Article
Chemistry, Multidisciplinary
Xiaoqiang Jiang, Wenhui Fan, Chong Qin, Xu Chen
Summary: A broadband polarization conversion metasurface is proposed for efficient wavefront manipulation in THz wireless communication systems, showing high transmission and polarization conversion rates. Applications like anomalous refraction, focusing metalens, and vortex beam generation demonstrate the vast potential of the metasurface.
Article
Chemistry, Analytical
Jinnan Zhang, Shijie Tao, Xin Yan, Xia Zhang, Jinxuan Guo, Zhiqiang Wen
Summary: A hybrid dual-frequency polarized reconfigurable terahertz antenna utilizing graphene and TOPAS has been developed, allowing for tunable polarization conversion and circular polarization, with great potential in various terahertz applications.
Article
Physics, Multidisciplinary
De-Xian Yan, Qin-Yin Feng, Zi-Wei Yuan, Miao Meng, Xiang-Jun Li, Guo-Hua Qiu, Ji-Ning Li
Summary: Terahertz technology has gained significant attention due to its potential applications in various fields. This study presents a reflective dual-functional terahertz metadevice that combines two different polarization conversions using a switchable metasurface. The metadevice can function as a linear-to-linear polarization converter and a wideband linear-to-circular polarization converter, with high conversion ratios and large bandwidths.
Article
Optics
Yue Wang, Dajian Cui, Yu Wang, Guohui Yang, Chunhui Wang
Summary: In this paper, an all-solid-state and hybrid electrically/thermally tunable multifunctional metasurface array is proposed, based on graphene pattern and vanadium dioxide configuration. It can achieve band-stop filtering, beam steering, and beam splitting functions, showing great potential in the field of multifunctional integrated chips.
Article
Computer Science, Information Systems
Fengan Li, Baiqiang You
Summary: This paper presents a metasurface composed of complementary units that can achieve orthogonal linear and linear-to-circular polarization conversion in multiple frequency bands. The research results demonstrate that polarization conversion can be achieved in both high-conversion frequency bands and frequency bands with axial ratios less than 3 dB.
Article
Engineering, Electrical & Electronic
Manting Wang, Dashuang Liao, Jun Yan Dai, Chi Hou Chan
Summary: This article presents a reconfigurable multifunctional metasurface (RMM) with independent control of orthogonally polarized waves. It demonstrates two functionalities: beam steering and polarization conversion.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Chemistry, Analytical
Ying Tian, Lichang Han, Li Yan, Jiayun Wang, Binzhen Zhang, Zan Jiao
Summary: In this paper, an optically-controlled multifunctional linear polarization conversion metasurface working in the terahertz band is proposed. The metasurface, designed with a multilayer structure and controlled by a photosensitive semiconductor, can achieve broadband reflection and transmission polarization conversion functions. The stability of the metasurface to structural parameters and incident angles is also discussed.
Article
Multidisciplinary Sciences
Jun Li, Yongzhi Cheng, Xiangcheng Li
Summary: A transmission-type metasurface based on the combined geometric and transmission phase is proposed, which can independently manipulate circular polarization and linear polarization waves at the terahertz region. The structure's opening and orientation angles can be adjusted to achieve full phase shifts.
ADVANCED THEORY AND SIMULATIONS
(2022)
Article
Chemistry, Physical
Jun-Jie Zhang, Wei-Xi Xu, Yu-Tong Zhao, Han-Yu Xie, Hao-Ran Zu, Bian Wu
Summary: This work proposes a dual-band transmissive polarization conversion metasurface (PCM) with omnidirectional polarization and low profile. The PCM consists of three metal layers separated by two substrates. The upper layer acts as a receiving antenna while the bottom layer serves as a transmitting antenna. By arranging the antennas in an orthogonal way, cross-polarization conversion can be achieved. The PCM demonstrates a polarization conversion rate (PCR) above 90% over two frequency bands and a PCR as high as 95% at two center operating frequencies, with a thickness of only 0.062?(L) where ?(L) is the free space wavelength at the lowest operating frequency.
Article
Physics, Applied
Juzheng Han, Rushan Chen
Summary: A dual-band asymmetric transmission metasurface for linearly polarized wave was designed, analyzed, and experimentally verified for operation in S- and C-bands. The design improves asymmetric transmission capability and operation bandwidth significantly and demonstrates robust response to oblique incidence up to 50 degrees. The structure provides a low profile, wider operation band, and high asymmetric transmission efficiency compared to recent published results, making it suitable for modern radar and satellite communication systems.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Kai Sun, Jining Li, Jinhai Sun, Liang Ge, Degang Xu, Kai Zhong, Jianquan Yao
Summary: This paper presents a high-performance terahertz back-reflections blocker based on a metal wire grid polarizer and a metasurface quarter-wave plate. By optimizing the metasurface design, the blocking efficiency is improved, and this simple structure with low requirements for the operating environment has broad application prospects.
RESULTS IN PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Hui Li, Hang Xu, Chenglong Zheng, Jingyu Liu, Jie Li, Chunyu Song, Jitao Li, Fan Yang, Wei Shi, Yan Zhang, Yating Zhang, Jianquan Yao
Summary: Polarization conversion devices have been improved for miniaturization and practicality, which enhances the freedom of light-matter interactions. Manipulating arbitrary polarization states at subwavelength scales can greatly simplify meta-optical systems.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yueyang Wu, Shengxiang Huang, Lianwen Deng, Chao Tang, Xiaohui Gao, Shuguang Fang, Lei -Lei Qiu
Summary: This paper proposes a dual-band linear polarization converter based on multi-mode metasurface. The converter can tune the two bands relatively independently by changing the physical parameters of the resonator. Experimental results demonstrate that the proposed linear polarization converter works in the two frequency ranges and achieves a high polarization conversion rate.
RESULTS IN PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
K. B. S. Sri Nagini, D. S. Chandu
Summary: This paper presents an ultrathin and wideband reflective crosspolarization converter. The proposed design achieved a high polarization conversion ratio in the THz frequency range, with excellent angular stability and continuous tunability. It is an excellent candidate for polarization manipulation and control in THz communication systems.
IEEE PHOTONICS JOURNAL
(2022)
Article
Engineering, Multidisciplinary
M. Barkabian, N. Dalvand, H. Zandi, N. Granpayeh
Summary: In this study, a Linear To Circular Polarization Converter (LTC-PC) based on a THz reflective metasurface is proposed. It can convert TE linear polarization incident wave into Left-Handed Circular Polarization (LHCP) and Right-Handed Circular Polarization (RHCP) reflected waves. The polarization converter can be used in optical communication and electronic devices.
Article
Engineering, Mechanical
Xiaoqin Bai, Rongcao Yang, Heping Jia, Juan Bai
Summary: In this paper, we investigate the dynamics and manipulation of finite energy Airy (FEA) beam in fractional system with diffraction modulation and PT-symmetric potential. We analyze the behaviors of both chirp-free and chirped FEA beams under diffraction modulation and discuss the possibility of designing diffraction modulation. We also explore the effects of diffraction modulation and PT-symmetric potential on the beam evolution.
NONLINEAR DYNAMICS
(2023)
Article
Engineering, Electrical & Electronic
Haopeng Fan, Jinping Tian, Rongcao Yang
Summary: In this paper, a plasmonic MIM waveguide with a k-shaped resonant cavity is designed to support three Fano resonances. The physical mechanisms behind the multiple Fano resonances are studied using field distributions and changes in geometric parameters. Refractive index sensing is investigated by varying the refractive index of the dielectric medium in the waveguide's air part, achieving a maximum sensitivity of 1250 nm/RIU and a maximum figure of merit over 4000. The slow-light effect is also analyzed, showing a maximum optical delay of 0.05 ps and a group index of 9.23. These findings provide fundamental references for the design of plasmonic optical waveguide devices and have potential applications in nanoscale refractive index sensing, slow-light effects, photonic device integration, and more.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Optics
Jing Chen, Rongcao Yang, Xiaoqin Bai, Juan Bai, Heping Jia
Summary: In this study, the interference of Gaussian and/or Airy beams is investigated using coupled parity-time symmetric nonlocal nonlinear Schrödinger equation. The equation can be decoupled into two paraxial diffraction equations through a linear transformation. The interference phenomena of Gaussian beam train, two Gaussian and/or Airy beams are analyzed based on the solutions obtained from linear transformation and linear diffraction equation. These results can be useful in designing complex interferometric patterns for applications such as photoetching or optical printing.
Article
Engineering, Electrical & Electronic
Mengting Ma, Xuejun Lian, Jinping Tian, Rongcao Yang
Summary: A novel tunable metamaterial device with functions of broadband absorption and broadband polarization conversion is constructed based on the phase transition properties of vanadium dioxide (VO2). The proposed device operates in the broadband absorption mode when VO2 is in the metallic state, achieving more than 90% absorbance with a relative bandwidth of 76.9% in the frequency range of 1.80 - 4.05 THz. In the insulating state, it operates in the broadband polarization conversion mode, efficiently converting the incident linearly polarized terahertz (THz) wave into its cross-polarized state in the frequency range of 1.68 - 3.79 THz, with a polarization conversion ratio (PCR) above 90% and a relative conversion bandwidth larger than 77.1%. This VO2-based dual-functional metamaterial device has potential applications in various THz areas, such as absorption, polarization conversion, and imaging, due to its acceptable tolerance of incident angles and polarization angles.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Wenjian Gong, Wenmei Zhang, Xinwei Chen, Guorui Han, Liping Han, Jinrong Su, Rongcao Yang
Summary: This article proposes a low-profile energy selective surface (ESS) with an ultra-wide absorption band. It uses a switchable layer and an absorptive layer to operate in transmission or shield mode, achieving stealth and shielding simultaneously. By loading metal patches on the dielectric substrate, the number of transmission zero out of the passband is increased and the shielding and absorption bandwidth are widened. Experimental results show low insertion loss and wide absorption band in the transmission mode, and effective shielding in the shield mode.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Optics
Y. U. X. I. N. Wang, R. O. N. G. C. A. O. Yang, Y. I. J. I. A. Zhao, J. I. N. P. I. N. G. Tian, W. E. N. M. E. Zhang, L. Ding
Summary: In this paper, an intrinsic chiral metamaterial (ICM) is proposed, which consists of two metal self-complementary resonators, a dielectric layer, and an embedded continuous vanadium dioxide (VO2) layer. This material can manipulate circular and linear polarized waves in opposite incident directions through reflection and transmission modes. The ICM achieves broadband and narrowband circular polarization conversions and strong asymmetric transmission effects at specific frequencies. The physical mechanisms of these polarization operations are explained and verified through simulations and circuit models. Furthermore, the influence of structural parameters on performance is investigated. The proposed ICM has significant implications for the development of polarization detectors and frequency selectors.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2023)
Article
Optics
Yanan Pei, Zhichao LI, Qi Liu, Lingxiao Shan, Ying Gu, Rongcao Yang
Summary: In this paper, the research on the influence of an anisotropic plasmon nanostructure on quantum interference is conducted using an L-shaped plasmon nanostructure. It is found that the degree of quantum interference depends on the atomic position and the separation between the atom and the nanostructure. By adjusting the atomic position, tunable peak positions and linewidths of the Mollow triplet can be achieved. The proposed system has potential applications in quantum single photon source and active nanodevices.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2023)
Article
Engineering, Mechanical
Kui Huo, Rongcao Yang, Heping Jia, Yingji He, J. M. Christian
Summary: In this paper, the authors explore the analytical solutions of the inhomogeneous nonautonomous nonlinear Schrodinger equation and introduce a novel self-similar transformation that leads to a rich variety of highly controllable solution families. They demonstrate the controllable behaviors of self-similar solitons, Akhmediev breathers, Ma breathers, and rogue waves in a periodic distribution nonlinear system. Additionally, these self-similar solutions are used as a basis for constructing composite solutions to coherently coupled inhomogeneous nonlinear Schrodinger equations, and the resulting composite waves are investigated in detail. The presented similariton solutions may have significant implications for the control and transmission of nonlinear waves.
NONLINEAR DYNAMICS
(2023)
Article
Optics
Yuxin Wang, Rongcao Yang, Yijia Zhao, Jinping Tian
Summary: In this paper, a tunable wide-angle chiral metamaterial incorporating with vanadium dioxide (VO2) is proposed, which can achieve different operating modes and polarization conversions. The structure can achieve circular polarization conversion at 3.35 THz and 3.07 THz for two different incident directions with PCR percentages of 93.5% and 97.1%, respectively, in reflection mode. In transmission mode, the incident x (y)-polarized waves can be converted to the orthogonal counterparts in the range of 2.24-2.88 THz, with an AT parameter over 0.6. The proposed structure has potential applications in controllable switch, isolation device, communication system, etc.
OPTICS COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Xuejun Lian, Mengting Ma, Jinping Tian, Rongcao Yang, Xiaoting Wu
Summary: Achieving switchable and reconfigurable functions based on a single metasurface using vanadium dioxide (VO2) has become a hot topic among researchers. A THz bifunctional metasurface device (BMD) is designed, utilizing the phase transition properties of VO2, that can provide broadband absorption and cross-polarization conversion. The BMD acts as a broadband metamaterial absorber (MA) in the metallic state of VO2, with absorption greater than 90% in the range of 1.97-4.63 THz, and as a broadband linear polarization converter (PC) in the insulated state of VO2, with a polarization conversion ratio greater than 90% in the range of 1.54-4.18 THz. The proposed BMD shows excellent absorption and polarization conversion characteristics, making it highly valuable in various THz applications with sub-wavelength device scales.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Pengfei Zhang, Wenmei Zhang, Xinwei Chen, Guorui Han, Jinrong Su, Rongcao Yang
Summary: This method proposes a design for low-sidelobe dual-beam antennas based on metasurfaces with independently regulated amplitude/phase. By modeling the antenna, employing phase compensation technology, and controlling the reflection amplitude of the metasurface, the sidelobe level of the antenna is successfully reduced.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)
Article
Optics
Rongcao Yang, Jing Chen, Xiaoqin Bai, Heping Jia, Juan Bai
Summary: In this study, a coupled nonlocal nonlinear Schrodinger equation with self-induced parity-time (PT) symmetric potential is considered, and diverse evolution patterns of amplitude-phase modulated composite waves are investigated. It is found that the coupled nonlocal model can be decoupled into nNLSEs with self-induced PT symmetric potential under certain constraints through a general linear transformation with amplitude and phase modulation. Various composite waves composed of bright and/or dark soliton solutions, rogue waves, bright/dark solitons, and periodic solitons are studied based on the exact solutions of the nNLSEs with self-induced PT potential, and abundant evolution patterns under amplitude-phase modulation are presented. The results only demonstrate the characteristics of limited superposed composite waves. In fact, there exist infinite possible evolution patterns of composite waves due to the arbitrary amplitude-phase modulation in the coupled nonlocal nonlinear system with self-induced PT symmetric potential.
Article
Nanoscience & Nanotechnology
Mengting Ma, Xuejun Lian, Jinping Tian, Rongcao Yang
Summary: A metamaterial device based on the phase transition properties of VO2 is designed in this paper, which can achieve multiple switchable functions. The study has guiding significance in the design of THz metamaterial devices with multiple functions.
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
(2023)
Article
Physics, Multidisciplinary
Shuoshuo Jia, Heping Jia, Rongcao Yang, Kaikai Fan
Summary: In this study, the superimposed wave solutions of the variable coefficient nonlinear Schrodinger equations with negative coherent coupling are derived under a more relaxed constraint condition. The dispersion, nonlinearity, and gain/loss can be freely designed due to the relaxed constraint, and the obtained solutions can describe the nonlinear waves in general inhomogeneous optical fiber systems. By changing the gain/loss, various physical features of superimposed waves can be controlled, such as the amplitudes, widths, distances, and backgrounds of solitons, breathers, and rogue waves. The results presented here are valuable for exploring the dynamics of superimposed waves and controlling nonlinear waves in weakly birefringent fibers.
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)
