Nanophotonics最新文献

High-efficiency generation of bi-functional holography with metasurfaces

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-02-19 DOI: 10.1515/nanoph-2024-0677

Changhong Dai, Tong Liu, Dongyi Wang, Lei Zhou

{"title":"High-efficiency generation of bi-functional holography with metasurfaces","authors":"Changhong Dai, Tong Liu, Dongyi Wang, Lei Zhou","doi":"10.1515/nanoph-2024-0677","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0677","url":null,"abstract":"Holography is a highly desired technology in modern photonics, yet setups for traditional generating methods suffer from complexity and bulky sizes. While metasurface-based holography exhibits advantages of compactness and easy-fabrication, most meta-holograms realized so far exhibit only single functionality, with a few multifunctional ones suffering from imbalances of efficiency and device-thickness. Here, we propose a generic approach to design ultra-thin metasurfaces for realization of multiple holographic images with high efficiencies, and experimentally verify the concept in the telecom regime. We first design a series of high-efficiency reflective meta-atoms exhibiting incident-spin-delinked reflection phases governed by geometric and resonant mechanisms, and experimentally characterize their optical properties at wavelengths around 1,064 nm. We next experimentally demonstrate a single-functional meta-hologram as a benchmark test. Finally, we employ the designed meta-atoms to construct a metasurface with the thickness ∼1/4λ, and experimentally demonstrate its capability of generating two distinct holographic images under illuminations of circularly polarized light beams with different helicities, possessing generation efficiencies ∼48.08 %. Our work provides a highly-efficient and ultra-compact platform to generate multifunctional holographic images, which may inspire numerous applications in integration optics.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"19 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451510","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

Improving quantum metrology protocols with programmable photonic circuits

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-02-19 DOI: 10.1515/nanoph-2024-0640

Alberto Muñoz de las Heras, Diego Porras, Alejandro González-Tudela

{"title":"Improving quantum metrology protocols with programmable photonic circuits","authors":"Alberto Muñoz de las Heras, Diego Porras, Alejandro González-Tudela","doi":"10.1515/nanoph-2024-0640","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0640","url":null,"abstract":"Photonic quantum metrology enables the measurement of physical parameters with precision surpassing classical limits by using quantum states of light. However, generating states providing a large metrological advantage is hard because standard probabilistic methods suffer from low generation rates. Deterministic protocols using non-linear interactions offer a path to overcome this problem, but they are currently limited by the errors introduced during the interaction time. Thus, finding strategies to minimize the interaction time of these non-linearities is still a relevant question. In this work, we introduce and compare different deterministic strategies based on continuous and programmable Jaynes–Cummings and Kerr-type interactions, aiming to maximize the metrological advantage while minimizing the interaction time. We find that programmable interactions provide a larger metrological advantage than continuous operations at the expense of slightly larger interaction times. We show that while for Jaynes–Cummings non-linearities the interaction time grows with the photon number, for Kerr-type ones it decreases, favoring the scalability to big photon numbers. Finally, we also optimize different measurement strategies for the deterministically generated states based on photon-counting and homodyne detection.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"205 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451511","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

Luminescence thermometry based on photon emitters in nanophotonic silicon waveguides

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-02-18 DOI: 10.1515/nanoph-2024-0678

Kilian Sandholzer, Stephan Rinner, Justus Edelmann, Andreas Reiserer

{"title":"Luminescence thermometry based on photon emitters in nanophotonic silicon waveguides","authors":"Kilian Sandholzer, Stephan Rinner, Justus Edelmann, Andreas Reiserer","doi":"10.1515/nanoph-2024-0678","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0678","url":null,"abstract":"The reliable measurement and accurate control of the temperature within nanophotonic devices is a key prerequisite for their application in both classical and quantum technologies. Established approaches use sensors that are attached in proximity to the components, which only offers a limited spatial resolution and thus impedes the measurement of local heating effects. Here, we, therefore, study an alternative temperature sensing technique that is based on measuring the luminescence of erbium emitters directly integrated into nanophotonic silicon waveguides. To cover the entire temperature range from 295 K to 2 K, we investigate two different approaches: The thermal activation of nonradiative decay channels for temperatures above 200 K and the thermal depopulation of spin and crystal field levels at lower temperatures. The achieved sensitivity is 0.22(4) %/K at room temperature and increases up to 420(50) %/K at approximately 2 K. Within a few-minute measurement interval, we thus achieve a measurement precision that ranges from 0.04(1) K at the lowest studied temperature to 6(1) K at ambient conditions. In the future, the measurement time can be further reduced by optimizing the excitation pulse sequence and the fiber-to-chip coupling efficiency. Combining this with spatially selective implantation promises precise thermometry from ambient to cryogenic temperatures with a spatial resolution down to a few nanometers.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"14 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143434992","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

Role of complex energy and momentum in open cavity resonances

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-02-15 DOI: 10.1515/nanoph-2024-0623

DongJun Kang, Eun Su Jeon, SeokJae Yoo

引用次数: 0

Nanophotonic device design based on large language models: multilayer and metasurface examples

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-02-15 DOI: 10.1515/nanoph-2024-0674

Myungjoon Kim, Hyeonjin Park, Jonghwa Shin

{"title":"Nanophotonic device design based on large language models: multilayer and metasurface examples","authors":"Myungjoon Kim, Hyeonjin Park, Jonghwa Shin","doi":"10.1515/nanoph-2024-0674","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0674","url":null,"abstract":"Large language models (LLMs) have gained significant prominence in language processing, demonstrating remarkable performance across a wide range of tasks. Recently, LLMs have been explored in various scientific fields beyond language-based tasks. However, their application in the design of nanophotonic devices remains less explored. Here, we investigate the capabilities of LLMs to address nanophotonic design problems without requiring domain-specific expertise of the user. Our findings show that an LLM with in-context learning enables nonexpert users to calculate optical responses of multilayer films via numerical simulations. Through conversational interaction and feedback between the LLM and the user, an optimal design of the multilayer films can be also produced for the user-provided target optical properties. Furthermore, we fine-tune the LLM using text-based representations of the structure and properties of optical metasurfaces. We demonstrate that the fine-tuned LLM can generate metasurface designs with target properties by reversing the input and output text. This research highlights the potential of LLMs to expedite the nanophotonic design process and to make it more accessible to a wider audience.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"90 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417730","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

Bound polariton states in the Dicke–Ising model

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-02-15 DOI: 10.1515/nanoph-2024-0568

Juan Román-Roche, Álvaro Gómez-León, Fernando Luis, David Zueco

引用次数: 0

Tunable meta-device for large depth of field quantitative phase imaging

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-02-15 DOI: 10.1515/nanoph-2024-0661

Jialuo Cheng, Zihan Geng, Yin Zhou, Zhendong Luo, Xiaoyuan Liu, Yinuo Xiang, Junxiao Zhou, Mu Ku Chen

{"title":"Tunable meta-device for large depth of field quantitative phase imaging","authors":"Jialuo Cheng, Zihan Geng, Yin Zhou, Zhendong Luo, Xiaoyuan Liu, Yinuo Xiang, Junxiao Zhou, Mu Ku Chen","doi":"10.1515/nanoph-2024-0661","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0661","url":null,"abstract":"In traditional optical imaging, image sensors only record intensity information, and phase information of transparent samples such as cells and semiconductor materials is hard to obtain. Quantitative phase imaging techniques are crucial for obtaining detailed phase information, but current methods often require complex interferometric setups or mechanical adjustments, limiting their practical applicability. Here, we proposed a novel meta-device integrating a PB phase-based meta-lens, a refractive lens, and an electronically tunable lens with a polarization camera to capture multiple defocused images simultaneously for the transport of intensity equation-based phase retrieval algorithm. By leveraging the distinct focus lengths for left-circularly polarized and right-circularly polarized light, the meta-device eliminates the need for multiple shots and mechanical movements. Our approach enables rapid, precise, quantitative phase imaging at different depths. The experiment shows the accuracy of our methods is 98.47 % and with a 2.52 mm depth range of the objects that can be retrieved, making it highly suitable for dynamic and depth-varying samples, such as cells in solution.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"20 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417733","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

Polarization-independent narrowband photodetection with plasmon-induced thermoelectric effect in a hexagonal array of Au nanoholes

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-02-15 DOI: 10.1515/nanoph-2024-0643

Sehyeon Kim, San Kim, Jae-Young Kim, Tae-In Jeong, Munki Song, Seungchul Kim

{"title":"Polarization-independent narrowband photodetection with plasmon-induced thermoelectric effect in a hexagonal array of Au nanoholes","authors":"Sehyeon Kim, San Kim, Jae-Young Kim, Tae-In Jeong, Munki Song, Seungchul Kim","doi":"10.1515/nanoph-2024-0643","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0643","url":null,"abstract":"Photodetectors are crucial for modern technologies such as optical communications, imaging, autonomous vehicles, and machine vision. However, conventional semiconductor-based photodetectors require additional filtering systems due to their broad spectral response, leading to increased costs and complexity. Here, we present a narrow spectral response photodetector using hexagonally arranged plasmonic Au nanohole structures, eliminating the need for optical filters. The device achieves a full-width at half maximum (FWHM) bandwidth of ∼40 nm with a response peak at 760 nm and a linear photocurrent responsivity of 0.95 μA/W. The photothermoelectric effect, induced by the nonradiative decay of plasmonic resonance, converts optical radiation into an electric potential on the Au surface. The hexagonal nanohole design generates polarization-independent photocurrents and allows spectral tuning beyond the cutoff region of silicon photodetectors. This versatile approach enables customizable response characteristics across a broad wavelength range through geometric design, enhancing its potential for diverse applications.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"9 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417731","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

Tunable holographic metasurfaces for augmented and virtual reality

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-02-15 DOI: 10.1515/nanoph-2024-0734

Akeshi Aththanayake, Andrew Lininger, Cataldo Strangi, Mark A. Griswold, Giuseppe Strangi

引用次数: 0

Enhanced photoluminescence of strongly coupled single molecule-plasmonic nanocavity: analysis of spectral modifications using nonlocal response theory

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-02-15 DOI: 10.1515/nanoph-2024-0580

Yoshitsugu Tomoshige, Mamoru Tamura, Tomohiro Yokoyama, Hajime Ishihara

{"title":"Enhanced photoluminescence of strongly coupled single molecule-plasmonic nanocavity: analysis of spectral modifications using nonlocal response theory","authors":"Yoshitsugu Tomoshige, Mamoru Tamura, Tomohiro Yokoyama, Hajime Ishihara","doi":"10.1515/nanoph-2024-0580","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0580","url":null,"abstract":"Plasmonic nanocavities with highly localized fields in their nanogaps significantly enhance light–matter interactions at the nanoscale, surpassing the diffraction limit. Strong coupling between a plasmonic nanocavity and a molecule forms hybrid upper and lower branch states, resulting in Rabi splitting (RS) in optical spectra. However, scattering and absorption spectra often fail to unambiguously distinguish whether the double peaks arise from energy transparency or RS. In contrast, photoluminescence (PL) clearly reveals the quantum state of a molecule coupled with a plasmon by filtering out background fields. This paper presents a theoretical framework based on nonlocal response theory to calculate the PL of a single molecule coupled with arbitrary metallic nanostructures. Our theory provides an analytical approach to design the spatial arrangement of metallic nanostructures and molecular orbitals and to calculate the PL in strongly coupled systems, addressing limitations in previous studies. Using this framework, we investigated a coupled system comprising a gold nanoplate dimer and a planar porphyrin tape. By modifying porphyrin units to modulate coupling strength, we explored the molecular quantum state coupled with the nanocavity through PL analysis. We elucidated the spectral features of absorption, excitation, and PL in weak and strong coupling regimes and evaluated the dependence of coupling strength on the molecular position and orientation within the nanogap. Our results demonstrate that the quantum state of a molecule in an optically forbidden transition can be excited by the highly localized field in the nanogap. This work advances the fundamental understanding of light–matter interactions at the nanoscale and provides a foundation for the development of future nanophotonic devices.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"79 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417728","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