Nanophotonics最新文献_第9页

Plasmon–exciton polaritonic emission lifetime dynamics under strong coupling 强耦合下等离子体-激子极化激子发射寿命动力学

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-06-23 DOI: 10.1515/nanoph-2025-0129

Povilas Jurkšaitis, Justina Anulytė, Evita Spalinskaitė, Ernesta Bužavaitė-Vertelienė, Vytautas Žičkus, Dovydas Banevičius, Karolis Kazlauskas, Zigmas Balevičius

{"title":"Plasmon–exciton polaritonic emission lifetime dynamics under strong coupling","authors":"Povilas Jurkšaitis, Justina Anulytė, Evita Spalinskaitė, Ernesta Bužavaitė-Vertelienė, Vytautas Žičkus, Dovydas Banevičius, Karolis Kazlauskas, Zigmas Balevičius","doi":"10.1515/nanoph-2025-0129","DOIUrl":"https://doi.org/10.1515/nanoph-2025-0129","url":null,"abstract":"In this study, we investigate the contribution of resonant and non-resonant excitation conditions on the polariton decay dynamics of strongly coupled rhodamine 6G (R6G) and surface plasmon polariton (SPP). We showed proof of strong coupling between SPP and R6G exciton from the dispersion relations measured by total internal reflection ellipsometry (TIRE). From these it was determined that the coupling strength reaches g ≈ 200 meV. Further fluorescence methods were employed to demonstrate the emission from the lower polariton branch (LP). The fluorescence lifetime and back focal plane imaging techniques were implemented to study radiative polariton decay, for resonant and non-resonant excitation conditions. Fluorescence decay measurements of plasmonic strong coupling regime showed considerably longer (ps) than expected lifetime values (fs). In our case the measured lifetimes cannot be explained without the influence of additional energy level in emission dynamics, such as incoherent transition from exciton reservoir to lower polaritonic branch. The fundamental understanding of coherent energy exchange dynamics has potential importance for development of quantum optical nanodevices, polaritonic lasers, polariton condensation.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"143 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370452","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

A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency division 用于可编程光分频的可重构多通道片上光子滤波器

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-06-23 DOI: 10.1515/nanoph-2025-0119

Simeng Zhu, Bocheng Yuan, Yizhe Fan, Mohanad Al-Rubaiee, Xiao Sun, Zhibo Li, Ahmet Seckin Hezarfen, Anthony E. Kelly, John H. Marsh, Lianping Hou

{"title":"A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency division","authors":"Simeng Zhu, Bocheng Yuan, Yizhe Fan, Mohanad Al-Rubaiee, Xiao Sun, Zhibo Li, Ahmet Seckin Hezarfen, Anthony E. Kelly, John H. Marsh, Lianping Hou","doi":"10.1515/nanoph-2025-0119","DOIUrl":"https://doi.org/10.1515/nanoph-2025-0119","url":null,"abstract":"Recent advancements have broadened the application of photon filters based on Bragg gratings within optical communication networks and optical input/output interfaces. Traditional gratings, however, suffer from a fixed refractive index modulation distribution once manufactured, constraining their adaptability and flexibility. This study introduces a reconfigurable multi-channel photon filter on a silicon nitride on insulator platform. The filter incorporates an equivalent linearly chirped four-phase-shifted sampled Bragg grating with micro-heaters to enable thermo-optic tuning, facilitating programmable control over transmission spectral features. Experimental outcomes indicate the filter’s capability to seamlessly transition among single, dual, and quad-band configurations, as well as a band-stop mode, with independent tuning of each band. Moreover, optical frequency division multiplexing experiments using a 50 GHz semiconductor mode-locked laser have affirmed the filter’s tunability. In quad-band mode, band separations of 50, 100, and 150 GHz are achievable; in dual and single-band modes, band intervals extend from 150 to 250 GHz, allowing for precise single-wavelength selection. Featuring high tunability, minimal insertion losses, and superior signal side-mode suppression ratio, this filter structure supports the integration of programmable photonic devices into space optical communications, photonic integrated networks, and elastic optical networks.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"51 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370451","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

Characterizing nanoscale spatiotemporal defects of multi-layered MoSe2 in hyper-temporal transient nanoscopy 在超时间瞬态纳米显微镜下表征多层MoSe2的纳米尺度时空缺陷

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-06-23 DOI: 10.1515/nanoph-2025-0163

Hwi Je Woo, Sung-Gyu Lee, Hansung Kim, Suyong Jung, Eun Seong Lee, Junghoon Jahng

{"title":"Characterizing nanoscale spatiotemporal defects of multi-layered MoSe2 in hyper-temporal transient nanoscopy","authors":"Hwi Je Woo, Sung-Gyu Lee, Hansung Kim, Suyong Jung, Eun Seong Lee, Junghoon Jahng","doi":"10.1515/nanoph-2025-0163","DOIUrl":"https://doi.org/10.1515/nanoph-2025-0163","url":null,"abstract":"We directly characterize nanoscale spatiotemporal inhomogeneities of multi-layered molybdenum diselenide (MoSe2) in real space and time – the nanometre–femtosecond scale, attributing to local mechanical structures such as strain and surface/subsurface defects, which are critical in semiconductor and optoelectronic applications. This remarkable precision is achieved through the development of a hyper-temporal transient nanoscopy incorporating a sideband-coupled generalized lock-in amplification technique, allowing for characterization of local spatiotemporal defects at each pixel within a subwavelength mapping region. By utilizing this technique, we characterize the nanoscale strain-induced spatiotemporal defects of multi-layered MoSe2, including nano-bubbles that exhibit a noticeable reduction in exciton-exciton annihilation rates, which may attribute to the suppressed probability of bimolecular interaction of excitons due to the strain-induced band distortion. Moreover, we visualize topographically hidden spatiotemporal defects such as lattice mismatches, which induce mid-gap states that traps charge carriers and thereby slow down recombination process. We propose that this hyper-temporal approach to resolving intricate spatiotemporal inhomogeneities in van der Waals materials provides significant insights into their optoelectronic properties and opens new avenues for innovative material design and characterization.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"188 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370453","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

Micro-mirror aided mid-infrared plasmonic beam combiner monolithically integrated with quantum cascade lasers and detectors 微镜辅助中红外等离子束组合器单片集成量子级联激光器和探测器

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-06-21 DOI: 10.1515/nanoph-2024-0688

Georg Marschick, Mauro David, Xaver Gsodam, Nikola Opačak, Dominik Koukola, Elena Arigliani, Axel Evirgen, Virginie Trinité, Salvatore Pes, Stefania Isceri, Hermann Detz, Werner Schrenk, Aaron M. Andrews, Bernhard Lendl, Benedikt Schwarz, Gottfried Strasser, Borislav Hinkov

{"title":"Micro-mirror aided mid-infrared plasmonic beam combiner monolithically integrated with quantum cascade lasers and detectors","authors":"Georg Marschick, Mauro David, Xaver Gsodam, Nikola Opačak, Dominik Koukola, Elena Arigliani, Axel Evirgen, Virginie Trinité, Salvatore Pes, Stefania Isceri, Hermann Detz, Werner Schrenk, Aaron M. Andrews, Bernhard Lendl, Benedikt Schwarz, Gottfried Strasser, Borislav Hinkov","doi":"10.1515/nanoph-2024-0688","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0688","url":null,"abstract":"The development of novel mid-infrared (MIR) devices and systems is crucial for addressing applications in biomedical analysis, chemical reaction-monitoring, or high-bitrate free-space telecommunication. Combining multiple functional elements on one chip into complex miniaturized photonic integrated circuits (PICs), is the next step in these developments, yet limited by existing material and technology constraints. In this work, we introduce a new concept for realizing fully monolithic MIR-PICs based on low-loss on-chip plasmonic guiding and beam combining. The core of our study demonstrates a monolithic beam combiner by integration of active quantum cascade (QC) devices at ∼8 µm (laser and detector) with tailored passive waveguides based on weakly-coupled Ge/Au plasmonics and on-chip micro-mirror optics. The on-chip gold-coated micro-mirrors enhance the directional control and beam combining capabilities of the plasmon waveguides while minimizing energy dissipation typically associated with tight plasmon confinement. We discuss the MIR-PIC beam combiner design, micro-fabrication, and characterization and compare it to the routing concept of simple plasmonic Ge/Au y-couplers exploiting strong-confinement.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"5 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335027","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

Monolithic integration of one VCSEL on a single mode fiber 一个VCSEL在单模光纤上的单片集成

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-06-21 DOI: 10.1515/nanoph-2025-0047

Federica Piccirillo, Michael Zimmer, Martino Giaquinto, Alberto Micco, Michael Jetter, Peter Michler, Andrea Cusano, Simone Luca Portalupi, Armando Ricciardi

{"title":"Monolithic integration of one VCSEL on a single mode fiber","authors":"Federica Piccirillo, Michael Zimmer, Martino Giaquinto, Alberto Micco, Michael Jetter, Peter Michler, Andrea Cusano, Simone Luca Portalupi, Armando Ricciardi","doi":"10.1515/nanoph-2025-0047","DOIUrl":"https://doi.org/10.1515/nanoph-2025-0047","url":null,"abstract":"The implementation of compact fiber-coupled light sources and devices represents a highly sought through technological goal, in wearable technologies, point-of-care units, telecommunication, and even quantum technology. In particular, a strong reduction of the overall device footprint, still ensuring a compact electrical contacting, would play an important role for electrically driven and electrically controlled devices. Here we show the integration of electrically pumped vertical-cavity surface-emitting lasers on multi-mode and single-mode fibers. The optimized integration technique is enabled by the advanced fiber-to-laser coupling design allowed by a detailed numerical investigation, as well as by an improved technological approach. While for the integration on multimode fibers, an important improvement over state-of-the-art is achieved, the integration on single-mode fiber is here demonstrated for the first time. All experimental results include reproducibility studies to show that the developed technique can be considered for larger scale implementations and are further supported by numerical investigation. This work marks an important step forward in the miniaturization of fiber-based optoelectronics devices which will be highly beneficial for various research and technology developments.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"15 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337574","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

In-situ training in programmable photonic frequency circuits 可编程光子频率电路的现场训练

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-06-21 DOI: 10.1515/nanoph-2025-0125

Philip Rübeling, Oleksandr V. Marchukov, Filipe F. Bellotti, Ulrich B. Hoff, Nikolaj T. Zinner, Michael Kues

{"title":"In-situ training in programmable photonic frequency circuits","authors":"Philip Rübeling, Oleksandr V. Marchukov, Filipe F. Bellotti, Ulrich B. Hoff, Nikolaj T. Zinner, Michael Kues","doi":"10.1515/nanoph-2025-0125","DOIUrl":"https://doi.org/10.1515/nanoph-2025-0125","url":null,"abstract":"Optical artificial neural networks (OANNs) leverage the advantages of photonic technologies including high processing speeds, low energy consumption, and mass production to establish a competitive and scalable platform for machine learning applications. While recent advancements have focused on harnessing spatial or temporal modes of light, the frequency domain attracts a lot of attention, with current implementations including spectral multiplexing, neural networks in nonlinear optical systems and extreme learning machines. Here, we present an experimental realization of a programmable photonic frequency circuit, realized with fiber-optical components, and implement the in-situ training with optical weight control of an OANN operating in the frequency domain. Input data is encoded into phases of frequency comb modes, and programmable phase and amplitude manipulations of the spectral modes enable in-situ training of the OANN, without employing a digital model of the device. The trained OANN achieves multiclass classification accuracies exceeding 90 %, comparable to conventional machine learning approaches. This proof-of-concept demonstrates the feasibility of a multilayer OANN in the frequency domain and can be extended to a scalable, integrated photonic platform with ultrafast weights updates, with potential applications to single-shot classification in spectroscopy.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"632 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337575","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

Nonlinear inference capacity of fiber-optical extreme learning machines 光纤极限学习机的非线性推理能力

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-06-21 DOI: 10.1515/nanoph-2025-0045

Sobhi Saeed, Mehmet Müftüoğlu, Glitta R. Cheeran, Thomas Bocklitz, Bennet Fischer, Mario Chemnitz

{"title":"Nonlinear inference capacity of fiber-optical extreme learning machines","authors":"Sobhi Saeed, Mehmet Müftüoğlu, Glitta R. Cheeran, Thomas Bocklitz, Bennet Fischer, Mario Chemnitz","doi":"10.1515/nanoph-2025-0045","DOIUrl":"https://doi.org/10.1515/nanoph-2025-0045","url":null,"abstract":"The intrinsic complexity of nonlinear optical phenomena offers a fundamentally new resource to analog brain-inspired computing, with the potential to address the pressing energy requirements of artificial intelligence. We introduce and investigate the concept of nonlinear inference capacity in optical neuromorphic computing in highly nonlinear fiber-based optical Extreme Learning Machines. We demonstrate that this capacity scales with nonlinearity to the point where it surpasses the performance of a deep neural network model with five hidden layers on a scalable nonlinear classification benchmark. By comparing normal and anomalous dispersion fibers under various operating conditions and against digital classifiers, we observe a direct correlation between the system’s nonlinear dynamics and its classification performance. Our findings suggest that image recognition tasks, such as MNIST, are incomplete in showcasing deep computing capabilities in analog hardware. Our approach provides a framework for evaluating and comparing computational capabilities, particularly their ability to emulate deep networks, across different physical and digital platforms, paving the way for a more generalized set of benchmarks for unconventional, physics-inspired computing architectures.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"25 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337573","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

MoS2 based 2D material photodetector array with high pixel density 基于二硫化钼的高像素密度二维材料光电探测器阵列

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-06-20 DOI: 10.1515/nanoph-2025-0048

Russell L. T. Schwartz, Hao Wang, Chandraman Patil, Martin Thomaschewski, Volker J. Sorger

{"title":"MoS2 based 2D material photodetector array with high pixel density","authors":"Russell L. T. Schwartz, Hao Wang, Chandraman Patil, Martin Thomaschewski, Volker J. Sorger","doi":"10.1515/nanoph-2025-0048","DOIUrl":"https://doi.org/10.1515/nanoph-2025-0048","url":null,"abstract":"Arrays of photodetector-based pixel sensors are ubiquitous in modern devices, such as smart phone cameras, automobiles, drones, laptops etc. Two-dimensional (2D) material-based photodetector arrays are a relevant candidate, especially for applications demanding planar form factors. However, shortcomings in pixel density and prototyping without cross contamination limit technology adoption and impact. Also, while 2D material detectors offer high absorption, graphene’s closed bandgap results in undesirably high dark currents. Here, we introduce the experimental demonstration of dense planar photodetector arrays. We demonstrate a micrometer-narrow pitched 2D detector pixels and show this approach’s repeatability by verifying performing of a 16-pixel detector array. Such dense and repeatable detector realization is enabled by a novel, selective, contamination-free 2D material transfer system, that we report here in automated operation. The so realized photodetectors responsivity peaks at a high 0.8 A/W. Furthermore, we achieve uniform detector performance via bias voltage tuning calibration to maximize deployment. Lastly, we demonstrate 2D arrayed photodetectors not only on a silicon chip platform but verify array performance on flexible polymer substrates. Densley-arrayed, flat, bendable, and uniform performing photodetector pixels enable emerging technologies in the space where lightweight and reliable performance is required, such as for the smart phone and emerging VR/AR markets, but also for smart gadgets, wearables, and also for size-weight-power-constrained aviation and space platforms.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"11 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144328536","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

The influence of shot noise on the performance of phase singularity-based refractometric sensors 弹丸噪声对基于相位奇点的折光传感器性能的影响

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-06-19 DOI: 10.1515/nanoph-2025-0101

Valeria Maslova, Georgy Ermolaev, Evgeny S. Andrianov, Aleksey V. Arsenin, Valentyn S. Volkov, Denis G. Baranov

{"title":"The influence of shot noise on the performance of phase singularity-based refractometric sensors","authors":"Valeria Maslova, Georgy Ermolaev, Evgeny S. Andrianov, Aleksey V. Arsenin, Valentyn S. Volkov, Denis G. Baranov","doi":"10.1515/nanoph-2025-0101","DOIUrl":"https://doi.org/10.1515/nanoph-2025-0101","url":null,"abstract":"Topological singularities of optical response functions – such as reflection amplitudes – enable elegant practical applications ranging from analog signal processing to novel molecular sensing approaches. A phase singularity-based refractometric sensor monitors the rapidly evolving argument of the optical field near the point of phase singularity, in contrast to the reflection zero in traditional surface plasmon polariton sensors. This raises a natural question: What happens with the sensitivity and resolution of such a sensor when it operates close to a zero of the response function, where the detected signal may be greatly influenced by various noise sources? In this paper, we systematically study the effect of the shot noise on the performance of a generic phase singularity-based refractometric sensor. We develop a theoretical model of a spectroscopic ellipsometry-based system operating near a phase singularity and couple the macroscopic optical picture of the detection with a quantum shot noise model. Within the developed model, we illustrate how the shot noise of the detector comes into play and study its effect on the sensitivity and resolution of the refractometric sensor. Our results suggest that such an ellipsometry-based phase singularity sensor remains stable even in the presence of shot noise near the point of zero reflection.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"29 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144328542","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 neuromorphic computing via temporal up-sampling and trainable encoding on a telecom device platform 电信设备平台上基于时间上采样和可训练编码的光学神经形态计算

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-06-18 DOI: 10.1515/nanoph-2024-0614

Egor Manuylovich, Dmitrii Stoliarov, David Saad, Sergei K. Turitsyn

{"title":"Optical neuromorphic computing via temporal up-sampling and trainable encoding on a telecom device platform","authors":"Egor Manuylovich, Dmitrii Stoliarov, David Saad, Sergei K. Turitsyn","doi":"10.1515/nanoph-2024-0614","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0614","url":null,"abstract":"Mapping input signals to a high-dimensional space is a critical concept in various neuromorphic computing paradigms, including models such as reservoir computing (RC) and extreme learning machines (ELM). We propose using commercially available telecom devices and technologies developed for high-speed optical data transmission to implement these models through nonlinear mapping of optical signals into a high-dimensional space where linear processing can be applied. We manipulate the output feature dimension by applying temporal up-sampling (at the speed of commercially available telecom devices) of input signals and a well-established wave-division-multiplexing (WDM). Our up-sampling approach utilizes a trainable encoding mask, where each input symbol is replaced with a structured sequence of masked symbols, effectively increasing the representational capacity of the feature space. This gives remarkable flexibility in the dynamical phase masking of the input signal. We demonstrate this approach in the context of RC and ELM, employing readily available photonic devices, including a semiconductor optical amplifier and nonlinear Mach–Zehnder interferometer (MZI). We investigate how nonlinear mapping provided by these devices can be characterized in terms of the increased controlled separability and predictability of the output state.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"15 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319765","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