Article
Engineering, Multidisciplinary
Ruhul Amin, Rana M. Taha, Baraa Riyadh Altahan, Noor Mohammadd, Kawsar Ahmed, Francis M. Bui, Fahad Ahmed Al-Zahrani, Shobhit K. Patel
Summary: This study introduces a distinctive LiNbO3-based five-ring heptagonal-shaped photonic crystal fiber (PCF) with exceptionally high birefringence (Br) and nonlinear coefficient (NLC). Simulation studies reveal an ultra-high Br and NLC at the operative wavelength of 1.55 µm. The designed PCF with ultra-high Br and NLC features can be fabricated suitably, which is advantageous for potential utilization in polarization-maintaining, nonlinear optics, supercontinuum generation, etc.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Sanat Kumar Pandey, Shivam Singh, J. B. Maurya, R. N. Verma, Yogendra Kumar Prajapati
Summary: A photonic crystal fiber with four circular rings of air holes expanded towards the cladding region is proposed. By changing the distance between the air holes, low dispersion and confinement loss are achieved. Extremely high nonlinearity and birefringence values are obtained by filling the core region with a nonlinear material. By optimizing the structure parameters, ultra-high negative dispersion and low losses are achieved.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Optics
Hanrui Yang, Siyu Sun, Wei Hong, Chunjun Dong, Zeting Han
Summary: This study compared the temperature characteristics of birefringence and loss of photonic crystal fibers with odd-edge and even-edge arrangements of air holes in cladding. The results revealed that fibers with odd-edge cladding air holes have better thermal stability.
Article
Nanoscience & Nanotechnology
Shuyang Xie, Jingmin Zhou, Chen Nie, Piaorong Xu, Yuanyuan Liu, Lin Li, Jun Yi, Exian Liu
Summary: This paper proposes a high nonlinear ZBLAN-based photonic crystal fiber with ultra-high birefringence and flattened dispersion in the short-wavelength infrared region. By arranging elliptical-hole arrays around the fiber core, the x-polarized and y-polarized fundamental modes can be separated. The design exhibits single-mode propagation, short beat length, high nonlinear coefficient, low confinement loss, and flattened dispersion. The study of the structure parameters shows that this fiber has great potential for nonlinear applications in the infrared region.
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
(2022)
Article
Engineering, Electrical & Electronic
K. Srinivasan, G. Radhakrishnan, Noor Mohammadd, Ruhul Amin, Kawsar Ahmed, Francis M. Bui, Sobhy M. Ibrahim, Kasim Abdul Jabar Alsalem
Summary: This paper presents a novel GaAs-filled five-ring circular-coated photonic crystal fiber (PCF) architecture with highly birefringent and nonlinear characteristics. The simulated findings illustrate that for the optimized structural parameters, the developed PCF exhibits ultra-negative dispersion, as well as ultra-high birefringence and nonlinear coefficient, making it suitable for various applications such as biosensing and nonlinear optics.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Optics
Xin Yan, Kun Weng, Tonglei Cheng
Summary: A photonic crystal fiber with chalcogenide glass As2Se3 as the base material is designed, which shows high birefringence and nonlinearity at a specific wavelength due to its unique structure and air hole parameters.
OPTICAL ENGINEERING
(2022)
Article
Optics
Shakhawath Hossain, Salimullah Shah, Mohammad Faisal
Summary: A novel Ge20Sb15Se65 based photonic crystal fiber with ultra-high birefringence and large nonlinearity has been proposed, suitable for mid infrared supercontinuum generation, fiber sensor, and spectroscopy systems. By optimizing the cladding arrangement, high birefringence and large nonlinearity can be achieved, with zero dispersion points at specific wavelengths.
Article
Engineering, Electrical & Electronic
Md Mahamudul Hasan, Lway Faisal Abdulrazak, Bikash Kumar Paul, Fahad Ahmed Al-Zahrani, Kawsar Ahmed
Summary: In this work, a newly developed pentagonal photonic crystal fiber with high nonlinearity and birefringence was introduced. Numerical analysis was conducted to investigate its optical characteristics across a wide wavelength range. The results show that this fiber has excellent potential for applications in all-optical signal processing, sensing, and coherent optical communications.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Wei Wei, Yitong Wang, Hongyang Zhao, Ziming Dong, Liqin Tang, Lei Ding, Yigang Li
Summary: This study proposes a new design of fiber optics with a ring-shaped fiber core and stress-applying parts. By optimizing the structure and materials of the fiber, the design supports multiple polarization modes and has low dispersion and confinement loss. The fiber design shows promise for applications such as mode division multiplexing, improving transmission capacity and spectral efficiency.
IEEE PHOTONICS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Sanat Kumar Pandey, Jitendra Bahadur Maurya, Yogendra Kumar Prajapati
Summary: A circular photonic crystal fiber (PCF) containing GaP-filled rectangular holes in the core region and air hole rings in the cladding region was designed, showing high nonlinearity and negative dispersion as well as low confinement loss. Compared to previous PCF structures, this design exhibited superior performance parameters.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Xiao Lei, Fang Ren, Jinyu Zhang, Jingjing Niu, Yanfei Zhang, Yingjuan Ci, Xiaohui Wang, Jianping Wang
Summary: This paper introduces a novel design of photonic crystal fiber supporting 6 vector modes with ultra-flattened chromatic dispersion. The fiber parameters were investigated to achieve optimized performance, resulting in elliptical defect holes and elliptical holes design. The proposed fiber structure shows promising results with low confinement loss and excellent bending resistance, making it suitable for high-capacity communication systems.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Engineering, Multidisciplinary
Bikash Kumar Paul, Kawsar Ahmed, M. Thillai Rani, K. P. Sai Pradeep, Fahad Ahmed Al-Zahrani
Summary: This study presents a modified square photonic crystal fiber (MS-PCF) architecture with ultra-high negative dispersion, validated using an efficient numerical method with precise simulation of PCFs. Waveguide dispersion engineering is achieved through adjusting the structural parameters of the MS-PCF, showcasing significant suppression of negative dispersion behavior. The high negative dispersion and Kerr nonlinearity offered by the MS-PCF make it a potential candidate as a dispersion compensating fiber in optical communication systems.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Optics
Vigneswaran Dhasarathan, A. Sharafali, Thien Khanh Tran, E. P. Mubashira Banu, M. S. Mani Rajan
Summary: This work proposes a temperature independent chloroform clad-filled photonic crystal fiber for spectroscopic and soliton pulse applications. The properties of the proposed fiber at different temperatures were studied, showing that the output spectra remain stable with temperature variations for specific fiber parameters.
Article
Engineering, Electrical & Electronic
Md Anwar Sadath, Md Muhaiminur Rahman, Mohammad Saiful Islam, Md Sanwar Hossain, Mohammad Faisal
Summary: This study investigates the optical characteristics of porous core photonic crystal fiber with four different core structures, finding that elliptical cores exhibit the highest birefringence for reliable polarization-maintaining applications. Additionally, modal characteristics such as absorption loss, confinement loss, dispersion, power fraction, and effective area are thoroughly studied and compared. The research suggests that suspended elliptical core PCFs can be easily fabricated using existing technology.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Physics, Multidisciplinary
Z. Du, J. He, F. Wei, Y. Li, H. Liu, Y. Lu
Summary: This paper presents a photonic crystal fiber with circular and elliptical air holes, which exhibits high nonlinearity and birefringence. Simulation results show that the fiber has significant birefringence, nonlinear coefficient, and two zero-dispersion wavelengths at a specific wavelength.
INDIAN JOURNAL OF PHYSICS
(2023)
Article
Engineering, Electrical & Electronic
Fang Zhao, Dongrui Xiao, Weihao Lin, Yun Chen, Guoqing Wang, Jie Hu, Shuaiqi Liu, Feihong Yu, Weijie Xu, Xiaolu Yang, Liu Yibin, Li-Yang Shao, Perry Ping Shum, Weizhi Wang
Summary: In this study, a fiber-optic sensor based on a double peanut-shaped structure was developed and demonstrated for refractive index measurement. The experimental results showed that the proposed sensor had higher sensitivity compared to other similar fiber sensors. Additionally, the sensor's compact structure and potential applications in various fields were highlighted.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
Haonan Ding, Dora Juan Juan Hu, Xingtao Yu, Xiaoxian Liu, Yifan Zhu, Guanghui Wang
Summary: This article summarizes the application of Raman spectroscopy in scientific fields and introduces the use of hollow core optical fibers for fast online Raman detection, which improves the detection sensitivity and signal collection efficiency.
Article
Optics
Hao Li, Cunzheng Fan, Zhengxuan Shi, Baoqiang Yan, Junfeng Chen, Zhijun Yan, Deming Liu, Perry Shum, Qizhen Sun
Summary: This study proposes a spatio-temporal joint oversampling-downsampling technique to suppress noise in coherent fiber distributed acoustic sensing systems. By utilizing spatial oversampling and averaging downsampling, noise decreases with increasing downsampling coefficient, ensuring correct quantization of noise frequency. Experimental results show significant improvement in DAS system performance with this technique.
Article
Engineering, Biomedical
Xiaojun Yu, Mingshuai Li, Chenkun Ge, Perry Ping Shum, Jinna Chen, Linbo Liu
Summary: In this study, a generative adversarial network with multi-scale convolution and dilated convolution res-network (MDR-GAN) is proposed to alleviate speckle noise in optical coherence tomography (OCT) imaging. Experimental results demonstrate that MDR-GAN outperforms other denoising methods.
BIOMEDICAL SIGNAL PROCESSING AND CONTROL
(2023)
Article
Optics
Dora Juan Juan Hu, Linbo Liu, Hui Dong, Hailiang Zhang
Summary: In this paper, an optical fiber-based broadband mode coupler for multimode optical coherence tomography (OCT) in the O-band is proposed. The device uses a tapered few-mode fiber (FMF) to achieve efficient mode coupling between the higher-order modes of the FMF and the fundamental mode of a single-mode fiber (SMF). Key design parameters such as the tapering ratio, core separation, coupler length, and coupling ratio in the O-band are thoroughly studied. The proposed fiber device allows for better signal collection and improved penetration depth in deep tissue imaging for multimode OCT.
Article
Optics
Zengsen Yang, Peixuan Zhang, Hailiang Zhang, Hui Dong, Dora Juan Juan Hu, Kuanglu Yu
Summary: Most existing methods for extracting the Brillouin frequency shift (BFS) rely on the line shape of the Brillouin gain spectrum (BGS) curve. However, in certain cases, such as the one described in this paper, there is a cyclic shift in the BGS curve, making it difficult to obtain accurate BFS using traditional methods. To address this issue, we propose a method called the fast Fourier Lorentz curve fitting method for extracting Brillouin optical time domain analyzer (BOTDA) sensing information in the transform domain. Our method performs better, especially when the cyclic start frequency is close to the BGS central frequency or when the full width at half maximum is large. The results demonstrate that our method can accurately obtain BGS parameters in most cases compared to the Lorenz curve fitting method.
Article
Engineering, Electrical & Electronic
Chuang Xu, Gai Zhou, Chao Lu, Alan Pak Tao Lau
Summary: We investigated dual-polarization (DP) discrete eigenvalue transmission and proposed shifting the soliton train in one polarization by half a symbol period relative to that in the other polarization. Simulation results are conducted to illustrate its advantages over conventional schemes. Experiments of net 81 Gb/s dual-polarization discrete eigenvalue transmission over 650 km are also demonstrated with the help of DP multi-symbol linear minimum mean-squared error (DP-MS-LMMSE) filters for eigenvalues and b( ${\lambda }$ )-coefficients.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Xiong Wu, Abdullah S. Karar, Kangping Zhong, Zeynep Nilhan Gurkan, Alan Pak Tao Lau, Chao Lu
Summary: This article presents the first experimental demonstration of a non-iterative electronic dispersion compensation (EDC) solution using a finite impulse response (FIR) filter optimized with the Gerchberg-Saxton (GS) algorithm. The performance of the GS FIR filter is compared to the iterative GS algorithm in 56-Gb/s on-off keying (OOK) transmissions over 80-km single mode fiber (SMF). The influence of pulse shape and modulation format on the measured bit error ratio (BER) is investigated, and it is shown that rectangular RZ achieves the best BER performance with the GS filter.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Yuchen Song, Qirui Fan, Chao Lu, Danshi Wang, Alan Pak Tao Lau
Summary: In this paper, an efficient three-step amplifier configuration algorithm is proposed to improve and maintain the GSNR performance of dynamic C+L-band links using EDFA. This algorithm optimizes the signal power profiles, compensates for SRS, and maximizes the GSNR performance through optimization.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Optics
Baocheng LI, Zhi-Wei Tan, Hailiang Zhang, Perry Ping Shum, Dora Juanjuan Hu, Liang Jie Wong
Summary: In the fiber Bragg grating (FBG) sensor network, the resolution of the reflected spectrum is crucial for sensing accuracy. This study demonstrates that deep learning with U-Net architecture can enhance the signal resolution of the FBG sensor network without hardware modifications. The proposed model achieves a 100-fold enhancement in signal resolution with an average root mean square error (RMSE) below 2.25 pm, enabling existing low-resolution interrogators to function as high-resolution ones.
Article
Optics
Yuhui Liu, Weihao Lin, Fang Zhao, Jie Hu, Jinna Chen, Huanhuan Liu, Perry Ping Shum, Xuming Zhang, Li-Yang Shao
Summary: In this study, a sensitive temperature and salinity sensor based on an optical fiber ring laser (FRL) cavity is proposed and demonstrated. The sensor achieves a salinity sensitivity of 0.173 nm/% and a temperature sensitivity of 0.306 nm/°C. It also has the advantages of simple design, low cost, and easy fabrication.
Article
Engineering, Electrical & Electronic
Hao Guo, Ting Li, Fengping Yan, Guobin Ren, Wei Wang, Xiangdong Wang, Qi Qin, Guifang Wu, Jiao Gao, Baoyuan Wang, Haoyu Tan, Wenhua Ren, Ting Feng
Summary: This article reports the design and characterization of a six-mode erbium-doped fiber amplifier (6M-EDFA) for mode division multiplexing systems. The design utilizes a center-depressed optical fiber and adjustment of parameters to reduce splice loss. Through analysis and optimization, high gain and low differential modal gain are achieved. The performance of the designed amplifier is verified using a MDM transmission system.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Hui Dong, Hailiang Zhang, Dora Juan Juan Hu
Summary: The properties of polarization and the degree of polarization of Rayleigh backscattered light in single-mode fibers when the incident probe is a coherent continuous-wave light are investigated. It is found that the instantaneous degree of polarization of the superposed backscattered light is always 100%, while the instantaneous state of polarization is determined by the birefringence and optical phase distributions in the fiber. The random variation of the instantaneous state of polarization is due to the sensitivity of the optical phase to ambient temperature and vibration. However, it is discovered that the temporally averaged state of polarization has a constant relationship with the incident probe's state of polarization.
Article
Chemistry, Analytical
Yuhui Liu, Weihao Lin, Jie Hu, Fang Zhao, Feihong Yu, Shuaiqi Liu, Jinna Chen, Huanhuan Liu, Perry Ping Shum, Xuming Zhang
Summary: By incorporating the Lyot-Sagnac loop structure, the Vernier effect is utilized to create an ultra-high sensitivity temperature sensor based on a ring laser cavity. By adjusting the welding angle between two polarization-maintaining fibers (PMFs), the sensor is fused into a single Sagnac loop to achieve effective temperature sensitivity amplification. The proposed sensor demonstrates superior performance compared to traditional fiber sensors.
Article
Chemistry, Analytical
Jie Hu, Enlai Song, Yuhui Liu, Qiaochu Yang, Junhui Sun, Jinna Chen, Yue Meng, Yanwei Jia, Zhiguang Yu, Yang Ran, Liyang Shao, Perry Ping Shum
Summary: Detection of trace tumor markers in blood/serum is important for cancer screening and prognosis, and label-free optical fiber-based biosensors show promise for Point-of-Care Testing (POCT). A lasso-shaped fiber laser biosensor was developed for the specific determination of CEACAM5 protein in serum, with high sensitivity and reproducibility. The biosensor demonstrated a LOD of 9.6 ng/mL and potential for clinical use, with mass production capability and applicability in broader biosensing fields.
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)
