Article
Optics
Zhousu Xu, Wenju Feng, Tao Chen, Xiaofeng Liu, Jianrong Qiu
Summary: Borosilicate glasses doped with PbSe quantum dots were prepared by traditional melt-quenching and thermal treatment. The addition of NaF network modifier enhanced the mobility of Pb2+ and Se2-ions, promoting the precipitation of PbSe QDs. The spectral properties showed a red shift with increased temperature or NaF concentration, accompanied by changes in PL intensity and lifetime. Furthermore, the PL intensity of QD-doped glass fibers was significantly enhanced with the addition of NaF.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Vincent Notot, Willem Walravens, Maxime Berthe, Nemanja Peric, Ahmed Addad, Xavier Wallart, Christophe Delerue, Zeger Hens, Bruno Grandidier, Louis Biadala
Summary: The doping in square and epitaxially fused PbSe quantum dot superlattices was explored using low-temperature scanning tunneling microscopy and spectroscopy. The study found that the electronic coupling between quantum dots leads to the release and capture of free holes.
Article
Chemistry, Physical
Pabitra Aryal, HongJoo Kim, Sudipta Saha, Jaeyoung Cho, Amos Vincent Ntarisa, Suchart Kothan, Jakrapong Kaewkhao
Summary: A simple strategy was developed to embed CsPbBr3 QDs in a glass matrix to improve their stability. The technique resulted in QDs stability for at least six months under ambient conditions, providing new insights for fabricating various color tunable lighting optical devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Sisi Liu, Kao Xiong, Kang Wang, Guijie Liang, Ming-Yu Li, Haodong Tang, Xiaokun Yang, Zhen Huang, Linyuan Lian, Manlin Tan, Kai Wang, Liang Gao, Haisheng Song, Daoli Zhang, Jianbo Gao, Xinzheng Lan, Jiang Tang, Jianbing Zhang
Summary: The study developed a hybrid ligand co-passivation strategy to improve the quality of PbSe QD solids, leading to excellent trap-state control and prolonged carrier lifetime. The hybrid ligand treatment achieved high V-OC and high J(SC) simultaneously in IR QD solar cells, resulting in the highest IR-PCE for PbSe QD IR solar cells at present.
Article
Chemistry, Physical
Lixiang Fu, Yingzhu Zi, Xue Bai, Daiwen Xiao, Asif Ali Haider, Jianbei Qiu, Zhiguo Song, Yangke Cun, Zhengwen Yang
Summary: Zero-dimensional perovskite CsPbX3 and Cs4PbBr6 quantum dots, embedded in glass matrix, are considered promising for optoelectronic applications. In this study, a borophosphate glass containing Cs4PbBr6 quantum dots was prepared and their morphological characteristics and luminescence properties were investigated. The results demonstrated that the Cs4PbBr6 quantum dots embedded in glass exhibited green luminescence and maintained high stability, suggesting their potential application in solid-state lighting and display.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Kaihua Wei, Libin Zhang, Hairong Zhu, Jia Hou, Zhousu Xu, Zhonghua Yu
Summary: The experiment demonstrated a PbSe quantum dot-doped mode-locked fiber laser, which achieved stable performance and the ability to change pulse duration by adjusting the controller or increasing power. The maximum laser power reached 42.7 mW, providing a new solution for the wavelength problem in mode-locked lasers doped with rare earth elements.
Article
Materials Science, Multidisciplinary
Guanwei Liang, Yong Tang, Peisen Chen, Jiasheng Li, Yikai Yuan, Shudong Yu, Liang Xu, Zongtao Li
Summary: The study presents an optical diffuser based on polystyrene-fiber rods dispersed in polydimethylsiloxane resin, which shows excellent light-scattering performance and efficient light diffusion in the visible-light region. By filling PFRs in quantum dot films, the photoluminescence intensity is enhanced, showing potential for optical performance improvement in QD-based LEDs.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Alex Abelson, Caroline Qian, Zachary Crawford, Gergely T. . Zimanyi, Matt Law
Summary: This paper presents the study of charge transport in individual PbSe QD epitaxially-fused superlattice (epi-SL) grains using microscale field-effect transistors. The results show that the mobility of these grains is one order of magnitude higher than that of previous QD solids, but the evidence for miniband transport is inconclusive due to device hysteresis at higher temperatures.
Article
Chemistry, Physical
Bastiaan B. Salzmann, Jur de Wit, Chen Li, Daniel Arenas-Esteban, Sara Bals, Andries Meijerink, Daniel Vanmaekelbergh
Summary: This study prepared two-dimensional CdSe-PbSe heterostructures and PbSe NPLs through Pb2+-for-Cd2+ cation exchange and characterized the intermediary NCs with advanced microscopy and spectroscopy techniques. The growth of PbSe domains in CdSe NPLs occurs through the replacement of zinc blende CdSe lattice with rock salt PbSe phase while preserving the anion sublattice. Temperature-dependent emission measurements reveal size-dependent change of band gap energy and the influence of the anisotropic shape.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Jinming Hu, Shengyi Yang, Zhenheng Zhang, Hailong Li, Chandrasekar Perumal Veeramalai, Muhammad Sulaman, Muhammad Imran Saleem, Yi Tang, Yurong Jiang, Libin Tang, Bingsuo Zou
Summary: Flexible and broadband optoelectronic devices based on CsPbBr3/PbSe quantum dot heterostructures have shown high responsivity and stability. These devices maintain high performance even after bending or exposure in ambient air, with significantly shortened response time compared to traditional PbSe QDs-based detectors.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Review
Chemistry, Applied
Joana F. B. Barata, M. Graca P. M. S. Neves, Paula S. S. Lacerda, Pedro Conceicao, Tito Trindade
Summary: Quantum dots (QDs) are important nanomaterials for the development of optical devices, and their non-covalent assembly with phthalocyanines (Pcs) allows for the exploration of new properties and applications. Current research mainly focuses on cadmium-containing QDs and energy transfer processes between the inorganic/organic components.
Article
Chemistry, Multidisciplinary
Mohan Yuan, Huicheng Hu, Ya Wang, Hang Xia, Xingchen Zhang, Binbin Wang, Ziyang He, Mengxuan Yu, Yun Tan, Zhaorong Shi, Kanghua Li, Xuke Yang, Ji Yang, Mingyu Li, Xiao Chen, Liuyong Hu, Xiang Peng, Jungang He, Chao Chen, Xinzheng Lan, Jiang Tang
Summary: This paper reports an efficient strategy for improving the stability of lead selenide colloidal quantum dots (PbSe CQDs) by in situ cation-exchange process. The strategy also enhances the photovoltaic performance of the PbSe CQDs, achieving a new power conversion efficiency (PCE) record. This approach is expected to promote the development of PbSe CQD applications in low-cost and high-performance optoelectronic devices.
Article
Materials Science, Multidisciplinary
O. Mahran, N. El-Nohy, H. Ibrahim
Summary: The study reveals that the noise figure increases with the length and pumping power of the Raman fiber, but decreases with the length and pumping power of the PbSe QD fiber. Different lengths of Raman fibers converge to a value around 3.3 dB as the signal wavelength increases. The QD fiber can significantly reduce the NF of the Raman fiber.
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Mingfa Peng, Yang Liu, Fei Li, Xuekun Hong, Yushen Liu, Zhen Wen, Zeke Liu, Wanli Ma, Xuhui Sun
Summary: The paper introduces efficient NIR photodetectors based on the direct synthesis of PbSe quantum dot inks. By constructing the PbSe QDs/ZnO heterostructure, the photodetectors exhibit high NIR responsivity and detectivity. The in-situ passivation and the avoidance of ligand exchange have successfully improved the performance of the photodetectors.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Sisi Liu, Meng Wang, Xiong Yu, Hao Li, Haifei Lu, Xiaoyan Wen, Ming-Yu Li, Jianbing Zhang
Summary: A hybrid electron transport layer (ETL) consisting of titanium-based nanomaterials and sol-gel zinc oxide (ZnO) is developed to enhance the infrared power conversion efficiency (PCE) of lead selenide (PbSe) quantum dot solar cells.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaoyu Cheng, Elizabeth Hinde, Dylan M. Owen, Stuart B. Lowe, Peter J. Reece, Katharina Gaus, J. Justin Gooding
ADVANCED MATERIALS
(2015)
Article
Optics
Cheng Cheng, Yinhui Xu, Xiaoyu Cheng
OPTICS COMMUNICATIONS
(2015)
Article
Biochemical Research Methods
Xiaoyu Cheng, Benjamin F. P. McVey, Andrew B. Robinson, Guillaume Longatte, Peter B. O'Mara, Vincent T. G. Tan, Pall Thordarson, Richard D. Tilley, Katharina Gaus, John Justin Gooding
JOURNAL OF BIOMEDICAL OPTICS
(2017)
Article
Optics
Cheng Cheng, Jiejie Li, Xiaoyu Cheng
JOURNAL OF LUMINESCENCE
(2017)
Article
Optics
Cheng Cheng, Nengshu Hu, Xiaoyu Cheng
OPTICS COMMUNICATIONS
(2017)
Review
Engineering, Electrical & Electronic
Xiaoyu Cheng, Bin Guan
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER
(2017)
Review
Chemistry, Multidisciplinary
Xiaoyu Cheng, Stuart B. Lowe, Peter J. Reece, J. Justin Gooding
CHEMICAL SOCIETY REVIEWS
(2014)
Article
Engineering, Electrical & Electronic
Cheng Cheng, Fang Yuan, Xiaoyu Cheng
IEEE JOURNAL OF QUANTUM ELECTRONICS
(2014)
Article
Chemistry, Multidisciplinary
Xiaoyu Cheng, Stuart B. Lowe, Simone Ciampi, Astrid Magenau, Katharina Gaus, Peter J. Reece, J. Justin Gooding
Article
Chemistry, Multidisciplinary
B. F. P. McVey, D. Koenig, X. Cheng, P. B. O'Mara, P. Seal, X. Tan, H. A. Tahini, S. C. Smith, J. J. Gooding, R. D. Tilley
Article
Materials Science, Biomaterials
Xin Chen, Xiaoyu Cheng, Alexander H. Soeriyadi, Sharon M. Sagnella, Xun Lu, Jason A. Scott, Stuart B. Lowe, Maria Kavallaris, J. Justin Gooding
BIOMATERIALS SCIENCE
(2014)
Article
Chemistry, Physical
Xiaoyu Cheng, Taryn P. Anthony, Claire A. West, Zhongwei Hu, Vignesh Sundaresan, Aaron J. McLeod, David J. Masiello, Katherine A. Willets
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2019)
Article
Chemistry, Multidisciplinary
Yang Ye, Zhenchao Liu, Wenyao Zhang, Xiaoyu Cheng, Sailing He
ADVANCED MATERIALS INTERFACES
(2019)
Article
Physics, Multidisciplinary
Cheng Cheng, Wang Guo-Dong, Cheng Xiao-Yu
ACTA PHYSICA SINICA
(2017)
Proceedings Paper
Engineering, Biomedical
Xiaoyu Cheng, Benjamin F. P. McVey, Andrew B. Robinson, Guillaume Longatte, Peter B. O'Mara, Vincent T. G. Tan, Pall Thordarson, Richard D. Tilley, Katharina Gaus, J. Justin Gooding
COLLOIDAL NANOPARTICLES FOR BIOMEDICAL APPLICATIONS XII
(2017)
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)
