article
Chemistry, Multidisciplinary
Xindan Hui, Cheng Yang, Dongxiao Li, Xianming He, He Huang, Hong Zhou, Ming Chen, Chengkuo Lee, Xiaojing Mu
Summary: A plasmonic biosensor based on SEIRA for rapid, label-free, and ultrasensitive detection of miR-155 is reported. The use of TDN as carriers greatly improves the limit of detection of the biosensor.
Article
Materials Science, Multidisciplinary
Erdem Aslan, Ekin Aslan, Mustafa Turkmen, Omer Galip Saracoglu
Article
Chemistry, Analytical
Erdem Aslan, Sabri Kaya, Ekin Aslan, Semih Korkmaz, Omer Galip Saracoglu, Mustafa Turkmen
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Engineering, Electrical & Electronic
Sekip Esat Hayber, Timucin Emre Tabaru, Serkan Keser, Omer Galip Saracoglu
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2018)
Article
Optics
Sekip Esat Hayber, Timucin Emre Tabaru, Omer Galip Saracoglu
OPTICS COMMUNICATIONS
(2019)
Article
Engineering, Electrical & Electronic
Sekip-Esat Hayber, Timucin-Emre Tabaru, Umut Aydemir, Omer-Galip Saracoglu
JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS
(2019)
Article
Engineering, Electrical & Electronic
Timucin Emre Tabaru, Sekip Esat Hayber, Serkan Keser, Omer Galip Saracoglu
SENSORS AND ACTUATORS A-PHYSICAL
(2019)
Article
Engineering, Electrical & Electronic
Erdem Aslan, Ekin Aslan, Omer Galip Saracoglu, Mustafa Turkmen
SENSORS AND ACTUATORS A-PHYSICAL
(2019)
Article
Engineering, Electrical & Electronic
Sekip Esat Hayber, Umut Aydemir, Timucin Emre Tabaru, Omer Galip Saracoglu
IEEE SENSORS JOURNAL
(2019)
Article
Engineering, Electrical & Electronic
Erdem Aslan
Summary: Enhancement of magnetic dipole emission in the near-infrared spectrum using germanium hollow nanodisk resonator shows a higher enhancement factor compared to previous studies using dielectric nanostructures. The electromagnetic behavior of the resonator is revealed through near-electromagnetic-field enhancement maps and multipolar decomposition of electromagnetic scattering modes. The research may provide a novel strategy for engineering chip-scale nanophotonic applications.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Ekin Aslan
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
(2020)
Article
Materials Science, Multidisciplinary
Erdem Aslan
Summary: Dielectric nanoparticles exhibit low-loss electric and magnetic Mie-type resonances, enabling key applications such as all-photonic quantum information processing. A novel dielectric resonator architecture based on nested hollow nanodisks is proposed to achieve dual-band magnetic dipole resonances in the visible and near-infrared range, potentially maximizing the application potential of magnetic dipole emission.
Article
Engineering, Electrical & Electronic
Erdem Aslan, Ekin Aslan
Summary: This study presents a silicon-based composite nanostructure that enhances the magnetic Purcell effect. By using simulations and analyzing multipole modes, the underlying mechanism of the device is revealed. The results of this study have great potential for implementing nanoscale light sources in ultra-high-speed optical networks.
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS
(2022)
Article
Optics
Timucin Emre Tabaru, Sekip Esat Hayber, Omer Galip Saracoglu
CURRENT OPTICS AND PHOTONICS
(2018)
Article
Engineering, Electrical & Electronic
Kehao Feng, Zhenghua Zhang, Guohua Bai, Xiuyuan Fan, Rongzhi Zhao, Xuefeng Zhang
Summary: This paper proposes a new method to accurately evaluate the high-frequency power loss of soft magnetic materials. Through a two-step calibration, the system is able to compensate for the phase angle discrepancy between the exciting current and induced voltage, enabling a higher power loss measurement frequency.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Mingfang Kang, Tong Liu, Hongmei Sun, Lin Li, Keliang Wang
Summary: In this study, the absorption performance of ambient nitrogenous toxic gases on a monolayer of blue phosphorus phase germanium selenide (GeSe) was investigated using density-functional theory calculations. The results showed that GeSe monolayer exhibits higher sensitivity and selectivity for the hazardous gas NO.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Yaqiong Niu, Zhicheng Zou, Longsheng Cheng, Chaofeng Ye
Summary: This paper proposes a novel method to stabilize the laser diode output using a close-loop control with two feedbacks. The proposed method performs better for long-time operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jiajie Li, Ying Liu, Zhen Chai, Qian Cao, Renjie Li, Yueyang Zhai
Summary: This study proposed an efficient and high-quality beam-splitting method based on a diffractive optical element, enabling multichannel SERF atomic magnetometers to achieve ultra-high consistency and sensitivity. It has significant applications in array biomagnetic measurement systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
E. Oliveira, C. Doering, H. Fouckhardt
Summary: With the development of Lab on a chip technology, fluid management using dispersed droplets has become an important approach. Electrowetting on dielectric (EWOD) is one method for droplet actuation, but it requires prior definition of droplet positions. Optoelectrowetting (OEW) goes further by allowing changes in electrical parameters through impinging light spots, without the need for predefined droplet positions. This study re-evaluates the key parameters of OEW and explores their effects on droplet actuation using numerical optimization methods.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Haipeng Wang, Zhiguo Wang, Gancheng Zhu, Shuai Zhang
Summary: A novel capacitive proximity skin was developed to improve the performance of robotics in handling liquid-filled containers. This skin features a flexible structure that can adapt to different grippers and seamlessly integrate with Robot Operating System. Experimental results demonstrated that this proximity skin achieved data-lossless detection and contactless measurement of liquid level, making it suitable for grasping operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Tsenguun Byambadorj, Xiangyu Zhao, Yutao Qin, Yogesh B. Gianchandani
Summary: In this research, a monolithically microfabricated Knudsen pump (KP) without suspended membranes was presented. These pumps offer improved mechanical robustness, wider process window, and simplified microfabrication process compared to previous designs. The experimental results matched the modeling results well, indicating the potential for monolithic integration onto complex lab-on-a-chip systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Hamed Karami, Saeed Karami Chemeh, Vahid Azizi, Hooman Sharifnasab, Jose Ramos, Mohammed Kamruzzaman
Summary: Aroma is a significant quality trait for pharmaceutical plants and their products, indicating the quality of the raw material. An electronic nose is an efficient approach for identifying and evaluating the aroma of essential oils. In this study, tarragon was dried at different temperatures and air velocities, and the purity of tarragon essential oil was evaluated using an electronic nose. Multivariate data analysis and artificial neural networks modeling were employed to quantify and classify the obtained essential oils.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Xiaoyang Duan, Dan Xu, Wenjun Jia, Ran Li, Bohao Sun, Ruitian Yan, Wenjie Zhao
Summary: Flower-like WO3/WS2 heterojunction materials constructed via a low-temperature in-situ oxidation method exhibit significant improvements in the detection of NO2 gas in gas sensors, along with good selectivity and reproducibility.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Peng Yu, Mengyang Zhang, Manqi You, Yuxi Gao, Landong Xiao, Yan Peng, Jingxia Lai, Zhouzhao Shi, Siwei Luo, Gencai Guo, Gang Guo
Summary: Recent studies have shown that two-dimensional Janus transition metal dichalcogenides (TMDs) have great potential for applications in gas sensors. By conducting first principles calculations, this study explores the potential application of Pd-doped monolayer HfSeS as gas sensor materials for detecting CO, CO2, NH3, and NO. The results demonstrate the good thermodynamical stability and reversible adsorption of these molecules on both pristine and Pd-doped HfSeS, with Pd-doped HfSeS showing higher sensitivity towards NO due to its metallic behavior upon NO adsorption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jinlan Yang, Linjiao Li, Jun Huang, Quan Zhang, Hiba Affane
Summary: This study proposes a method for large-scale aggregation of micro-particles by creating a vortex region using low-frequency oscillation. Experimental results show that this method can achieve a large aggregation area and has the advantages of low cost and low power consumption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jitendra Singh, Saurabh Kumar Gupta, Vinita
Summary: In this investigation, a Surface Acoustic Wave (SAW) formalin gas sensor was explored for low-level formalin gas sensing applications. The sensor showed stable response and high sensitivity to formalin gas concentration, making it a reliable and useful sensor for room temperature operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Junyao Wang, Yahao Liu, Huan Liu, Qi Hou, Jianxin Xu, Hongxu Pan, Jingran Quan, Yansong Chen, Hanbo Yang, Lixiang Li
Summary: A flexible electrode with a serpentine-shaped tetra-chiral structure was designed to improve the mechanical properties and prevent mechanical fracture of flexible electrodes. The research demonstrated that this structure reduced the maximum tensile stress by 87.19% compared to the existing tetra-chiral structure. The flexible electrode remained conductive even at a strain of 70% and showed resistance values of 5 ohm and 4.4 ohm at a bending angle of 180 degrees and after 1000 fold cycles. Furthermore, the flexible electrodes showed great potential in biological signal monitoring, particularly in collecting ECG and pulse signals.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Taihao Chen, Yong Fang, Mengru Zhu, Zhiwei Zhao, Wei Lei, Zhuoya Zhu, Helong Jiang
Summary: Flexible dual-spectral carbon nanodots/flexible n-silicon heterojunction photodetectors with high responsivity and detectivity are reported. These detectors show photo response in UV illumination and only in forward bias under visible illumination. The photocurrent of the device remains high even under bending strain.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
M. S. Sikandar Bathusha, Israr Ud Din, Rehan Umer, Kamran A. Khan
Summary: Graphene-based nanomaterials are used as embedded sensors to monitor fracture behavior in composite structures. This study investigates the in-situ crack propagation and fracture behavior in a glass fiber reinforced polymer composite using embedded reduced graphene oxide coated fabrics and highly conductive graphene nanoplatelet paper.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
