Optics letters最新文献

Virtual atom-photon bound states and spontaneous emission control. 虚原子-光子束缚态与自发发射控制。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-05-01 DOI: 10.1364/OL.561740

Stefano Longhi

引用次数: 0

Silicon 3D-integrated 2 × 2 × 106.25 Gbps parallel multimode transmitter. 硅3d集成2 × 2 × 106.25 Gbps并行多模发射机。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-05-01 DOI: 10.1364/OL.557793

Shihuan Ran, Yao Sun, Ting Miao, Bohan Chu, Yu Li, Jianping Chen, Linjie Zhou

引用次数: 0

Toroidal dipole resonances enable giant vortical dichroism in folded metamaterials. 环向偶极共振使折叠的超材料具有巨大的涡旋二色性。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-05-01 DOI: 10.1364/OL.560670

Kangzhun Peng, Shiqi Luo, Zhi-Yuan Li, Wenyao Liang

{"title":"Toroidal dipole resonances enable giant vortical dichroism in folded metamaterials.","authors":"Kangzhun Peng, Shiqi Luo, Zhi-Yuan Li, Wenyao Liang","doi":"10.1364/OL.560670","DOIUrl":"https://doi.org/10.1364/OL.560670","url":null,"abstract":"Chiral optical effects have significant applications in material science and nanophotonics, particularly in chiral material detection and optical sensing. The toroidal dipole resonance, as a unique electromagnetic multipolar mode, has attracted considerable attention for its distinctive response characteristics in optical research. In this work, we propose a folded metamaterial and investigate the interaction between photonic orbital angular momentum and the toroidal dipole resonances in the designed chiral metamaterials. By varying the folded angle of the metamaterial, we analyze the variations in vortical dichroism response and find that the folded angle significantly affects the intensity and contrast of the vortical dichroism effect. By using electromagnetic multipole resonances theory, we verify that the vortical dichroism enhancement is mainly driven by toroidal dipole resonance intensity and confirm chiral toroidal dipole resonances in the orbital angular momentum dimension. This study provides what we believe to be a new pathway for flexible orbital angular momentum manipulation and the development of chiral toroidal dipole optical devices, especially in optical communications and optical holography applications.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 9","pages":"3102-3105"},"PeriodicalIF":3.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143991735","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

Full characterization of partially coherent vector vortex beams via generalized Stokes parameters. 通过广义Stokes参数的部分相干矢量涡旋光束的完整表征。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-05-01 DOI: 10.1364/OL.562872

Manisha, Stuti Joshi, Saba N Khan, Bhaskar Kanseri, P Senthilkumaran

引用次数: 0

Latent space-based modeling for spectral prediction in generative photonics design. 生成光子设计中基于潜在空间的光谱预测建模。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-05-01 DOI: 10.1364/OL.558056

Arno De Haseleer, Ali Al-Zawqari, Domenico Spina, Francesco Ferranti

引用次数: 0

Breaking the resolution-distance trade-off: 50-cm spatial resolution over 14 km using correlation demodulation in Raman distributed fiber sensors. 打破分辨率-距离权衡：在拉曼分布式光纤传感器中使用相关解调，超过14公里的50厘米空间分辨率。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-05-01 DOI: 10.1364/OL.560755

Xinyue Zhang, Jian Li, Bowen Fan, Zijia Cheng, Xin Huang, Xiaohui Xue, Mingjiang Zhang

引用次数: 0

Triple-pulsed single-frequency laser at 1645 nm and 822 nm simultaneously for CH₄ and H₂O differential absorption lidar. 用于CH4和H2O差分吸收激光雷达的1645 nm和822 nm三脉冲单频激光。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-05-01 DOI: 10.1364/OL.559024

Zitong Wu, Likun Wang, Shiguang Li, Hongshun Ye, Xiuhua Ma, Xiaopeng Zhu, Jiqiao Liu, Weibiao Chen

{"title":"Triple-pulsed single-frequency laser at 1645 nm and 822 nm simultaneously for CH4 and H2O differential absorption lidar.","authors":"Zitong Wu, Likun Wang, Shiguang Li, Hongshun Ye, Xiuhua Ma, Xiaopeng Zhu, Jiqiao Liu, Weibiao Chen","doi":"10.1364/OL.559024","DOIUrl":"https://doi.org/10.1364/OL.559024","url":null,"abstract":"We proposed a novel, to the best of our knowledge, triple-pulse dual-wavelength 1645 nm and 822 nm laser for differential absorption lidar (DIAL) to measure methane and water vapor simultaneously. The laser is developed with a 1064 nm triple-pulse high-energy fiber-slab hybrid laser amplifier as the pump source. Seeder-injected optical parametric oscillator (OPO) is designed to generate narrow linewidth and single-frequency 1645 nm pulses, while optical parametric amplification (OPA) and second-harmonic generation (SHG) are utilized to amplify the signal pulses and generate 822 nm pulses. Operating at a repetition rate of 25 Hz with a three-pulse interval of 200 μs, a single pulse energy of 98.6 mJ at 1064 nm pump wavelength is achieved, resulting in 18.8 mJ at 1645 nm after OPA. After the SHG, a pulse energy of 7.5 mJ at 822 nm is generated with an efficiency of 39.98%. Both the 1645 nm and 822 nm pulses obtain low-frequency fluctuation and good beam quality. The frequency stabilities are 9.07 MHz and 4.89 MHz, and the beam qualities are less than 2.2 and 3.9, respectively.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 9","pages":"3086-3089"},"PeriodicalIF":3.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144024201","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

Phase-change-based polarization-selective switching for multilevel emittance modulation. 基于相位的多电平发射度调制偏振选择开关。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-05-01 DOI: 10.1364/OL.559589

Yinzhong Wang, Bowei Xie, Jiayue Yang, Linhua Liu

{"title":"Phase-change-based polarization-selective switching for multilevel emittance modulation.","authors":"Yinzhong Wang, Bowei Xie, Jiayue Yang, Linhua Liu","doi":"10.1364/OL.559589","DOIUrl":"https://doi.org/10.1364/OL.559589","url":null,"abstract":"Smart modulation of emittance of a radiator, particularly through multilevel strategies, has garnered substantial interest due to its unparalleled adaptability and versatility. In this Letter, we present a smart multilevel radiator, capable of achieving four distinct levels of emittance modulation in the spectral range of 2.5-30 μm. Such a smart radiator is a relatively straightforward design, integrating In3SbTe2 (IST)-based linear grating on a VO2-based multilayer structure. The enhanced emittance tunability of the smart multilevel radiator is achieved, with total normal emittances of 0.11, 0.27, 0.54, and 0.82 for the four levels, respectively. The underlying mechanisms involve manipulating the Fabry-Perot (FP) resonance through the phase change of VO2 and in-plane anisotropy via the phase change of IST. The multilevel modulation of emittance exhibits remarkable stability and excellence under wide-angle incidence conditions. The development of this multilevel smart radiator has considerable potential for applications in thermal anti-counterfeiting, thermal management, and energy conservation.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 9","pages":"2974-2977"},"PeriodicalIF":3.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064278","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

Twist-engineered phonon polaritons in α - V₂O₅. α - V2O5中扭曲工程声子极化子。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-05-01 DOI: 10.1364/OL.557267

H Shiravi, W Zheng, Y He, S Ran, D A Rhodes, L Balicas, H D Zhou, G X Ni

引用次数: 0

Surpassing the differential synthetic wavelength of dual-wavelength digital holography by optimizing the search for an unwrapping coefficient. 通过优化对展开系数的搜索，超越双波长数字全息的差分合成波长。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-05-01 DOI: 10.1364/OL.557683

Mingguang Shan, Yuanyuan Jia, Zhenhua Ding, Zhi Zhong, Lei Yu, Bin Liu, Lijing Wang, Lei Liu

{"title":"Surpassing the differential synthetic wavelength of dual-wavelength digital holography by optimizing the search for an unwrapping coefficient.","authors":"Mingguang Shan, Yuanyuan Jia, Zhenhua Ding, Zhi Zhong, Lei Yu, Bin Liu, Lijing Wang, Lei Liu","doi":"10.1364/OL.557683","DOIUrl":"https://doi.org/10.1364/OL.557683","url":null,"abstract":"The measurement range of dual-wavelength digital holography (DWDH) is always limited by differential synthetic wavelength (DSW) with low signal-to-noise ratio (SNR), which limits the application of DWDH. In this paper, we propose a novel, to the best of our knowledge, algorithm to surpass DSW of DWDH by optimizing the search for an unwrapping coefficient. The measured phase of the 1st wavelength can be unwrapped by its unwrapping coefficient and used to induce a wrapped phase of the 2nd wavelength. Owing to the explicit relationship between two measured phase maps of the same sample in DWDH, the induced wrapped phase from the 1st wavelength should be equal to the measured phase of the 2nd wavelength. Therefore, by minimizing the difference between the measured and the induced phase maps of the 2nd wavelength, the unwrapping coefficient of the 1st wavelength can be retrieved, and the unwrapped phase with an extended measurement range can be reconstructed correctly. This approach aims to overcome the limitations of measurement range and low SNR by DSW, to enable high-efficiency and broad-range measurement. This advancement significantly enhances the prospect of the practical application of DWDH. The feasibility and efficiency of this approach would be validated through numerical simulations and practical experiments.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 9","pages":"2990-2993"},"PeriodicalIF":3.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144037269","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