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Multi-channel spectral-domain optical coherence tomography using single spectrometer 单光谱仪多通道光谱域光学相干层析成像
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.051102
Yukun Wang, Si Chen, Kan Lin, X. Chen, Zhengyang Xu, Shiliang Lou, Xin Ge, Guangming Ni, Xiaojun Yu, J. Mo, Quanquan Mu, Linbo Liu
{"title":"Multi-channel spectral-domain optical coherence tomography using single spectrometer","authors":"Yukun Wang, Si Chen, Kan Lin, X. Chen, Zhengyang Xu, Shiliang Lou, Xin Ge, Guangming Ni, Xiaojun Yu, J. Mo, Quanquan Mu, Linbo Liu","doi":"10.3788/col202321.051102","DOIUrl":"https://doi.org/10.3788/col202321.051102","url":null,"abstract":"","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"1994 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89068197","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
Widely tunable 2 µm optical vortex from a Tm:YAP laser Tm:YAP激光器可宽调谐的2µm光学涡旋
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.021405
Jingjing Zhou, Changsheng Zheng, Bin Chen, Ning Zhang, Qinggang Gao, Hangqi Yuan, D. Jia, Zhanxin Wang, Shande Liu, Yuping Zhang, Huiyun Zhang, Yongguang Zhao
{"title":"Widely tunable 2 µm optical vortex from a Tm:YAP laser","authors":"Jingjing Zhou, Changsheng Zheng, Bin Chen, Ning Zhang, Qinggang Gao, Hangqi Yuan, D. Jia, Zhanxin Wang, Shande Liu, Yuping Zhang, Huiyun Zhang, Yongguang Zhao","doi":"10.3788/col202321.021405","DOIUrl":"https://doi.org/10.3788/col202321.021405","url":null,"abstract":"In this paper, we report on a wide wavelength tuning optical vortex carrying orbital angular momentum (OAM) of ± ħ , from a thulium-doped yttrium aluminum perovskite (YAP) laser employing a birefringent filter. The OAM is experimentally found to be well maintained during the whole wavelength tuning process. The Laguerre – Gaussian (LG 0, (cid:1) 1 ) mode with a tuning range of 58 nm from 1934.8 to 1993.0 nm and LG 0, − 1 mode with a range of 76 nm from 1920.4 to 1996.6 nm, are, respectively, obtained. This is, to the best of our knowledge, the first experimental implementation of wavelength tuning for a scalar vortex laser in the 2 μ m spectral range, as well as the broadest tuning range ever reported from the vortex laser cavity. Such a vortex laser with robust structure and straightforward wavelength tuning capability will be an ideal light source for potential applications in the field of optical communication with one additional degree of freedom.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"103 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82757207","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
Beam homogenization structure for a laser illuminator design based on diode laser beam combining technology 基于二极管激光束组合技术的激光照明器光束均匀化结构设计
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.031405
Jinliang Han, Jun Zhang, X. Shan, Yawei Zhang, H. Peng, L. Qin, Lijun Wang
{"title":"Beam homogenization structure for a laser illuminator design based on diode laser beam combining technology","authors":"Jinliang Han, Jun Zhang, X. Shan, Yawei Zhang, H. Peng, L. Qin, Lijun Wang","doi":"10.3788/col202321.031405","DOIUrl":"https://doi.org/10.3788/col202321.031405","url":null,"abstract":"With the rapid development of laser technology, laser as the light source of night vision illuminating can realize long-dis-tance and clear imaging, which has been widely used in laser active illuminating field. A high-power diode laser with a wavelength of 808 nm was designed as the laser active illuminating source, and the output power of no less than 100 W was obtained by spatial beam multiplexing, polarization multiplexing, and high efficiency fiber coupling techniques. In view of the beam homogenization of illuminating source, a novel beam homogenization system based on waveguide is proposed in this work. A square spot with a horizontal divergence angle of 40°, a vertical divergence angle of 10°, and an illuminating power ratio of 4:1 was obtained by a collimating lens. Comparing with the traditional circular illuminating beam, the square illuminating beam can match the illuminating angle of CCD camera better, and the energy utilization rate is higher. In addition, by optimizing the structure of waveguide and collimating lens, the illuminating angle can be changed to meet the illuminating requirements under different conditions theoretically.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"13 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83029128","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
Generation of 12th order harmonic mode-locking in a Nd-doped single-mode all-fiber laser operating at 0.9 µm 掺nd单模全光纤激光器12阶谐波锁模的产生，工作波长为0.9µm
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.011405
Bingxin Zhang, Ping Li, Zhaojun Liu, Ming Li, Jing Liu, Haoxu Zhao, Qiongyu Hu, Xiaohan Chen
{"title":"Generation of 12th order harmonic mode-locking in a Nd-doped single-mode all-fiber laser operating at 0.9 µm","authors":"Bingxin Zhang, Ping Li, Zhaojun Liu, Ming Li, Jing Liu, Haoxu Zhao, Qiongyu Hu, Xiaohan Chen","doi":"10.3788/col202321.011405","DOIUrl":"https://doi.org/10.3788/col202321.011405","url":null,"abstract":"Based on the Nd-doped single-mode fiber as the gain medium, an all-fiber 12th harmonic mode-locked (HML) laser operating at the 0.9 μ m waveband was obtained for the first time, to the best of our knowledge. A mandrel with a diameter of 10 mm was employed to introduce bending losses to suppress mode competition at 1.06 μ m, which resulted in a suppression ratio of up to 54 dB. The 1st – 12th order HML pulses with the tunable repetition rate of 494.62 kHz – 5.94 MHz were obtained in the mode-locked laser with a center wavelength of ∼ 904 nm. In addition, the laser has an extremely low threshold pump power of 88 mW. To the best of our knowledge, this is the first time that an HML pulse has been achieved in a 0.9 μ m Nd-doped single-mode all-fiber mode-locked laser with the advantages of low cost, simple structure, and compactness, which could be an ideal light source for two-photon microscopy.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"22 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83116594","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
Photo-reconfigurable and electrically switchable spatial terahertz wave modulator [Invited] 光可重构和电可切换空间太赫兹波调制器[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/col202321.010002
Hongguan Yu, Huacai Wang, Zhixiong Shen, Shina Tao, Shijun Ge, Wei Hu
{"title":"Photo-reconfigurable and electrically switchable spatial terahertz wave modulator [Invited]","authors":"Hongguan Yu, Huacai Wang, Zhixiong Shen, Shina Tao, Shijun Ge, Wei Hu","doi":"10.3788/col202321.010002","DOIUrl":"https://doi.org/10.3788/col202321.010002","url":null,"abstract":"Spatial terahertz wave modulators that can arbitrarily tailor the electromagnetic wavefront are in high demand in nondestructive inspections and high-capacity wireless communications. Here, we propose a liquid crystal integrated metadevice. It modulates the terahertz wave based on the adjustable electromagnetically induced transparency analog when spatially changing the environmental refractive index. The functions of the device can be arbitrarily programmed via photo-reorienting the directors of liquid crystals with a digital micromirror device-based exposing system. The thin liquid crystal layer can be further driven by an electric field, and thus the function can be rapidly switched. Amplitude modulation and the lens effect are demonstrated with modulation depths over 50% at 0.94 THz.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"155 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83191604","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
Smith–Purcell radiation-like photoacoustic phased array Smith-Purcell类辐射光声相控阵
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.041901
Dongyi Shen, Guolin Zhao, Xianfeng Chen, W. Wan
{"title":"Smith–Purcell radiation-like photoacoustic phased array","authors":"Dongyi Shen, Guolin Zhao, Xianfeng Chen, W. Wan","doi":"10.3788/col202321.041901","DOIUrl":"https://doi.org/10.3788/col202321.041901","url":null,"abstract":"","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"14 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81194217","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
Plasmonic nanostructure characterized by deep-neural-network-assisted spectroscopy 用深度神经网络辅助光谱学表征等离子体纳米结构
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.010004
Qiao Dong, Wenqi Wang, Xinyi Cao, Yibo Xiao, Xiaohan Guo, Jingxuan Ma, Lianhui Wang, Li Gao
{"title":"Plasmonic nanostructure characterized by deep-neural-network-assisted spectroscopy","authors":"Qiao Dong, Wenqi Wang, Xinyi Cao, Yibo Xiao, Xiaohan Guo, Jingxuan Ma, Lianhui Wang, Li Gao","doi":"10.3788/col202321.010004","DOIUrl":"https://doi.org/10.3788/col202321.010004","url":null,"abstract":"","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"26 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73750185","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
Sideband-free dispersion-managed Yb-doped mode-locked fiber laser with Gires–Tournois interferometer mirrors 带Gires-Tournois干涉仪反射镜的无边带色散管理掺镱锁模光纤激光器
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.061401
Aoran Feng, Bowen Liu, Dongyu Yan, Genyu Bi, Youjian Song, Minglie Hu
{"title":"Sideband-free dispersion-managed Yb-doped mode-locked fiber laser with Gires–Tournois interferometer mirrors","authors":"Aoran Feng, Bowen Liu, Dongyu Yan, Genyu Bi, Youjian Song, Minglie Hu","doi":"10.3788/col202321.061401","DOIUrl":"https://doi.org/10.3788/col202321.061401","url":null,"abstract":"Aoran Feng (丰傲然), Bowen Liu (刘博文), Dongyu Yan (闫东钰), Genyu Bi (毕根毓), Youjian Song (宋有建), and Minglie Hu (胡明列) 1 Ultrafast Laser Laboratory, Key Laboratory of Opto-electronic Information Technology (Ministry of Education), School of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China 2 Georgia Tech Shenzhen Institute, Tianjin University, Shenzhen 518055, China 3 Optoelectronic Detection and Processing Laboratory, School of Electronic Engineering, Tianjin University of Technology and Education, Tianjin 300222, China","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"82 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74333578","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
Optical emission spectrometric diagnosis of laser-induced plasma and shock front produced at moderate pressure 中压下激光诱导等离子体和激波锋的发射光谱诊断
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.023001
Xin Peng, Min-sun Chen, Hao Liu
{"title":"Optical emission spectrometric diagnosis of laser-induced plasma and shock front produced at moderate pressure","authors":"Xin Peng, Min-sun Chen, Hao Liu","doi":"10.3788/col202321.023001","DOIUrl":"https://doi.org/10.3788/col202321.023001","url":null,"abstract":"We present a non-contact optical investigation of laser-induced plasma at moderate Ar pressure ranging from 1 to 100 Pa. The significant shock front and spatial fractionation among the different charged ions are demonstrated at the pressure of 20 Pa. The collisions between Si IV ions and ambient Ar atoms generate distinct and excited Ar II ions, fresh Si III ions, and electrons at the dense layer. The electron density peaks at the position of the shock front, indicating that the collision that yields electrons is dominant over the recombination process in the region of the shock layer and its immediate vicinity.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"10 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85966442","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
Rydberg electromagnetically induced transparency in 40K ultracold Fermi gases 40K超冷费米气体中Rydberg电磁感应透明
IF 3.5 2区 物理与天体物理
Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.100201
Guoqi Bian, Biao Shan, Lianghui Huang, Jing Zhang
{"title":"Rydberg electromagnetically induced transparency in 40K ultracold Fermi gases","authors":"Guoqi Bian, Biao Shan, Lianghui Huang, Jing Zhang","doi":"10.3788/col202321.100201","DOIUrl":"https://doi.org/10.3788/col202321.100201","url":null,"abstract":"We report the measurement of the electromagnetically induced transparency (EIT) with Rydberg states in ultracold 40 K Fermi gases, which is obtained through a two-photon process with the ladder scheme. Rydberg – EIT lines are obtained by measuring the atomic losses instead of the transmitted probe beam. Based on the laser frequency stabilization locking to the superstable cavity, we study the Rydberg – EIT line shapes for the 37s and 35d states. We experimentally demonstrate the significant change in the Rydberg – EIT spectrum by changing the principal quantum number of the Rydberg state (n = 37 = 52 and l = 0). Moreover, the transparency peak position shift is observed, which may be induced by the interaction of the Rydberg atoms. This work provides a platform to explore many interesting behaviors involving Rydberg states in ultracold Fermi gases.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"30 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79158820","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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