Advanced Optical Materials最新文献_第4页

End-to-End Optimization of Metalens for Broadband and Wide-Angle Imaging

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-18 DOI: 10.1002/adom.202402853

Yeongmyeong Park, Youngjin Kim, Changhyun Kim, Gun-Yeal Lee, Hyeongyu Choi, Taewon Choi, Yoonchan Jeong, Byoungho Lee

{"title":"End-to-End Optimization of Metalens for Broadband and Wide-Angle Imaging","authors":"Yeongmyeong Park, Youngjin Kim, Changhyun Kim, Gun-Yeal Lee, Hyeongyu Choi, Taewon Choi, Yoonchan Jeong, Byoungho Lee","doi":"10.1002/adom.202402853","DOIUrl":"https://doi.org/10.1002/adom.202402853","url":null,"abstract":"End-to-end optimization of metalens and artificial intelligence-driven image restoration algorithms has recently emerged as a powerful tool for realizing ultra-compact imaging systems. However, the limited imaging quality of existing approaches remains challenging in meeting the demand for commercial devices due to the severe aberrations exhibited by metalens. These results in highly blurred sensor images, creating substantial challenges for accurate image restoration. In this work, a novel meta-imager is introduced that overcomes this challenge by employing an aperture-stop-integrated metalens and co-designing it with a computational image restoration network using a fully differentiable optimization framework. The proposed imager physically consists of a single metalens and an aperture stop located on the opposite side of the 1 mm-thick glass substrate. This configuration effectively alleviates off-axis aberrations such as coma and astigmatism, facilitating the image restoration process of the deep neural networks. The experimental results present that this scheme features 70° field-of-view, for full-color imaging across the entire visible spectrum. It is believed that this work represents a significant advancement in creating ultra-compact cameras using nanophotonics.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 9","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202402853","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photochromic Molecules Enable Optical Control of Optomechanical Coupling in a Cavity

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-18 DOI: 10.1002/adom.202402883

Marta Cagetti, Michele Cardelli, Ennio Arimondo, Lorenzo Lavista, Francesca D'Elia, Andrea Camposeo, Dario Pisignano, Donatella Ciampini

{"title":"Photochromic Molecules Enable Optical Control of Optomechanical Coupling in a Cavity","authors":"Marta Cagetti, Michele Cardelli, Ennio Arimondo, Lorenzo Lavista, Francesca D'Elia, Andrea Camposeo, Dario Pisignano, Donatella Ciampini","doi":"10.1002/adom.202402883","DOIUrl":"https://doi.org/10.1002/adom.202402883","url":null,"abstract":"Expanding the control of optomechanical coupling into the optical domain, namely beyond electronic and electromechanical gates, offers unequalled advantages in terms of spatial precision and remote operation. Here, a photochromic-based system is introduced with optically tunable optomechanical coupling. The system features a multilayered membrane as one of its mirrors, as well as a polymer layer doped with a photochromic molecule and a near-infrared absorbing dye. The interaction between mechanical modes and the electromagnetic field is harnessed to lower the effective temperature of mechanical vibrations. Laser cooling of a membrane vibrational mode is evidenced to about 115 K, and it is found that the cooling efficiency, mechanical damping, and photothermal response time can be effectively tuned by isomerization of the photochromic component. Such effect leads up to about 60% increase in cooling efficiency, related to photoinduced changes in volume and thermal properties during isomer conversion. These findings introduce new possibilities for the development of optomechanical systems with tunable properties entirely driven by light for applications in advanced sensing, nanomechanics, and optical logics.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 10","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202402883","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coherent Phonons, Localization, and Slow Polaron Formation in Lead-Free Gold Perovskite

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-17 DOI: 10.1002/adom.202402882

Sankaran Ramesh, Yonghong Wang, Pavel Chabera, Rafael Araujo, Mustafa Aboulsaad, Tomas Edvinsson, Feng Gao, Tönu Pullerits

{"title":"Coherent Phonons, Localization, and Slow Polaron Formation in Lead-Free Gold Perovskite","authors":"Sankaran Ramesh, Yonghong Wang, Pavel Chabera, Rafael Araujo, Mustafa Aboulsaad, Tomas Edvinsson, Feng Gao, Tönu Pullerits","doi":"10.1002/adom.202402882","DOIUrl":"https://doi.org/10.1002/adom.202402882","url":null,"abstract":"Lead-free metal halide perovskites are emerging as less-toxic alternatives to their lead-based counterparts. However, their applicability in optoelectronic devices is limited, and the charge transport dynamics remain poorly understood. Understanding photo-induced charge and structural dynamics is critical for unlocking the potential of these novel systems. In this work, ultrafast optical and Raman spectroscopy combined with band structure calculations are employed to investigate the coupled electronic and vibrational dynamics in Caesium gold bromide, a promising lead-free perovskite. It is found that the band-edge charge transfer states are strongly coupled to Au─Br stretching phonon modes, leading to frequency modulation of absorption by coherent phonons. Early-stage relaxation is characterized by dynamics of delocalized charge transfer excitation and slowly decaying coherent phonons. The electronic and vibrational relaxation reveals a slow formation of a localized polaronic state in the 10–20 ps timescale. Using a displaced harmonic oscillator model, the polaronic binding energy is estimated to be ≈80 meV following lattice relaxation along the phonon modes. Strong exciton-phonon coupling and slow polaron formation via coupling to lattice modes make this material a promising testbed for the control of coherent phonons and localized polaronic states using light.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 10","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202402882","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chalcogenide Visible Transmissive Metasurface Optics

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-17 DOI: 10.1002/adom.202402359

Hao Dai, Yilin Shi, Zezhao Ju, Kunhao Lei, Ye Luo, Jieren Song, Ruizhe Liu, Qikai Chen, Mengxue Qi, Yaoguang Ma, Lan Li, Hongtao Lin

引用次数: 0

Mixed Molybdenum–Tungsten Oxide as Dual-Band, VIS–NIR Selective Electrochromic Material

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-13 DOI: 10.1002/adom.202401995

Florian Gillissen, Michaël Lobet, Jennifer Dewalque, Pierre Colson, Gilles Spronck, Rachel Gouttebaron, Mathieu Duttine, Brandon Faceira, Aline Rougier, Luc Henrard, Rudi Cloots, Anthony Maho

{"title":"Mixed Molybdenum–Tungsten Oxide as Dual-Band, VIS–NIR Selective Electrochromic Material","authors":"Florian Gillissen, Michaël Lobet, Jennifer Dewalque, Pierre Colson, Gilles Spronck, Rachel Gouttebaron, Mathieu Duttine, Brandon Faceira, Aline Rougier, Luc Henrard, Rudi Cloots, Anthony Maho","doi":"10.1002/adom.202401995","DOIUrl":"https://doi.org/10.1002/adom.202401995","url":null,"abstract":"The energy efficiency of smart windows can be greatly improved by integrating dual-band electrochromic materials based on nanostructured doped metal oxides, as these allow for the dynamic and independent control of light and heat supplies in buildings, respectively, related to transmitted visible (VIS) and near-infrared (NIR) solar radiations. Mixed molybdenum–tungsten oxides MoyW1−yO3−δ “MoWOx” are considered as innovative compounds in this context: in comparison with parent WO3−δ formulations, a remarkable increase of unpaired electrons can be obtained from the formation of a larger amount of both reduced species and oxygen vacancies during the synthetic process of MoWOx materials, with a consequently boosted intensity of light absorption by 850–900 nm wavelengths. Consecutively, spin-coated films obtained from MoWOx structures, solvothermally synthesized for 1 h from 2/1 Mo/W atomic ratios, are shown to be electrochromically commutable through a noticeable VIS-darkened and NIR-transparent warm state, while WO3−δ benchmarks classically evolve between bright (VIS- and NIR-bleached), cool (VIS-bleached, NIR-opaque), and dark (VIS- and NIR-opaque) states. All in all, such advanced optical functionalities are of high interest for fine-tuning the selectivity and improving the efficiency of electrochromic fenestration solutions, further improving their capacity to adapt to different climates, seasons, and user preferences.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 7","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202401995","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum Optics Applications of Hexagonal Boron Nitride Defects

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-13 DOI: 10.1002/adom.202402508

Aslı Çakan, Chanaprom Cholsuk, Angus Gale, Mehran Kianinia, Serkan Paçal, Serkan Ateş, Igor Aharonovich, Milos Toth, Tobias Vogl

引用次数: 0

Hot Carrier Trapping in Light-Soaked Mixed Phase CsPbI3 Perovskite Nanocrystals

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-13 DOI: 10.1002/adom.202402899

Mrinal Kanti Panda, Debopam Acharjee, Asit Baran Mahato, Subhadip Ghosh

{"title":"Hot Carrier Trapping in Light-Soaked Mixed Phase CsPbI3 Perovskite Nanocrystals","authors":"Mrinal Kanti Panda, Debopam Acharjee, Asit Baran Mahato, Subhadip Ghosh","doi":"10.1002/adom.202402899","DOIUrl":"https://doi.org/10.1002/adom.202402899","url":null,"abstract":"Red-emitting CsPbI3 perovskite nanocrystals (r-PNCs) are considered promising for device applications due to their low bandgap. However, their practical use is hindered by significant photoluminescence (PL) intermittency and light-induced phase transitions. Specifically, the stable and bright α-phase of r-PNCs quickly converts into weakly emissive mixed-phase (δ and γ) within hours under UV irradiation. In the absence of light, r-PNCs synthesized using an advanced method have been shown to maintain their α-phase and brightness for over 20 days. This study explores the PL intermittency of r-PNCs to better understand the carrier dynamics and the nature of trap states in both the α-phase and mixed phases. These results indicate that r-PNCs, despite their apparent phase stability, undergo rapid phase deformation during a blinking experiment, as evidenced by the decrease in the average ON state intensity of their PL trajectories and the change in XRD patterns. Fluorescence-lifetime-intensity-distribution (FLID) mapping from blinking studies, combined with fluorescence lifetime correlation spectroscopy (FLCS), reveals that freshly prepared α-phase r-PNCs exhibit blinking behavior primarily governed by short-lived trap states near the band edge. These dynamic trap states function as multiple non-radiative recombination centers (MRCs). In contrast, light-soaked mixed-phase r-PNCs develop long-lived deep trap states, leading to dispersive blinking predominantly caused by hot carrier (HC) recombination.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 10","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasmon Induced Charge Transfer Dynamics in Metallic Nanoparticle-MoSe2 Nanoflake Heterostructures

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-13 DOI: 10.1002/adom.202402679

P. K. Verma, Vignesh Balaji Kumar, Varadharajan Srinivasan

{"title":"Plasmon Induced Charge Transfer Dynamics in Metallic Nanoparticle-MoSe2 Nanoflake Heterostructures","authors":"P. K. Verma, Vignesh Balaji Kumar, Varadharajan Srinivasan","doi":"10.1002/adom.202402679","DOIUrl":"https://doi.org/10.1002/adom.202402679","url":null,"abstract":"Plasmon-induced hot carrier dynamics are crucial in various practical applications such as water splitting and photovoltaics. A hybrid system formed by interfacing plasmonic Au or Ag metal nanoparticles with triangular MoSe2 nanoflakes is proposed, which also possess edge-localized plasmons. Using time-dependent density functional theory-based simulations, this bi-plasmonic system is shown to exhibit interfacial charge transfer induced by plasmonic excitations of either component. Tracking the fate of photoinduced plasmons in the system reveals that a significant pathway to their decay involves the direct transfer of hot-carriers across the interface. This study finds that while the likelihoods of both the direct hot-electron and hot-hole transfers are comparable, in most cases considered, the latter dominates. The extent and net direction of direct charge transfer are found to depend on various tunable features of the interface, including the plasmon mode (nanoparticle or nanoflake) excited and the polarization of the light used. It is anticipated that this platform could prove extremely useful for widening the substrate scope in photocatalysis and photodetection applications.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 8","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

2D Transition Metal Carbo-Chalcogenide Nb2CSe2: A Combination of Transition Metal Dichalcogenide and MXene for Ultrafast Photonics Application (Advanced Optical Materials 5/2025)

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-12 DOI: 10.1002/adom.202570056

Ke Ren, Zhongben Pan, Xueyang Tu, Han Pan, Kong Gao, Zongsheng Li, Hongwei Chu, Yuqiang Fang, Dechun Li

引用次数: 0

Blue Thermally Activated Delayed Fluorescent OLEDs With EQE up to 25% via 3MMLCT-Induced and Short-Lived Phosphorescent Dinuclear Pt(II) Sensitizers (Advanced Optical Materials 5/2025)

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-02-12 DOI: 10.1002/adom.202570057

Gyeong Seok Lee, Kyo Min Hwang, Iljoon Kang, Seong Hwan Hong, Sungbum Kim, Yeonju Jeong, Ramachandran Elumalai, Soo-Byung Ko, Taekyung Kim, Yun-Hi Kim

引用次数: 0