arXiv - PHYS - Optics最新文献_第8页

On-Chip Parametric Synchronization of a Dissipative Kerr Soliton Microcomb 耗散克尔孤子微蜂窝的片上参数同步

arXiv - PHYS - Optics Pub Date : 2024-09-09 DOI: arxiv-2409.05388

Gregory Moille, Pradyoth Shandilya, Miro Erkintalo, Curtis R. Menyuk, Kartik Srinivasan

引用次数: 0

Chip-integrated extended-cavity mode-locked laser in the visible 可见光中的芯片集成扩展腔模式锁定激光器

arXiv - PHYS - Optics Pub Date : 2024-09-09 DOI: arxiv-2409.05756

Lisa V. Winkler, Govert Neijts, Hubertus J. M. Bastiaens, Melissa J. Goodwin, Albert van Rees, Philip P. J. Schrinner, Marcel Hoekman, Ronald Dekker, Adriano R. do Nascimento Jr., Peter J. M. van der Slot, Christian Nölleke, Klaus-J. Boller

{"title":"Chip-integrated extended-cavity mode-locked laser in the visible","authors":"Lisa V. Winkler, Govert Neijts, Hubertus J. M. Bastiaens, Melissa J. Goodwin, Albert van Rees, Philip P. J. Schrinner, Marcel Hoekman, Ronald Dekker, Adriano R. do Nascimento Jr., Peter J. M. van der Slot, Christian Nölleke, Klaus-J. Boller","doi":"arxiv-2409.05756","DOIUrl":"https://doi.org/arxiv-2409.05756","url":null,"abstract":"Mode-locked lasers are of interest for applications such as biological\u0000imaging, non-linear frequency conversion, and single-photon generation. In the\u0000infrared, chip-integrated mode-locked lasers have been demonstrated through\u0000integration of laser diodes with low-loss photonic circuits. However additional\u0000challenges, such as a higher propagation loss and smaller alignment tolerances\u0000have prevented the realization of such lasers in the visible range. Here, we\u0000demonstrate the first chip-integrated mode-locked diode laser in the visible\u0000using an integrated photonic circuit for cavity extension. Based on a gallium\u0000arsenide gain chip and a low-loss silicon nitride feedback circuit, the laser\u0000is passively mode-locked using a saturable absorber implemented by focused ion\u0000beam milling. At a center wavelength of 642 nm, the laser shows an average\u0000output power of 3.4 mW, with a spectral bandwidth of 1.5 nm at a repetition\u0000rate of 7.84 GHz.","PeriodicalId":501214,"journal":{"name":"arXiv - PHYS - Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142183530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-degree-of-freedom hybrid optical skyrmions 多自由度混合光学天幕

arXiv - PHYS - Optics Pub Date : 2024-09-09 DOI: arxiv-2409.05689

Jun Yao, Yijie Shen, Jun Hu, Yuanjie Yang

引用次数: 0

Real-time optical gas sensing with two-dimensional materials 利用二维材料进行实时光学气体传感

arXiv - PHYS - Optics Pub Date : 2024-09-09 DOI: arxiv-2409.05693

Gia Quyet Ngo, Chanaprom Cholsuk, Sebastian Thiele, Ziyang Gan, Antony George, Joerg Pezoldt, Andrey Turchanin, Tobias Vogl, Falk Eilenberger

{"title":"Real-time optical gas sensing with two-dimensional materials","authors":"Gia Quyet Ngo, Chanaprom Cholsuk, Sebastian Thiele, Ziyang Gan, Antony George, Joerg Pezoldt, Andrey Turchanin, Tobias Vogl, Falk Eilenberger","doi":"arxiv-2409.05693","DOIUrl":"https://doi.org/arxiv-2409.05693","url":null,"abstract":"Two-dimensional transition metal dichalcogenides (TMDs) are highly appealing\u0000for gas sensors, lab-on-a-chip devices and bio-sensing applications because of\u0000their strong light-matter interaction and high surface-to-volume ratio. The\u0000ability to grow these van der Waals materials on different substrates and\u0000waveguide geometries opens a horizon toward scalable on-chip photonic\u0000nanodevices. Here, we report on a versatile technique for real time remote\u0000optical gas sensing using two-dimensional TMDs. The adsorption of the gas\u0000molecules on the monolayer surface provides a gateway for gas sensing based on\u0000charge-transfer-induced photoluminescence variation. For gases that are weakly\u0000adsorbed on the surface of monolayer TMDs, purging the monolayers' surface by\u0000an inert gas like N2 can desorb gases from the monolayers at room temperature.\u0000We demonstrate CO, NO and NO2 detection by monitoring photoluminescence from\u0000semiconducting MoS2 monolayers grown on SiO2/Si chips at a level of 10 ppm with\u0000fast response time. Observations are supported by our density functional theory\u0000calculations, which predict a significant interaction between these gases and\u0000MoS2 monolayers. These findings may lead to advances in remote sensing,\u0000surface-sensitive bioanalytics and lab-on-a-chip sensors.","PeriodicalId":501214,"journal":{"name":"arXiv - PHYS - Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142183571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ramsey-Borde Atom Interferometry with a Thermal Strontium Beam for a Compact Optical Clock 利用热锶光束进行拉姆齐-博德原子干涉测量法，制造紧凑型光学时钟

arXiv - PHYS - Optics Pub Date : 2024-09-09 DOI: arxiv-2409.05581

Oliver Fartmann, Martin Jutisz, Amir Mahdian, Vladimir Schkolnik, Ingmari C. Tietje, Conrad Zimmermann, Markus Krutzik

{"title":"Ramsey-Borde Atom Interferometry with a Thermal Strontium Beam for a Compact Optical Clock","authors":"Oliver Fartmann, Martin Jutisz, Amir Mahdian, Vladimir Schkolnik, Ingmari C. Tietje, Conrad Zimmermann, Markus Krutzik","doi":"arxiv-2409.05581","DOIUrl":"https://doi.org/arxiv-2409.05581","url":null,"abstract":"Compact optical atomic clocks have become increasingly important in field\u0000applications and clock networks. Systems based on Ramsey-Borde interferometry\u0000(RBI) with a thermal atomic beam seem promising to fill a technology gap in\u0000optical atomic clocks, as they offer higher stability than optical vapour cell\u0000clocks while being less complex than cold atomic clocks. Here, we demonstrate\u0000RBI with strontium atoms, utilizing the narrow 1S0 -> 3P1 intercombination line\u0000at 689 nm, yielding a 60 kHz broad spectral feature. The obtained Ramsey\u0000fringes for varying laser power are analyzed and compared with a numerical\u0000model. The 1S0 -> 1P1 transition at 461 nm is used for fluorescence detection.\u0000Analyzing the slope of the RBI signal and the fluorescence detection noise\u0000yields an estimated short-term stability of 4x10-14 / sqrt{tau}. We present our\u0000experimental setup in detail, including the atomic beam source,\u0000frequency-modulation spectroscopy to lock the 461 nm laser, laser power\u0000stabilization and the high-finesse cavity pre-stabilization of the 689 nm\u0000laser. Our system serves as a ground testbed for future clock systems in mobile\u0000and space applications.","PeriodicalId":501214,"journal":{"name":"arXiv - PHYS - Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142183572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Room-temperature self-cavity lasing from organic color centers 有机色心的室温自腔发光

arXiv - PHYS - Optics Pub Date : 2024-09-09 DOI: arxiv-2409.05504

Minna Zhang, Hao Wu, Xuri Yao, Jiyang Ma, Mark Oxborrow, Qing Zhao

{"title":"Room-temperature self-cavity lasing from organic color centers","authors":"Minna Zhang, Hao Wu, Xuri Yao, Jiyang Ma, Mark Oxborrow, Qing Zhao","doi":"arxiv-2409.05504","DOIUrl":"https://doi.org/arxiv-2409.05504","url":null,"abstract":"Color centers, which are point defects in crystals, play a crucial role in\u0000altering the optical properties of their host materials, enabling widespread\u0000applications in the field of quantum information processing. While the majority\u0000of the state-of-the-art color centers are inorganic, they come with limitations\u0000such as the challenging material preparations and insufficient amount of\u0000available centers. In contrast, organic color centers have recently gained\u0000attention due to their ease of preparations and tailorable functionalities.\u0000Here, pentacene-doped p-terphenyl (Pc:Ptp), an organic color-center system\u0000normally used for microwave quantum electronics, is demonstrated for the first\u0000time its ability of self-cavity laser emission at room temperature. The laser\u0000emission is characterized by strong polarization and high anisotropy,\u0000attributed to the unique packing of the color-center molecules within the\u0000crystal. The optical coherence is found to be a figure of merit to distinguish\u0000the processes of the amplified spontaneous emission (ASE) and lasing in Pc:Ptp.\u0000This work highlights the potential of Pc:Ptp as a compact and efficient\u0000platform for light-matter interactions , offering significant promise for\u0000enhancing the performance of solid-state quantum devices based on this organic\u0000color-center system.","PeriodicalId":501214,"journal":{"name":"arXiv - PHYS - Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142183553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical Spiking Neurons Enable High-Speed and Energy-Efficient Optical Neural Networks 光尖峰神经元实现了高速、高能效的光神经网络

arXiv - PHYS - Optics Pub Date : 2024-09-09 DOI: arxiv-2409.05726

Bo Xu, Zefeng Huang, Yuetong Fang, Xin Wang, Bojun Cheng, Shaoliang Yu, Zhongrui Wang, Renjing Xu

{"title":"Optical Spiking Neurons Enable High-Speed and Energy-Efficient Optical Neural Networks","authors":"Bo Xu, Zefeng Huang, Yuetong Fang, Xin Wang, Bojun Cheng, Shaoliang Yu, Zhongrui Wang, Renjing Xu","doi":"arxiv-2409.05726","DOIUrl":"https://doi.org/arxiv-2409.05726","url":null,"abstract":"Optical neural networks (ONNs) perform extensive computations using photons\u0000instead of electrons, resulting in passively energy-efficient and low-latency\u0000computing. Among various ONNs, the diffractive optical neural networks (DONNs)\u0000particularly excel in energy efficiency, bandwidth, and parallelism, therefore\u0000attract considerable attention. However, their performance is limited by the\u0000inherent constraints of traditional frame-based sensors, which process and\u0000produce dense and redundant information at low operating frequency. Inspired by\u0000the spiking neurons in human neural system, which utilize a thresholding\u0000mechanism to transmit information sparsely and efficiently, we propose\u0000integrating a threshold-locking method into neuromorphic vision sensors to\u0000generate sparse and binary information, achieving microsecond-level accurate\u0000perception similar to human spiking neurons. By introducing novel Binary Dual\u0000Adaptive Training (BAT) and Optically Parallel Mixture of Experts (OPMoE)\u0000inference methods, the high-speed, spike-based diffractive optical neural\u0000network (S2NN) demonstrates an ultra-fast operating speed of 3649 FPS, which is\u000030 fold faster than that of reported DONNs, delivering a remarkable\u0000computational speed of 417.96 TOPS and a system energy efficiency of 12.6\u0000TOPS/W. Our work demonstrates the potential of incorporating neuromorphic\u0000architecture to facilitate optical neural network applications in real-world\u0000scenarios for both low-level and high-level machine vision tasks.","PeriodicalId":501214,"journal":{"name":"arXiv - PHYS - Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142183552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Origin of nonlinear photocurrents in chiral multifold semimetal CoSi unveiled by terahertz emission spectroscopy 太赫兹发射光谱揭示手性多面半金属 CoSi 中非线性光电流的起源

arXiv - PHYS - Optics Pub Date : 2024-09-09 DOI: arxiv-2409.05424

Yao-Jui Chan, Syed Mohammed Faizanuddin, Raju Kalaivanan, Sankar Raman, Hsin Lin, Uddipta Kar, Akhilesh Kr. Singh, Wei-Li Lee, Ranganayakulu K. Vankayala, Min-Nan Ou, Yu-Chieh Wen

{"title":"Origin of nonlinear photocurrents in chiral multifold semimetal CoSi unveiled by terahertz emission spectroscopy","authors":"Yao-Jui Chan, Syed Mohammed Faizanuddin, Raju Kalaivanan, Sankar Raman, Hsin Lin, Uddipta Kar, Akhilesh Kr. Singh, Wei-Li Lee, Ranganayakulu K. Vankayala, Min-Nan Ou, Yu-Chieh Wen","doi":"arxiv-2409.05424","DOIUrl":"https://doi.org/arxiv-2409.05424","url":null,"abstract":"Spectroscopic identification of distinct nonlinear photocurrents unveils\u0000quantum geometric properties of electron wavefunctions and the momentum-space\u0000topological structures. This is especially interesting, but still puzzling, for\u0000chiral topological semimetals with possibilities of hosting giant quantized\u0000circular photogalvanic effect. Here we report a comprehensive terahertz (THz)\u0000emission spectroscopic analysis of nonlinear photoconductivity of chiral\u0000multifold CoSi at 0.26 ~ 1 eV. We find a large linear shift conductivity (17\u0000{mu}A/V2), and confirm a giant injection conductivity (167 {mu}A/V2) as a\u0000consequence of strongly interfered non-quantized contributions from the\u0000vicinity of multifold nodes with opposite chiralities. The bulk injection\u0000current excited by the pump field with a complex wavevector is shown to carry\u0000both longitudinal and transverse components. Symmetry analyses further unveil\u0000weak nonlocal photon drag effect in addition to the photogalvanic effect. This\u0000work not only highlights chiral transition metal monosilicides for mid-infrared\u0000photovoltaic applications via various nonlinear optical channels, but also\u0000consolidates the THz spectroscopy for quantitative photovoltaic research.","PeriodicalId":501214,"journal":{"name":"arXiv - PHYS - Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142183555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A framework to compute resonances arising from multiple scattering 计算多重散射共振的框架

arXiv - PHYS - Optics Pub Date : 2024-09-09 DOI: arxiv-2409.05563

Jan David Fischbach, Fridtjof Betz, Nigar Asadova, Pietro Tassan, Darius Urbonas, Thilo Stöferle, Rainer F. Mahrt, Sven Burger, Carsten Rockstuhl, Felix Binkowski, Thomas Jebb Sturges

{"title":"A framework to compute resonances arising from multiple scattering","authors":"Jan David Fischbach, Fridtjof Betz, Nigar Asadova, Pietro Tassan, Darius Urbonas, Thilo Stöferle, Rainer F. Mahrt, Sven Burger, Carsten Rockstuhl, Felix Binkowski, Thomas Jebb Sturges","doi":"arxiv-2409.05563","DOIUrl":"https://doi.org/arxiv-2409.05563","url":null,"abstract":"A sample refinement strategy suitable for accurately locating a large number\u0000of poles is introduced. We tie the AAA algorithm into an automatic\u0000differentiation framework to efficiently differentiate multi-scattering\u0000resonance calculations. The resulting resonance solver allows for efficient\u0000gradient-based optimization, demonstrated here by the inverse design of an\u0000integrated exciton-polariton cavity. This contribution serves as an important\u0000step towards efficient resonance calculations in a variety of multi-scattering\u0000scenarios, such as inclusions in stratified media, periodic lattices, and\u0000scatterers with arbitrary shapes. A sample refinement strategy suitable for\u0000accurately locating a large number of poles is introduced. We tie the AAA\u0000algorithm into an automatic differentiation framework to efficiently\u0000differentiate multi-scattering resonance calculations. The resulting resonance\u0000solver allows for efficient gradient-based optimization, demonstrated here by\u0000the inverse design of an integrated exciton-polariton cavity. This contribution\u0000serves as an important step towards efficient resonance calculations in a\u0000variety of multi-scattering scenarios, such as inclusions in stratified media,\u0000periodic lattices, and scatterers with arbitrary shapes.","PeriodicalId":501214,"journal":{"name":"arXiv - PHYS - Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142183573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mesoscopic light transport in nonlinear disordered media 非线性无序介质中的介观光传输

arXiv - PHYS - Optics Pub Date : 2024-09-09 DOI: arxiv-2409.05488

Alfonso Nardi, Andrea Morandi, Romain Pierrat, Arthur Goetschy, Xuanchen Li, Frank Scheffold, Rachel Grange

引用次数: 0