Article
Chemistry, Multidisciplinary
Yingyue Zhang, Zhenzhen Guo, Hanrui Zhu, Wenkui Xing, Peng Tao, Wen Shang, Benwei Fu, Chengyi Song, Yuan Hong, Michael D. Dickey, Tao Deng
Summary: This report presents nanoparticles composed of a liquid gallium core with a reduced graphene oxide (RGO) shell, which exhibit high photothermal and photoacoustic performance for imaging applications. The Ga@RGO nanoparticles show significant enhancement in photoacoustic signals compared to bare gallium nanoparticles and gold nanorods. They not only serve as contrast agents for photoacoustic imaging, but also open up new possibilities for the design of liquid metal-based nanomaterials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Xianyang Li, Jingyuan Huang, Xin Wu, Xianling Piao, Danning Lv, Gude Zhang, Dong June Ahn, Chunzhi Cui
Summary: By simultaneously regulating the spectral overlap and the distance between fluorophores and noble metal nanoparticles, the plasmonic enhanced fluorescence (PEF) is significantly enhanced. Core-shell nanostructures composed of adjustable aspect ratio gold nanorods (GNRs) and varying thickness of SiO2 are prepared to optimize PEF. A conjugated polymer, polydiacetylene (PDA), and a near-infrared (NIR) dye Cy5.5 are selected as fluorophores, and their fluorescent signals are enhanced by 7.26 and 4.41 times, respectively. A multifunctional antibody modified Mab-Cy5.5-GNRs@SiO2 is successfully demonstrated to target, image, and provide photothermal therapy (PTT) effects on SKOV-3 ovarian cancer cells.
PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Yasemin H. Khadim, Uday M. Nayef, Falah A. -H. Mutlak
Summary: This study investigates the impact of laser pulse energy on silver, gold, and silver@gold nanoparticles deposited on porous silicon. X-ray diffraction analysis validates the crystalline development of the nanoparticles, while morphological analysis reveals excellent adhesion between the nanoparticles and the substrate. UV-vis spectra demonstrate a localized surface plasmon resonance band, and photoluminescence emission spectra show excellent quality of the porous silicon structure. Ag@Au nanoparticles exhibit maximum responsivity for photodetector applications.
Article
Chemistry, Multidisciplinary
Felix Stete, Matias Bargheer, Wouter Koopman
Summary: The strong interaction between plasmons and excitons can generate new hybrid polariton states with potential applications. However, the transient behavior of these systems is not fully understood. In this study, we provide conclusive evidence that the interesting nonlinear features observed in the picosecond time scale are due to heat generation inside the particles. We introduce a concise model that can accurately recreate the transient spectra by assuming an initial temperature rise of the electron gas inside the particles.
Article
Chemistry, Multidisciplinary
Haotian Yang, Claron J. Ridge, Kyle Overdeep, C. Michael Lindsay, Xiao Tong, Alexander Orlov
Summary: In this study, the thermal stability of Au-Al2O3 core-shell and Au nanowires was investigated. The nanowires were synthesized using the helium droplets method and deposited on various substrates. The in situ characterization showed that the Au-Al2O3 system had significantly enhanced stability compared to pure Au nanowires, indicating its potential as a durable Au-based nanocatalyst. Moreover, strong metal-support bonding was observed in the Au/Al2O3 system.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Jessi E. S. van der Hoeven, Tian-Song Deng, Wiebke Albrecht, Liselotte A. Olthof, Marijn A. van Huis, Petra E. de Jongh, Alfons van Blaaderen
Summary: By performing metal overgrowth on gold nanorods within a mesoporous silica shell, researchers were able to achieve full control over the shape, shell thickness, and morphology of the resulting bimetallic core-shell nanorods, leading to precisely tunable plasmonic properties for applications such as surface-enhanced Raman spectroscopy.
Article
Chemistry, Analytical
Jia-Sheng Lin, Petar M. Radjenovic, Huaizhou Jin, Jian-Feng Li
Summary: Plasmonic core-shell nanoparticle enhanced spectroscopies are promising tools for qualitatively and quantitatively analyzing surface trace species. Four different working modalities are designed to meet various needs, including in situ surface species detection, catalytic process monitoring, labeled sensing, and dual mode analysis. These newly developed plasmonic spectroscopies show great potential in both fundamental research and practical applications.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Meng-Qi He, Yongjian Ai, Wanting Hu, Xiaomeng Jia, Lei Wu, Mingyu Ding, Qionglin Liang
Summary: By using DNA as an etching agent, it is possible to control the morphology and optical properties of plasmonic nanoparticles, while also introducing fluorescence properties. This strategy allows for precise tuning of localized surface plasmon resonance (LSPR) and fluorescence-composited dual-mode signals.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Jae-Ho Hwang, Soohyun Park, Jiwoong Son, Joon Won Park, Jwa-Min Nam
Summary: The study focuses on designing and synthesizing fluorescence-amplified nanocuboids (FANCs) with highly enhanced and controlled plasmon-enhanced fluorescence (PEF) signals, as well as fluorescent silica shell-coated FANCs (FS-FANCs) for biosensing applications. By modifying DNA labeled Au nanorods and forming ultraflat Ag shells, the authors achieved a significant fluorescence enhancement factor and high sensitivity for miRNA detection.
Article
Chemistry, Multidisciplinary
Yujie Liu, Haijun Zhou, Jinling Wang, Ding Yu, Zhaolei Li, Rui Liu
Summary: Core-shell nanoparticles (Fe3O4@PDA) wrapped with Ag were prepared using a simple and green synthesis method. The obtained nanoparticles showed excellent catalytic activity and selectivity, indicating their potential applications in various fields.
Article
Chemistry, Multidisciplinary
Xuan-Hung Pham, Bomi Seong, Sungje Bock, Eunil Hahm, Kim-Hung Huynh, Yoon-Hee Kim, Wooyeon Kim, Jaehi Kim, Dong-Eun Kim, Bong-Hyun Jun
Summary: The study focused on detecting H2O2 levels using SiO2@Au@Ag alloy nanoparticles by catalyzing the conversion of TMB to oxidized TMB and utilizing SERS technology. The optimal conditions for H2O2 detection included incubating the nanoparticles with TMB and measuring the Raman signal. The research successfully demonstrated a method for accurately detecting H2O2 levels.
Article
Nanoscience & Nanotechnology
Lan Thi Dang, Huy Le Nguyen, Hai Van Pham, Mai Thi Tuyet Nguyen
Summary: In this report, Au@Ag core-shell nanorod structures were developed for contaminants sensing by SERS. The silver shell thickness and plasmon wavelength were tuned by changing coating time and silver precursor amount. These structures showed ultra-sensitive detection ability for Nile blue A dye and Fenobucarb pesticide sensing. The Au@Ag core-shell sample with minimal silver shell thickness exhibited the highest Raman enhancement factor due to optimal enhancement of the electromagnetic field of bimetallic structures. This report demonstrates the potential applicability of combining unique features of two plasmonic metals in SERS-based analysis.
Article
Chemistry, Applied
Yi-Ting Liu, Xue-Feng Luo, Yin-Yu Lee, I-Chia Chen
Summary: Fluorescein silica core/shell nanoparticles, gold@silica@fluorescein were synthesized for the study of metal-enhanced fluorescence. The fluorescence enhancement factor was slightly greater in neutral ethanol solution compared to basic solution, with red-shifted fluorescence spectra observed in GNP@silica@FiTC compared to silica@FiTC and FiTC in solution.
Article
Nanoscience & Nanotechnology
Afsaneh Orouji, Forough Ghasemi, Arafeh Bigdeli, Mohammad Reza Hormozi-Nezhad
Summary: A multicolor sensor array was designed to simultaneously monitor various biogenic amines by altering the surface properties of gold nanostructures for qualitative and quantitative determination of BAs. The method offers rapid and visual detection with successful application in BAs detection in meat and fish samples.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Xuan-Hung Pham, Bomi Seong, Eunil Hahm, Kim-Hung Huynh, Yoon-Hee Kim, Jaehi Kim, Sang Hun Lee, Bong-Hyun Jun
Summary: The study presents a method for glucose detection using SiO2@Au@Ag@4-MPBA, achieving sensitive and selective monitoring of glucose in physiologically relevant concentrations.
Article
Chemistry, Physical
Wei Gao, Zeyu Sun, Qingyan Han, Shanshan Han, Xiaotong Cheng, Yongkai Wang, Xuewen Yan, Jun Dong
Summary: This study successfully enhanced the upconversion luminescence properties of lanthanide-doped micro/nanomaterials by constructing core-shell structures, leading to a significant improvement in the red-to-green emission intensity ratio of Er3+ ions in different single micro/nanorods. This enhancement was mainly achieved through cross-relaxation and energy back-transfer processes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Multidisciplinary
Rui-Qiong Ma, Jian Shi, Lin Liu, Meng Liang, Zuo-Liang Duan, Wei Gao, Jun Dong
Summary: In this study, an N-stage three-waveguide system is proposed to enhance the robustness and fidelity of resonant tunneling passage. Analytic solutions for the tunneling dynamics at the output are derived. It is found that with increasing number of subsystems, the tunneling efficiency can approach 100% in a wide range and resonant tunneling is resistant to variations in the phase mismatch and peak tunneling rate.
Article
Optics
Tuo Li, Ye Tao, Jun Dong, Qian Zhang, Shuai Wang, Yishi Shi
Summary: A concise and powerful method for dual-wavelength digital holography (DWDH) is proposed in this study, which bypasses the phase synthesis process and directly obtains the thickness distribution of the object. The method demonstrated noise resistance and reduced reconstruction error significantly, making it useful for DWDH applications, as verified by numerical simulations and experimental results.
Article
Optics
Jun Dong, Rui Wang, Kangzhe Zhao, Qingyan Han, Jianxia Qi, Wei Gao, Mengtao Sun
Summary: By controlling the voltage and frequency of the alternating current electric field, remarkable SERS activity can be produced on large-area gold nanochain array (AuNCR) substrates in a simple and cost-effective manner. Additionally, transferring single-layer graphene onto AuNCR can enhance the SERS effect with strong plasmon coupling observed between the AuNCR and graphene.
Article
Materials Science, Multidisciplinary
Lipeng Zhu, Yuanyuan Huang, Chuan He, Yue Wu, Yixuan Zhou, Zeyu Fan, Jun Dong, Kai Zhang, Xinlong Xu
Summary: Experimental results demonstrate that anisotropic second-order nonlinear optical effects can be observed at the surface of black phosphorus with inversion symmetry breaking, serving as an alternative terahertz emitter. The oxidation process at the surface can protect the terahertz surface emission from the bulk black phosphorus crystals. The radiation mechanism reveals that second-order nonlinear optical effects can occur at the surface of bulk black phosphorus crystals.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2021)
Article
Optics
Wei Gao, Chenxue Zhang, Qingyan Han, Yanrui Lu, Xuewen Yan, Yongkai Wang, Yi Yang, Jihong Liu, Jun Dong
Summary: This study aimed to enhance the red upconversion emission intensity of Ho3+ in NaYbF4 microdisks through different core-shell structures. The results showed that the red emission intensity can be further improved by constructing various core-shell structures, which could be helpful for expanding the application of display and optoelectronic devices.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Physical
Yongkai Wang, Qianying Wang, Zhiduo Li, Xiang Lan, Wei Gao, Qingyan Han, Jianxia Qi, Jun Dong
Summary: By incorporating monolayer molybdic sulfide (MoS2) into composite dielectric chiral nanostructures (CDCNs) of silicon-vanadium dioxide Z-shaped nanorods, the study successfully enhanced and dynamically adjusted the circular dichroism (CD) signals. The coupling between CDCNs and MoS2 resulted in different absorption enhancements and strong CD effects under different circularly polarized lights, with CD signals actively adjusted through the insulator-metal transition of vanadium dioxide, suitable for chiral molecule identification.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Applied
Wei Gao, Xiaotong Cheng, Yu Xing, Shanshan Han, Binhui Chen, Qingyan Han, Xuewen Yan, Jihong Liu, Lin Liu, Jun Dong
Summary: This study aims to enhance the red upconversion emission intensity of Ho3+ ions in NaLuF4:20%Yb3+/2%Ho3+/12%Ce3+ nanoparticles through building different core-shell structures with different excitation wavelengths. The introduction of Yb3+ and Yb3+/Nd3+ ions successfully obtained significantly enhanced red upconversion emission, with an increase in red emission occurring when Yb3+ and Nd3+ ions in the shell transfer more excitation energy to the Ho3+ ions.
JOURNAL OF RARE EARTHS
(2022)
Article
Nanoscience & Nanotechnology
Jun Dong, Yan Wang, Qianying Wang, Yi Cao, Qingyan Han, Wei Gao, Yongkai Wang, Jianxia Qi, Mengtao Sun
Summary: This study constructed a ring-mounted nanostructured SERS substrate using liquid-liquid two-phase self-assembly and membrane transfer techniques. The substrate allows for independent fine-tuning of the distribution density of nanoparticles (NPs) and dielectric constant. The results demonstrate high SERS activity and supersensitivity of the substrate, showing potential applications in biosensing, medical research, environmental monitoring, and optoelectronics.
Article
Optics
Jun Dong, Kangzhe Zhao, Qianying Wang, Jiaxin Yuan, Qingyan Han, Wei Gao, Yongkai Wang, Jianxia Qi, Mengtao Sun
Summary: Researchers have successfully fabricated Au-Ag alloy nanochains array with enhanced Raman and sensor performance by controlling the assembly morphology of metallic nanomaterials through alternating current electric field. The assembled structure shows excellent SERS activity and can detect samples at extremely low concentrations, demonstrating great potential for a wide range of applications in quantitative trace analysis.
Correction
Optics
Tuo Li, Ye Tao, Jun Dong, Qian Zhang, Shuai Wang, Yishi Shi
Summary: This erratum corrects an unintended labeling error in Figs. 5(h)-5(j), with no influence on the results and conclusions of the original Letter.
Article
Chemistry, Multidisciplinary
Jun Dong, Chengyuan Yang, Haoran Wu, Qianying Wang, Yi Cao, Qingyan Han, Wei Gao, Yongkai Wang, Jianxia Qi, Mengtao Sun
Summary: This paper investigates the influence of different self-assembly methods on the enhancement of molecular Raman signals. The gold species growth method and liquid-liquid self-assembly and evaporation-induced self-assembly methods were used to prepare substrates with different arrangements of silver-coated gold nanocubes (Au@Ag NCs). The optimal arrangement of NCs was determined by comparing the Raman signal detection of probe molecules. The results show that the island membrane Au@Ag NCs array substrate obtained by evaporation-induced self-assembly has strong local electromagnetic fields, enabling it to have great potential in molecular detection, biosensing, and food safety monitoring.
Article
Chemistry, Physical
Wei Gao, Shanshan Han, Boyang Wang, Zeyu Sun, Yanrui Lu, Qingyan Han, Xuewen Yan, Jihong Liu, Jun Dong
Summary: This study successfully enhanced the upconversion luminescence of rare-earth materials by constructing a series of composite structures, and found that the size of Au nanoparticles, the density of the AMF substrate, and the thickness of the SiO2 isolation layer have a significant impact on the upconversion luminescence.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Multidisciplinary
Chengyun Zhang, Jianxia Qi, Yangyang Li, Qingyan Han, Wei Gao, Yongkai Wang, Jun Dong
Summary: This article discusses the importance of exciting the surface plasmon resonance of metal nanostructures in breaking the limit of optical diffraction and achieving significant enhancement of the local electromagnetic field at the nanoscale. It also highlights the role of enhanced electromagnetic fields, hot carriers, and localized thermal effects in spectral enhancement, biomedicine, and catalysis of chemical reactions.
Article
Spectroscopy
Zh. Zheng, Ch. Li, J. Dong, Sh. Zhou
Summary: The well-resolved terahertz absorption spectrum of barbituric acid was investigated using terahertz time-domain spectroscopy, with distinctive spectral features observed in the range of 10-124 cm(-1). Analysis with density functional theory showed excellent agreement between solid-state simulation and experiment results, revealing the involvement of hydrogen bonds in collective vibrations. The study may have practical implications for monitoring molecular reactions in industrial production based on the state of hydrogen bonds.
JOURNAL OF APPLIED SPECTROSCOPY
(2021)
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)
