Article
Optics
Yulian Li, Wei Gao, Li Guo, Zihao Chen, Changjian Li, Haiming Zhang, Jiajia Jiao, Bowen An
Summary: A dynamically tunable ultra-broadband terahertz perfect metamaterial absorber based on vanadium oxide (VO2) has been proposed, with absorption bandwidth greater than 90% from 3.03 to 8.13 THz. By changing the conductivity of VO2, the absorption intensity can be dynamically tuned from 1.47% to 100%, showing significantly improved bandwidth and flexibility compared to previous reports.
Article
Materials Science, Multidisciplinary
Lewis K. Piper, H. Johnson Singh, Jonathan R. C. Woods, Kai Sun, Otto L. Muskens, Vasilis Apostolopoulos
Summary: This study demonstrates a mechanically tunable metasurface perfect absorber that allows precise control over perfect absorption conditions by adjusting the length of the microcavity, achieving significant extinction in the terahertz range.
ADVANCED PHOTONICS RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Hengli Feng, Zuoxin Zhang, Jingyu Zhang, Dongchao Fang, Jincheng Wang, Chang Liu, Tong Wu, Guan Wang, Lehui Wang, Lingling Ran, Yang Gao
Summary: This article proposed a dual broadband terahertz bifunction absorber that can be actively tuned to achieve perfect modulation of absorptance and absorption bandwidth. It also has the advantages of being polarization insensitive and maintaining stable absorption at wide angles of oblique incidence.
Article
Optics
Pei-Jung Wu, Wei-Cheng Tsai, Chan-Shan Yang
Summary: In this study, an electrically tunable multi-band terahertz (THz) metamaterial filter based on graphene and multiple-square-loop structures was designed. The structure consists of multiple metal square loops of different sizes, which correspond to different THz frequencies, achieving the expected efficacy of a multi-band wave filter. By sweeping external voltages, the capability of the high-sensitivity THz filter can be modulated from single-band to multi-band filtering by changing graphene's Fermi levels. This hybrid THz wave filter study shows promise for the development of selecting channels in THz and 6G communications.
Article
Materials Science, Multidisciplinary
Jun Zhu, Changsong Wu, Yihong Ren
Summary: The study proposed a metamaterial absorber composed of graphene, and demonstrated that dynamic tuning of the absorption range and absorption bandwidth could be achieved by adjusting the Fermi level of the graphene. This has theoretical and engineering significance in the domains of thermal photo-voltaics, solar cells, and sensors.
RESULTS IN PHYSICS
(2021)
Article
Optics
Guozhang Wu, Xiaofei Jiao, Yuandong Wang, Zeping Zhao, Yibo Wang, Jianguo Liu
Summary: The proposed ultra-wideband metamaterial perfect absorber based on vanadium dioxide shows a high terahertz absorption bandwidth and controllable absorption peak intensity. By optimizing the geometric structure and using interference cancellation and impedance matching theory, the absorber achieves better absorption performance and efficiency. It has wide-angle absorption effects in both TE and TM waves, making it suitable for various applications in modulation, sensing, and imaging technology.
Article
Optics
Kwang-Jin Ri, Jin-Song Kim, Jin-Hak Kim, Chung-Ho Ri
Summary: A tunable triple-broadband terahertz metamaterial absorber using a single VO2 circular ring is proposed in this paper. The absorber achieves an absorptivity exceeding 90% in the three frequency bands of 0.73-3.08 THz, 4.83-7.13 THz, and 8.72-11.12 THz, with absorption bandwidths of 2.35 THz, 2.30 THz, and 2.40 THz, respectively. The absorptivity can be continuously tuned from 20% to over 90% by altering the conductivity of VO2. The physical mechanism of triple-broadband absorption is explained by the electric field distributions at absorption peaks, and the influences of incident and polarization angles on the absorption performance are also investigated.
OPTICS COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Hao Sun, Yu-Sheng Lin
Summary: This article presents a tunable terahertz metamaterial consisting of double connected semicircle-shaped rings and segregated metallic bars. By manipulating the radius of the rings, the resonances can be red-shifted in both TE and TM polarizations. The device shows polarization-dependent characteristics and can be used for single-, dual-, triple-, and quad-resonance switching as well as high-efficiency environmental sensing applications.
Article
Materials Science, Multidisciplinary
Guangsheng Deng, Hualong Hu, Haisheng Mo, Junjie Xu, Zhiping Yin, Hongbo Lu, Minggang Hu, Jian Li, Jun Yang
Summary: This paper presents a tunable metamaterial absorber based on liquid crystal with wideband absorption, showing excellent performance and applicability for electromagnetic shielding and stealth applications.
OPTICAL MATERIALS EXPRESS
(2021)
Article
Engineering, Multidisciplinary
Jun Zhu, Changsong Wu
Summary: Most amino acid detection techniques currently have limitations in equipment operation procedures, detection periods, and accuracy, which do not meet the requirement of high-standard amino acid identification in the food industry. This study proposes a novel detection and identification method based on the different refractive indices of aqueous amino acid solutions. Experimental results show that this method can accurately identify amino acids, providing an important reference for further development of metamaterial sensors.
Article
Materials Science, Multidisciplinary
Jing Tan, Yiyuan Xie, Junxiong Chai, Yichen Ye, Bocheng Liu, Xiao Jiang, Ye Su, Rong Yang, Yan Chen
Summary: In this paper, a novel graphene metamaterial is proposed, which can achieve both a tunable perfect absorber and a multifunctional logic device. The metamaterial consists of a gold substrate, a graphene flake, and a graphene double-strip-array on dielectric layers. The perfect absorption is achieved in the terahertz range based on the coupling between the two graphene layers, and the tunability is realized by varying the Fermi level of graphene. The multifunctional logic device, with OR, XNOR, NAND, and NOT gates, can be implemented in the terahertz domain by monitoring the reflections and comparing them with thresholds. The extinction ratios of the logic functions can be tuned by changing the other Fermi level of graphene. The straightforward structure and multiple functions of this metamaterial make it potentially applicable in terahertz optical communication.
RESULTS IN PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Siyuan Liu, Xiaoxing Yin, Hongxin Zhao
Summary: This work presents a photo-excited terahertz metamaterial absorber (PETMA) that can be switched between single-band and narrow-band absorption. The PETMA consists of three layers, including a metal plate, a dielectric layer, and a top unit attached to the dielectric substrate. By controlling the conductivity of silicon using an optical pump beam, the PETMA can achieve single-band and narrow-band absorption at different frequencies. The simulations demonstrate that the proposed PETMA exhibits stable absorption performance at wider incident angles.
RESULTS IN PHYSICS
(2022)
Article
Optics
Kwang-Jin Ri, Chung-Ho Ri
Summary: We propose a tunable dual-broadband terahertz metamaterial absorber based on a simple design of slotted vanadium dioxide resonator. The absorber achieves high absorptivity above 90% in the frequency ranges of 1.31-4.72 THz and 8.19-11.44 THz, with absorption bandwidths of 3.41 THz and 3.25 THz, respectively. By changing the conductivity of vanadium dioxide, the absorptivity can be continuously tuned from 20% to over 90%. The absorber also exhibits polarization insensitivity and wide incident angle, providing a new design method for tunable broadband THz metamaterial absorbers.
OPTICS COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Amirhossein Norouzi-Razani, Pejman Rezaei
Summary: In this paper, a multi-band metamaterial perfect absorber based on the heterogeneous structure of graphene with Cu and SiO2 substrates is presented and investigated. The absorber achieves high absorption rates at different frequencies and is not sensitive to polarization, making it suitable for various applications.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Fei Liu, Miao He, Zhenghua Dong, Yunji Wang, Bo Ni
Summary: A novel tunable dual-band graphene-based perfect absorber is designed in this paper, which can achieve perfect absorption peaks by adjusting the chemical potential of the monolayer graphene. The influence of structural parameters on the absorption characteristics of the absorber has been studied.
RESULTS IN PHYSICS
(2022)
Article
Engineering, Environmental
Yuan-Yuan Li, Bing-Xin Zhou, Hua-Wei Zhang, Tao Huang, Yi-Meng Wang, Wei-Qing Huang, Wangyu Hu, Anlian Pan, Xiaoxing Fan, Gui-Fang Huang
Summary: Developing porous carbon nitride nanocages with abundant pi-electron densities through a novel self-assembly strategy overcomes challenges of traditional polymerization methods. These nanocages, with modulated structural topology and electron densities, exhibit remarkable photocatalytic hydrogen evolution activity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Physics, Applied
Yi-Fei Yang, Jing-Hui Shi, Hao-Hao Bi, Gui-Fang Huang, De-Liang Yao, Wei-Qing Huang
Summary: This study presents a facile and controllable synthesis strategy to obtain metal-organic frameworks template-derived porous carbon/NiFeP nanosheets for electrocatalytic water splitting. The obtained nanostructure exhibits superior performance in hydrogen evolution reaction and oxygen evolution reaction, and a low voltage alkaline electrolysis cell assembled with these nanosheets achieves high current density and stable operation.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Zi-Han Yang, Jian-Hua Ren, Tao Huang, Wei-Qing Huang, Wang-Yu Hu, Gui-Fang Huang
Summary: The adsorption behavior of typical gas molecules on a 2D chromium phosphorus monolayer was investigated using first-principles calculations. The results showed that the CrP monolayer has a strong adsorption ability towards NOx, making it a potential gas sensor for NOx. The changes in the current-voltage curves indicate that the CrP monolayer is a candidate material for high selectivity and sensitivity NOx sensor.
RESULTS IN PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Kang-Xin Yang, Bing-Xin Zhou, Xiao-Rui Wang, Bo Li, Jing-Hui Shi, Ji-Chun Lian, Gui-Fang Huang, Anlian Pan, Wei-Qing Huang
Summary: This study demonstrates the successful synthesis of various irregular triple-layered hetero-nanotubes using a multidentate ligand chelating-grafting strategy. These nanotubes exhibit superior photocatalytic performance and have potential applications in catalysis and other fields.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Yuan Si, Ji-Chun Lian, Ke Yang, Tao Huang, Wei-Qing Huang, Wang-Yu Hu, Gui-Fang Huang
Summary: Data-driven approach is widely used in various fields. Predicting band alignment type is crucial for 2D vdWHs. However, current data-driven approach based on Anderson's rule has prediction errors, which can be explained by geometric deformation, interlayer orbital coupling, and charge redistribution effects.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2022)
Article
Physics, Condensed Matter
Wen-Xia Yu, Bin Liu, Wei-Qing Huang, Hong Zhou, Sheng-Yi Xie
Summary: This study reveals the phase transformations and electrochemical properties changes during the oxidation process of bismuth selenide. The intermediate phase Bi2OSe2 may have potential applications in photovoltaics.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Chemistry, Multidisciplinary
Bo Li, Zhi Tian, Lei Li, Yu-Han Wang, Yuan Si, Hui Wan, Jinghui Shi, Gui-Fang Huang, Wangyu Hu, Anlian Pan, Wei-Qing Huang
Summary: In this study, directional charge transfer channels were constructed using carbon dots/carbon nitride (CCN) nanotubes and FeOOH/FeCo layered double hydroxide (FFC) nanosheets, which significantly improved the photo-assisted overall water splitting performance. Experimental investigations and DFT calculations demonstrated that the interfacial C-O-Fe bonds between CCN and FFC served as charge transfer channels, facilitating the migration of photoexcited carriers between their surfaces. The in situ oxidized Fe/Co species triggered lattice oxygen activation, leading to the construction of the Fe-Co dual-site as the catalytic center and effectively lowering the energy barrier for water oxidation. As a result, the CCN@FFC electrode exhibited multiple functionalities in photoelectrocatalysis, achieving low overpotentials for photo-assisted hydrogen evolution, oxygen evolution, and overall water splitting.
Article
Chemistry, Physical
Jinghui Shi, Yi-Fei Yang, Yao Li, Hui Wan, Bo Li, Jianhang Nie, Meng -Yuan Xie, Gui-Fang Huang, Wei-Qing Huang
Summary: This study proposes a self-arrested strategy to rapidly grow nanowires in a cavity, constructing a hollow core-shell nanostructure nanoreactor. The structure fully utilizes the cavity, increases specific surface area and active sites, and improves electrical conductivity. Moreover, the nanomaterials exhibit enhanced oxygen evolution reaction activity and excellent durability. This work provides a novel strategy for the synergistic utilization of materials and topological structure in various applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jinghui Shi, Wei Peng, Yi-Fei Yang, Bo Li, Jianhang Nie, Hui Wan, Yao Li, Gui-Fang Huang, Wangyu Hu, Wei-Qing Huang
Summary: A universal synthesis strategy is proposed for the fabrication of binary transition metal phosphides (TMPs) hollow sandwich heterostructures. Through density functional theory (DFT) calculation, the growth process and mechanism of layered double hydroxide (LDH) on Prussian blue analog (PBA) surface are revealed. This unique structure combines the advantages of sandwich, hollow, and vertical heterostructures, achieving a synergistic effect.
Article
Physics, Applied
Wu-Yu Chen, Lei Li, Tao Huang, Zi-Xuan Yang, Tao Zhang, Gui-Fang Huang, Wangyu Hu, Wei-Qing Huang
Summary: This study modifies the S-M equation to predict the Schottky barrier height at van der Waals interfaces of 2D Janus materials, taking into account the effects of intrinsic and interface dipoles. It demonstrates that the S-M rule can be extended to polar interfaces and dipole engineering is an effective strategy to tune the Schottky barrier height at the metal-semiconductor interface.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
Xue-Ying Liu, Haohao Bi, Lei Li, Bo Li, Yu-Han Wang, Jinghui Shi, Jianhang Nie, Gui-Fang Huang, Wangyu Hu, Wei-Qing Huang
Summary: In this study, single-crystalline cobalt carbonate hydroxide hydrate (CCOH) nanowires with high oxygen evolution reaction (OER) activity were prepared using a doping-induced facet transformation strategy. The Cu-doped (020)-faceted CCOH nanowire arrays exhibited outstanding OER performances with a low overpotential of 210mV at 10mA cm(-2) and a Tafel slope of 67mV dec(-1) in alkaline medium, as well as extremely long-term durability over 36 h. The findings demonstrate that doping-induced facet engineering is an effective strategy to design and develop highly active catalysts.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Yu-Han Wang, Lei Li, Jinghui Shi, Meng-Yuan Xie, Jianhang Nie, Gui-Fang Huang, Bo Li, Wangyu Hu, Anlian Pan, Wei-Qing Huang
Summary: This study proposes a method to enhance the OER activity of NiFe-based hydroxides by modulating oxygen defects. The results show that proper oxygen defects can promote the synergy between adsorbate evolution mechanism and single lattice oxygen mechanism, maximizing the use of surface metal and oxygen atoms as active sites and improving electrocatalytic activity.
Article
Materials Science, Multidisciplinary
Yu-Han Wu, Jia-Cheng Luo, Jing Zhang, Zi-Cheng He, Yu Lan, Gui-Fang Huang, Wangyu Hu, Wei-Qing Huang
Summary: This article proposes a novel strategy of functionalization and external electric fields to tune the metal-semiconductor contact nature in MXene-based vdW heterostructures. It reveals the potential of MXenes in future nanoelectronics and optoelectronics.
RESULTS IN PHYSICS
(2023)
Article
Chemistry, Physical
Hui Wan, Shu Li, Xiang-Long Zhang, Lichen Wu, Zhixiao Liu, Guangdong Liu, Caitian Gao, Wei-Qing Huang, Huiqiu Deng, Wangyu Hu, Fei Gao
Summary: This study combines density functional theory calculations with experiments to explore the mitigation behavior of Mg dopant in layered sodium-ion battery cathodes. The study reveals that Mg dopants are pumped into Na layers from TM layers during the void formation caused by Na extraction, forming Mg-enrich regions in the TM layer. This void-pump effect effectively suppresses the phase transition and improves the cycling performance of the battery.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Ji-Chun Lian, Yuan Si, Tao Huang, Wei-Qing Huang, Wangyu Hu, Gui-Fang Huang
Summary: A universal and extremely efficient tree search algorithm is proposed in this study, which can model compositionally complex materials by partially avoiding the combinatorial explosion. The algorithm improves efficiency by leveraging the idea of stopping unnecessary searches.
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)
