Article
Engineering, Electrical & Electronic
Partha Saha, Mrinal Sen
Summary: In this study, a two dimensional slotted photonic crystal cavity (2D-SPCC) was designed and optimized for sensing applications. It was incorporated in a silicon cantilever to form a nano-opto-electro-mechanical system (NOEMS) for detecting physical parameters like force, displacement, and strain. The results show a linear relationship between the resonant wavelength and the physical parameters, with high quality factor and sensitivity making it suitable for various industrial applications.
IEEE TRANSACTIONS ON NANOTECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Naim Ben Ali, Haitham Alsaif, Youssef Trabelsi, Muhammad Tajammal Chughtai, Vigneswaran Dhasarathan, Mounir Kanzari
Summary: This paper theoretically studies the concept of a photonic salinity and temperature sensor using a deformed one-dimensional photonic structure. The structure is optimized to achieve maximum sensitivity, with the best salinity sensitivity of 558.82 nm/RFIU and temperature sensitivity of 600 nm/RFIU.
Article
Physics, Multidisciplinary
Ali Samadian Barough, Mina Noori, Amin Abbasiyan
Summary: A slow light-based refractive index sensor was presented in a 2D hexagonal lattice photonic crystal waveguide by inserting four defect holes. By optimizing the channel width and introducing defects of various sizes, the sensor achieved high sensitivity and detection range. High Q-factor and sensitivity were obtained by tailoring defect radii, showcasing the enhancement of light-matter interaction and sensitivity.
Article
Engineering, Electrical & Electronic
A. Alioueche, A. Benmerkhi, M. Bouchemat
Summary: This work proposes a new structure of voltage sensor based on photonic crystals. By improving important parameters such as quality factor and transmission, the sensor structure has been modified. The proposed device offers high light confinement and sensitivity to voltage variation.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Optics
Thi Hong Cam Hoang
Summary: This study investigates the coupling behaviors of silicon-on-insulator slotted photonic crystal cavity and slotted photonic crystal waveguide through numerical and simulation studies. The results demonstrate the importance of strong coupling and the transmission properties of the coupled structure, providing insights for potential applications in integrated circuits, hybrid silicon platforms, and sensing technologies.
Article
Telecommunications
K. Asha, Narayan Krishnaswamy, N. K. Suryanarayana
Summary: This work presents an analysis of microcantilever beams and ARROW microcantilever waveguides. By applying varying electric voltage, the microcantilever beams made of silicon nitride material can be deformed, leading to displacement. By integrating MEMS cantilever with ARROW waveguide, a new ARROW microcantilever waveguide is created, which demonstrates high sensitivity and quality factor. The parameters are studied by changing the air gap distance between the cantilever waveguide and output waveguide. The proposed ARROW microcantilever waveguide achieves a maximum FDTD sensitivity of 73.78 nm/RIU.
WIRELESS PERSONAL COMMUNICATIONS
(2022)
Article
Physics, Multidisciplinary
Priyanka Kumari Gupta, Punya Prasanna Paltani, Shrivishal Tripathi
Summary: This paper proposes a novel pressure sensor design using a ring resonator based on a two-dimensional photonic crystal (2DPC). The sensor offers a compact size, a wide dynamic range, and a high sensitivity, making it suitable for applications in high-pressure or stress sensing, medical fields, and long pipeline strain monitoring.
Article
Materials Science, Multidisciplinary
Chandra Sekhar Mishra
Summary: In this study, the electric distribution field of germanium based PC waveguide (L-shaped defect) was calculated and analyzed. The effects of varying the radius of circular photonic structure on the input power and output power were studied at different pressures. The results obtained from simulations provide insights into the electric field distribution and other relevant parameters.
Article
Engineering, Aerospace
Joseph Brooks, Robert A. Canfield
Summary: Sharp turns or corners within a structure can lead to local failures due to stress concentrations. By creating mathematical models to estimate these concentrations, it is possible to use concentration factors in design optimizations to estimate critical stresses.
Article
Chemistry, Multidisciplinary
Sayed Elshahat, Israa Abood, Mohamed Saleh M. Esmail, Zhengbiao Ouyang, Cuicui Lu
Summary: The study introduces a novel photonic crystal mirror heterostructure with high-quality factor (Q) and strong sensing ability and performance. It shows a defect mode at the interface with high Q-factor and enhancement of light-matter interaction, suitable for optical sensing, filtering, and switching applications. The introduction of an electro-optical polymer layer at the interface can further tune the defect mode for higher spatial pulse compression and electro-optical sensitivity.
Article
Optics
Yaser Mahmoodi, Davood Fathi
Summary: A new all-optical sensor based on a 2D array of multi-walled carbon nanotubes is proposed for refractive index sensing of oil derivatives. By modifying the sensor structure and utilizing the slow light effect to enhance the interaction between light waves and oil derivatives, a high sensitivity wavelength shift is achieved.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Nazmi A. Mohammed, Omar E. Khedr, El-Sayed M. El-Rabaie, Ashraf A. M. Khalaf
Summary: This study presents a biomedical sensor based on a two-dimensional photonic crystal that can accurately diagnose and distinguish between different strains of tuberculosis bacteria. The sensor exhibits high quality factor and sensitivity, and features a simple design that can be fabricated using current technologies.
Article
Chemistry, Physical
Soghra Ghahramani, Jamal Barvestani, Bahar Meshginqalam
Summary: This study demonstrates that plasmonic sensors based on photonic crystal fiber and surface plasmon resonance are capable of detecting a wide range of refractive index values. By optimizing the design, the sensors show high wavelength and amplitude sensitivities, making them promising candidates for physical and chemical sensing applications.
Article
Engineering, Electrical & Electronic
Khedr M. Abohassan, Hassan S. Ashour, Mazen M. Abadla
Summary: A novel compact bio-sensing platform based on a defect photonic crystal waveguide is proposed for cancerous blood detection. The introduction of a defect layer in the structure leads to sharp resonant peaks, with optimized thickness achieving high sensitivity and performance. The structure exhibits potential for detecting and sensing cancerous blood samples with high efficacy.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Chemistry, Analytical
Yang Yang, Yang Xiang, Xubin Qi
Summary: A silicon photonic crystal biosensor is proposed in this paper for the detection of cancer cells by changing the resonant wavelength due to the shift in refractive index. The sensor is fabricated from photonic crystal materials and can detect the presence and concentration changes of biological molecules or chemical substances. It offers high sensitivity and a low detection limit.
Article
Optics
Hang Dong, Zhixin Sun, Jingyi Li, Yahui Li, Wei Zhang, Guangyong Jin
Summary: This paper calculates thermal stresses and adsorption forces to determine laser cleaning conditions and establishes relevant models. Experimental results show that the removal effect is better with increasing nanosecond pulse delay, with the best effect achieved at 600 milliseconds pulse delay. Based on the findings, the mechanisms of oxide film removal involve thermal stress against adsorption and plasma shock wave breaking the oxide layer.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Junjie Zhang, Wenjun Li, Bingtao Li, Zheng-Da Hu, Jicheng Wang, Feng Zhang, Lei Wang
Summary: A multilayer thin film device structure based on Tamm plasmons is proposed for high-performance near-infrared hot electron photodetectors. By optimizing the device structure parameters, high responsivity detection can be achieved.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Hong Huang, Zhiguang Han
Summary: This paper proposes a new ghost imaging reconstruction method using ordered orthogonal Hadamard derived speckle as the illumination speckle series, and introduces the alternating direction multiplier method to improve the imaging performance. The evaluation results show that the method can achieve high-quality reconstructed images under low sampling conditions.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Moritsugu Sakamoto, Yuki Ono, Kohei Noda, Tomoyuki Sasaki, Nobuhiro Kawatsuki, Masayuki Tanaka, Hiroshi Ono
Summary: The effect of wavelength and polarization of illuminating light in polarization imaging for birefringent objects placed behind a scattering structure was experimentally investigated. The result shows that the spatial distribution of the birefringent object was more clearly visualized in the longer wavelength combined with circularly polarized light illumination. This finding indicates the potential of using polarization imaging with circularly polarized light illumination in the near-infrared range for visualizing birefringent objects with scattering.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Peihui Du, Hongfang Wang, Pengwei Li, Rukeyemuhan Abadula, Hmbat Batelbek, Min Gao
Summary: In this study, we theoretically demonstrate the strong coupling between Tamm plasmons and exciton polaritons in metal Al/DBR-molecular structures, extending the operating wavelength to the deep ultraviolet region. The coupling strength can be effectively manipulated by adjusting the structure parameters, offering potential benefits for the development of new-style optical filters.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Priyanka Chaudhary, Akhilesh Kumar Mishra
Summary: We design and numerically investigate the switching dynamics between two outer waveguides in a parity-time (PT)-symmetric adiabatically coupled three waveguides nonlinear directional coupler (NLDC) system. The study shows that the device can provide switching even when the middle waveguide is nonlinear and the outer waveguides are linear. Furthermore, the effect of loss to gain ratio on critical switching power and the impact of launched light power and gain (loss) value on transmitted power are also studied.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Wei Feng, Yongcong Yi, Shuyang Li, Zhi Xiong, Boya Xie, Zhen Zeng
Summary: Traditional imaging techniques are ineffective in achieving clear underwater imaging due to the presence of scattering media. Single-pixel imaging (SPI) system based on Unet++ offers a solution for reconstructing high-quality images in highly turbid water environments.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Xiaorui Qu, Jufeng Zhao, Haijun Tian, Junjie Zhu, Guangmang Cui
Summary: This paper studies the structural similarity between RGB and spectral images and proposes a non-iterative Images Structure Similarity (ISS) method for fast reconstruction of spectral images. Additionally, the input of the Deep Image Prior (DIP) method is optimized for the first time by using the initial spectral data reconstructed by ISS, leading to an improved starting value for the iteration. The experimental results show that the proposed method can enhance the reconstruction quality in both spectral and spatial resolutions, while significantly reducing the reconstruction time compared to other DIP-based methods.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Donghe Sheng, Zhe Han, Zanyang Qiao, Tianpei Dong, Chenxi Wang, Huiping Tian
Summary: In this study, a distributed multi-parameter sensor based on an etched few-mode multi-core fiber is proposed, allowing simultaneous sensing of temperature, strain, and sample refractive index. By combining space division multiplexing and stimulated Brillouin scattering, the sensor achieves high sensitivity in detecting these parameters.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Dehao Chen, Zhenwu Mo, Zehong Liang, Junjie Jiang, Huilin Tang, Yidan Sun, Ziyu Wang, Quanfeng Wei, Yanru Chen, Dongmei Deng
Summary: In this study, a novel family of elliptical Airyprime vortex beams (EAPVBs) is introduced, which inherits the excellent self-focusing properties of the circular Airyprime vortex beam (CAPVB). The asymmetric focusing of EAPVB leads to some novel properties, such as the splitting of high-order optical vortex and the formation of two foci. By taking advantage of these properties, EAPVB is constructed as a tunable optical bottle for particle capture.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Xiao Ma, Qiongchan Shao, Jian-Jun He
Summary: In this study, an SHS chip based on Su8 waveguide was designed and fabricated. By physically adjusting the metal electrodes and compensating for transmissivity fluctuations, the generation of side ripples was successfully suppressed.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Hongbin Zhang, Jiansen Du, Zongtao Chi, Hailin Cong, Bin Wang
Summary: In this paper, a novel type of dual-wavelength confocal metalens is proposed to solve the spatial crosstalk between two wavelengths. The metalens can greatly reduce the spatial crosstalk and achieve high precision and efficiency in confocal imaging. It can also focus light in specific wavelength ranges, making it suitable for imaging, microscopy, and optical fiber communication.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Rui Qiu, Guanmao Zhang, Shaokai Du, Jie Liu, Hongyu Jib, Kaiyun Bi, Bochuan Xing, Guangchao Diao
Summary: Recent research has developed an achromatic metalens that shows potential for replacing traditional lenses. This study focuses on a continuously variable focus height broadband achromatic metalens for long-wavelength infrared applications. By optimizing materials and parameters, chromatic aberration is effectively corrected, making it suitable for high-resolution LWIR imaging and spectroscopy systems.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Marcos Troncoso-Costas, Gaurav Jain, Yiming Li, Mohammed Patel, Lakshmi Narayanan Venkatasubramani, Sean O'Duill, Frank Smyth, Andrew Ellis, Francisco Diaz-Otero, Colm Browning, Liam Barry
Summary: In this work, a fast-switching tuneable laser capable of wide wavelength coverage, low noise and linewidth levels suitable for high-order modulation formats is demonstrated. The laser is characterized to cover a wavelength range of 35 nm in the C-band with nanosecond switching time. It is used to successfully demonstrate 480 Gbit/s 16QAM transmission over 25 km of single-mode fiber for a wavelength range of 19 nm.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Takeshi Moriyasu, Masahiko Tani, Hideaki Kitahara, Takashi Furuya, Jessica Afalla, Toshiro Kohmoto, Daishiro Koide, Hiroki Sato, Mitsutaka Kumakura
Summary: Optical pump-terahertz probe spectroscopy was used to study the photocarrier dynamics and optical characteristics of semiconductor Si. The results showed that the thickness of Si influenced the transmitted terahertz field amplitude and peak delay time, indicating differences in photocarrier dynamics between different Si materials.
OPTICS COMMUNICATIONS
(2024)