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Chinese Optics Letters最新文献

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Paper-based amorphous Ga2O3 solar-blind photodetector with improved flexibility and stability 纸基非晶态Ga2O3太阳盲光电探测器，具有更好的灵活性和稳定性
2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.101601
Hanchi Xia, Tao Zhang, Yuehui Wang, Yaping Qi, Fan Zhang, Zhenping Wu, Yang Zhang
{"title":"Paper-based amorphous Ga2O3 solar-blind photodetector with improved flexibility and stability","authors":"Hanchi Xia, Tao Zhang, Yuehui Wang, Yaping Qi, Fan Zhang, Zhenping Wu, Yang Zhang","doi":"10.3788/col202321.101601","DOIUrl":"https://doi.org/10.3788/col202321.101601","url":null,"abstract":"Flexible devices provide advantages such as conformability, portability, and low cost. Paper-based electronics offers a number of advantages for many applications. It is lightweight, inexpensive, and biodegradable, making it an ideal choice for disposable electronics. In this work, we propose a novel configuration of photodetectors using paper as flexible substrates and amorphous Ga2O3 as the active materials, respectively. The photoresponse characteristics are investigated systematically. A decent responsivity yield and a specific detectivity of up to 66 mA/W and 3×1012 Jones were obtained at a low operating voltage of 10 V. The experiments also demonstrate that neither the twisting nor bending deformation can bring obvious performance degradation to the device. This work presents a candidate strategy for the application of conventional paper substrates to low-cost flexible solar-blind photodetectors, showing the potential of being integrated with other materials to create interactive flexible circuits.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136207199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Measurement of molecular alignment with deep learning-based M-XFROG technique 基于深度学习的M-XFROG技术的分子定位测量
2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.120021
Wanchen Tao, Siqi Sun, Lixin He, Yanqing He, Jianchang Hu, Yu Deng, Chengqing Xu, Pengfei Lan, Peixiang Lu
{"title":"Measurement of molecular alignment with deep learning-based M-XFROG technique","authors":"Wanchen Tao, Siqi Sun, Lixin He, Yanqing He, Jianchang Hu, Yu Deng, Chengqing Xu, Pengfei Lan, Peixiang Lu","doi":"10.3788/col202321.120021","DOIUrl":"https://doi.org/10.3788/col202321.120021","url":null,"abstract":"We demonstrate a deep-learning neural network (DNN) method for the measurement of molecular alignment by using the molecular-alignment-based cross-correlation polarization-gating frequency resolved optical gating (M-XFROG) technique. Our network has the capacity for direct measurement of molecular alignment from the FROG traces. In a proof-of-principle experiment, we have demonstrated our method in O2 molecules. With our method, the molecular alignment factor ⟨cos2 θ⟩(t) of O2, impulsively excited by a pump pulse, was directly reconstructed. The accuracy and validity of the reconstruction have been verified by comparison with the simulations based on experimental parameters.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136259385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Directly modulated 25 Gbaud/s tunable in-series DFB laser array for WDM systems 用于WDM系统的直接调制25gbaud /s可调串联DFB激光阵列
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.011403
Zhenxing Sun, Yaguang Wang, Rulei Xiao, Leilei Wang, Yangyang Gong, Y. Chiu, Xiangfei Chen
{"title":"Directly modulated 25 Gbaud/s tunable in-series DFB laser array for WDM systems","authors":"Zhenxing Sun, Yaguang Wang, Rulei Xiao, Leilei Wang, Yangyang Gong, Y. Chiu, Xiangfei Chen","doi":"10.3788/col202321.011403","DOIUrl":"https://doi.org/10.3788/col202321.011403","url":null,"abstract":"In this Letter, we proposed and experimentally demonstrated a directly modulated tunable laser based on the multi-wave-length distributed feedback (DFB) laser array. The lasers are placed in series to avoid the usage of an optical combiner and additional power loss. A three-section design is utilized to reduce the interference from other lasers and improve the electro-optic response bandwidth. Besides, the reconstruction-equivalent-chirp technique is used to simplify the grating fabrication and precisely control the grating phase. We realized 12 channels with 100 GHz spacing with high side mode suppression ratios of above 50 dB. The output power of all the channels is above 14 mW. The 3 dB electro-optic bandwidth is above 20 GHz at a bias current of 100 mA for all four lasers. A 25 Gb/s data transmission over a standard single-mode fiber of up to 10 km is demonstrated for all 12 channels, and 50 Gb/s data per wavelength is obtained through the four-level pulse amplitude modulation. The proposed directly modulated tunable in-series DFB laser array shows the potential for a compact and low-cost light source for wavelength division multiplexing (WDM) systems, such as next-generation front-haul networks and passive optical networks.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"289 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74395291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-resolution Mo Kα X-ray monochromatic backlight imaging using a toroidal crystal 利用环形晶体的高分辨率Mo Kα x射线单色背光成像
2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.103401
Haoxuan Si, Lianqiang Shan, Huiyao Du, Li Jiang, Shengzhen Yi, Weimin Zhou, Zhanshan Wang
{"title":"High-resolution Mo Kα X-ray monochromatic backlight imaging using a toroidal crystal","authors":"Haoxuan Si, Lianqiang Shan, Huiyao Du, Li Jiang, Shengzhen Yi, Weimin Zhou, Zhanshan Wang","doi":"10.3788/col202321.103401","DOIUrl":"https://doi.org/10.3788/col202321.103401","url":null,"abstract":"Curved crystal imaging is an important means of plasma diagnosis. Due to the short wavelengths of high-energy X rays and the fixed lattice constant of the spherical crystal, it is difficult to apply the spherical crystal in high-energy X-ray imaging. In this study, we have developed a high-energy, high-resolution X-ray imager based on a toroidal crystal that can effectively correct astigmatism. We prepared a Ge 〈5 1 1〉 toroidal crystal for backlighting Mo Kα1 characteristic lines (∼17.48 keV) and verified its high-resolution imaging ability in high-energy X-ray region, achieving a spatial resolution of 5–10 µm in a field of view larger than 1.0 mm.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135181733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Effect of Ba/Sr ratio on the nonlinear optical properties of Ba1-xSrxTiO3 (x = 0.1–0.9) thin films Ba/Sr比对Ba1-xSrxTiO3 (x = 0.1-0.9)薄膜非线性光学性质的影响
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.041601
Depeng Wang, R. Niu, L. Cui, Weitian Wang
{"title":"Effect of Ba/Sr ratio on the nonlinear optical properties of Ba1-xSrxTiO3 (x = 0.1–0.9) thin films","authors":"Depeng Wang, R. Niu, L. Cui, Weitian Wang","doi":"10.3788/col202321.041601","DOIUrl":"https://doi.org/10.3788/col202321.041601","url":null,"abstract":"","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"25 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73545556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Underwater ghost imaging with pseudo-Bessel-ring modulation pattern 伪贝塞尔环调制模式水下鬼影成像
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.081101
Zhe Sun, Tong Tian, Suk-Sim Oh, Jiang-Shan Wang, G. Cheng, Xuelong Li
{"title":"Underwater ghost imaging with pseudo-Bessel-ring modulation pattern","authors":"Zhe Sun, Tong Tian, Suk-Sim Oh, Jiang-Shan Wang, G. Cheng, Xuelong Li","doi":"10.3788/col202321.081101","DOIUrl":"https://doi.org/10.3788/col202321.081101","url":null,"abstract":"In this study, we propose an underwater ghost-imaging scheme using a modulation pattern combining offset-position pseudo-Bessel-ring (OPBR) and random binary (RB) speckle pattern illumination. We design the experiments based on modulation rules to order the OPBR speckle patterns. We retrieve ghost images by OPBR beam with different modulation speckle sizes. The obtained ghost images have a better contrast-to-noise rate compared to RB beam ghost imaging under the same conditions. We verify the results both in the experiment and simulation. In addition, we also check the image quality at different turbidities. Furthermore, we demonstrate that the OPBR speckle pattern also provides better image quality in other objects. The proposed method promises wide applications in highly scattering media","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"87 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79957840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Tb3+-doped borosilicate glass scintillators for high-resolution X-ray imaging 用于高分辨率x射线成像的掺Tb3+硼硅酸盐玻璃闪烁体
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.071601
Wenjun Huang, Junyu Chen, Yi Li, Yueyue Wu, Lianjie Li, Liping Chen, Hai Guo
{"title":"Tb3+-doped borosilicate glass scintillators for high-resolution X-ray imaging","authors":"Wenjun Huang, Junyu Chen, Yi Li, Yueyue Wu, Lianjie Li, Liping Chen, Hai Guo","doi":"10.3788/col202321.071601","DOIUrl":"https://doi.org/10.3788/col202321.071601","url":null,"abstract":"","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"17 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78942335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Photonic and phononic interface states based on sunflower-type crystals [Invited] 基于向日葵型晶体的光子和声子界面态[特邀]
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.061301
Zixian Guo, Bei Yan, J. Liu
{"title":"Photonic and phononic interface states based on sunflower-type crystals [Invited]","authors":"Zixian Guo, Bei Yan, J. Liu","doi":"10.3788/col202321.061301","DOIUrl":"https://doi.org/10.3788/col202321.061301","url":null,"abstract":"Interface states are widely applied in waveguide devices. However, previous studies failed to achieve photonic and phononic interface states independent of each other in the same crystal structure depending on the behavior of the crystal structure, i.e","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"70 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79569843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Coherent combining of a fiber laser array via cascaded internal phase control technique 利用级联内相位控制技术实现光纤激光器阵列的相干组合
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.081402
Jinhu Long, Jiayi Zhang, Hongxiang Chang, Qi Chang, Yu Deng, Zixin Yang, Jian Wu, R. Su, Yanxin Ma, P. Ma, P. Zhou
{"title":"Coherent combining of a fiber laser array via cascaded internal phase control technique","authors":"Jinhu Long, Jiayi Zhang, Hongxiang Chang, Qi Chang, Yu Deng, Zixin Yang, Jian Wu, R. Su, Yanxin Ma, P. Ma, P. Zhou","doi":"10.3788/col202321.081402","DOIUrl":"https://doi.org/10.3788/col202321.081402","url":null,"abstract":"We experimentally demonstrated a cascaded internal phase control technique. A laser array with 12 channels was divided into three sub-arrays and a stage array, and phases of the sub-arrays and the stage array were locked by four phase controllers based on the stochastic parallel gradient descent (SPGD) algorithm, respectively. In this way, the phases of the whole array were locked, and the visibility of the interference pattern of the whole emitted laser array in the far field was ∼ 93%. In addition, the technique has the advantage of element expanding and can be further used in the high-power coherent beam combination (CBC) system due to its compact spatial structure","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"28 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79313373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Constructing ultra-long focal fields via tightly focused Bessel beams 通过紧密聚焦贝塞尔光束构建超长焦场
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.072601
Zhaojin Guo, Ming Huang, Sheng Liu, Peng Li, B. Wei, Jianlin Zhao
{"title":"Constructing ultra-long focal fields via tightly focused Bessel beams","authors":"Zhaojin Guo, Ming Huang, Sheng Liu, Peng Li, B. Wei, Jianlin Zhao","doi":"10.3788/col202321.072601","DOIUrl":"https://doi.org/10.3788/col202321.072601","url":null,"abstract":",","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"03 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86278727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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