Advanced Optical Materials最新文献

{"title":"Planar Large Field-of-View Spectral Imaging Based on Metasurface Array","authors":"Quan Yuan,&nbsp;Yuhang Yang,&nbsp;Qianhui Bi,&nbsp;Fei Wu,&nbsp;Haoxiang Yu,&nbsp;Qin Ge,&nbsp;Boping He,&nbsp;Shujie Yang,&nbsp;Qingyue Zhen,&nbsp;Shuming Wang,&nbsp;Shining Zhu,&nbsp;Zhenlin Wang","doi":"10.1002/adom.202402507","DOIUrl":"https://doi.org/10.1002/adom.202402507","url":null,"abstract":"<p>Achieving high-performance spectral imaging over large fields of view (FOV) has remained challenging, particularly with conventional bulky optical systems. Here, a compact transversely dispersive metasurface array is introduced, designed for wide FOV spectral imaging. The system achieves efficient aperture encoding via distinct phase gradients tailored to different incident angles. A genetic algorithm optimizes the spectral reconstruction process, allowing for high-accuracy imaging with a single snapshot. The system demonstrates 120° FOV spectral imaging across 11 channels in the 400–700 nm visible range, using a 91 × 91 metasurface array with 81.5% efficiency in light focusing and first-order diffraction. This approach represents an advancement over traditional methods, offering broad potential in material classification, chemical analysis, remote sensing, and defect detection.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 5","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143397044","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}

{"title":"A Novel Multifunctional and Broadband Near-Infrared Phosphor, Lu3MgGa3GeO12:Cr3+, Yb3+, Nd3+ Achieved through a Chemical Unit Substitution and Energy Transfer Strategy","authors":"Xin Xie,&nbsp;Wanyin Ge,&nbsp;Qian Zhang,&nbsp;Ye Tian,&nbsp;Zili Luo,&nbsp;Shifan Shang,&nbsp;Jianke Liu,&nbsp;Wenbin Cao","doi":"10.1002/adom.202401957","DOIUrl":"https://doi.org/10.1002/adom.202401957","url":null,"abstract":"<p>Cr³⁺-doped near-infrared (NIR) phosphors have attracted significant attention in recent years. Despite this, achieving high-performance NIR phosphors with broadband emission and excellent thermal stability remains a considerable challenge. This study presents Lu₃Ga₅O₁₂:Cr³⁺, which demonstrates a tunable emission peak ranging from 705 to 759 nm and an increased full-width at half-peak maximum (FWHM) from 46 to 139 nm by substituting the [Mg²⁺-Ge⁴⁺] chemical unit for the [Ga³⁺-Ga³⁺] unit. Additionally, in Lu₃MgGa₃GeO₁₂:Cr³⁺, Yb³⁺, an energy transfer channel (Cr³⁺-Yb³⁺) is constructed. Under blue light excitation, the characteristic emission peaks of Cr³⁺ (600–900 nm) and Yb³⁺ (900–1100 nm) are observed simultaneously. However, the emission band between 850 and 900 nm is relatively weak, resulting in a discontinuous emission spectrum. To address this, Lu₃MgGa₃GeO₁₂:Cr³⁺, Yb³⁺, Nd³⁺ phosphors are proposed, which exhibit a continuous broadband NIR emission with a FWHM of 253 nm and internal quantum efficiency of 47.3%. The luminescence intensity retains 81% of its room temperature value even at 423 K. Combining this new phosphor with a blue LED chip results in a portable NIR light source with potential applications in non-destructive detection, information encryption, bio-imaging, and NIR remote control. This work offers a novel perspective for developing high-performance NIR phosphors.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 1","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115619","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}

{"title":"Unveiling Charge Dependent Law to Enhance Birefringence in 2-Aminopyrimidine Family","authors":"Muhammad Arif,&nbsp;Xu Liu,&nbsp;Zijian Li,&nbsp;Hangwei Jia,&nbsp;Yansheng Jiang,&nbsp;Zhihua Yang,&nbsp;Xueling Hou,&nbsp;Shilie Pan","doi":"10.1002/adom.202402327","DOIUrl":"https://doi.org/10.1002/adom.202402327","url":null,"abstract":"<p>Salts and co-crystals composed of planar <i>π</i>-conjugated functional units represent a fascinating class of materials, featuring both enlarged birefringence and a strong SHG effect. Herein, the optical properties of <i>π</i>-conjugated (C₄H₇N₃)²⁺ functional unit within 2-aminopyrimidine (2-AP) family are investigated for the first time. Furthermore, twelve novel compounds are successfully synthesized by applying four different strategies. In these strategies, (C₄H₇N₃)²⁺, (C₄H₆N₃)⁺, and (C₄H₅N₃) functional units are introduced into the crystal structure, both solely and in combination, to analyze the alteration in birefringence. Remarkably, a birefringence rule with (C₄H₇N₃)²⁺ &lt; (C₄H₆N₃)⁺ &lt; (C₄H₅N₃), stating that an increase in net charge over <i>π</i>-conjugated functional unit leads to a reduced birefringence, is discovered. Consequently, the inclusion of a charge-neutral (C₄H₅N₃) functional unit within the crystal structure along with coplanar arrangement is a promising approach to enhance birefringence. Furthermore, <b>D-2</b> [(C₄H₅N₃)(H₃C₃N₃O₃)] realizes Δn_calc = 0.412 maximum in the (2-AP) family. Notably, both <b>A-1</b> [(C₄H₇N₃)(CF₃SO₃)₂] and <b>B-1</b> [(C₄H₆N₃)₂(IO₃)₂(H₂O)] crystalize in the non-centrosymmetric space groups, with <b>B-1</b> exhibiting SHG efficiency of ≈1.4 × KDP @ 1064 nm, with the shortest <i>λ</i>_PM at 384 nm. This work provides new insight into discovering novel birefringent and non-linear optical materials with high performances in the wide chemical space.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 4","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115622","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}

{"title":"A Multi-Polarization Multi-Band Reconfigurable Cloaking-Illusion Metasurface","authors":"Yang Fu,&nbsp;Xiaojun Huang,&nbsp;Yu Luo,&nbsp;Linyan Guo,&nbsp;Junyu Liang,&nbsp;Jing Jin,&nbsp;Helin Yang","doi":"10.1002/adom.202402381","DOIUrl":"https://doi.org/10.1002/adom.202402381","url":null,"abstract":"<p>A switchable conformal-skin cloak for multi-polarization cloaking-illusion is presented. Multi-polarization electromagnetic cloaking-illusion of the Poincaré sphere is analyzed and realized based on generalized Snell's law and Pancharatnam–Berry (PB) phase theory. The cloak achieves adaptive cloaking-illusion with linearly polarized in X-band (7.5–9.5 GHz) and circularly polarized in K-band(16–20 GHz), respectively. To achieve a reconfigurable carpet cloak, structured water acting as a phase-change material is introduced into the cell structure design, enabling reconfigurable reflection phases during circularly polarized excitation. This is the first time that a water structure is used instead of a phase-change material to create a phase-shifting invisibility cloak. Conformal integration samples are fabricated and tested by combining 3D-printing technology and PCB fabrication technology, and the simulation results are in agreement with the experimental results. This method realizes switchable cloaking-illusion. The impact of surface fabrication on electromagnetic properties are reduced using 3D printing. The approach is adaptable to terahertz and optical bands, providing crucial guidance for the integrated creation of cloaking-illusion on arbitrary shapes.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 4","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115575","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}

{"title":"Nonlinear Vortex Dichroism in Chiral Molecules","authors":"Luke Cheeseman,&nbsp;Kayn A. Forbes","doi":"10.1002/adom.202402151","DOIUrl":"https://doi.org/10.1002/adom.202402151","url":null,"abstract":"<p>The recent discovery that linearly polarized light with a helical wavefront can exhibit vortex dichroism (also referred to as helical dichroism) has opened up new horizons in chiroptical spectroscopy with structured chiral light. Recent experiments have now pushed optical activity with vortex beams into the regime of nonlinear optics. Here the theory of two-photon absorption (TPA) of focused optical vortices by chiral molecules: nonlinear vortex dichroism (NVD) is presented. It is discovered that highly distinct features arise in the case of TPA with focused vortex beams, including the ability to probe chiral molecular structure not accessible to current methods and that the differential rate of TPA is significantly influenced by the orientation of the state of linear polarization. This study provides strong evidence that combining nonlinear optical activity with structured light provides new and improved routes to studying molecular chirality.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 3","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202402151","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115268","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}

{"title":"Xanthan-Induced Gelation in Cellulose Nanocrystal Suspensions: Altering Self-Assembly and Optical Purity","authors":"Tadeusz Balcerowski,&nbsp;Ahu Gümrah Dumanli","doi":"10.1002/adom.202401730","DOIUrl":"https://doi.org/10.1002/adom.202401730","url":null,"abstract":"<p>Cellulose nanocrystals are charged rod-like nanoparticles that can spontaneously organize into cholesteric mesophases upon evaporation to produce photonic films with circular polarization. In this study, it is demonstrated that through the modulation of gelation and kinetics of phase separation via the addition of a strong gelating agent, xanthan gum, the cellulose nanocrystals produce flexible photonic films with improved optical purity in terms of circular reflection. The work reveals the self-assembly behavior as a function of xanthan gum through the volume depletion mechanism, quenching of the tactoids at the early stages of the self-assembly, and evaporation into cholesteric films. In dried films, this leads to significant reduction in the domain size and the absence of domain folding which is usually caused by the merger of large tactoids. Despite the reduction in metallic iridescence caused by the entrapment of cellulose nanocrystal tactoids, the films exhibit improved macroscopic color uniformity across 30–60° observation angles, which implies a combined effect of surface texturing and scattering of visible light induced by incorporating xanthan gum within the co-assembled structure. Overall the work provides new insights into the gelation mechanism in hybrid cellulose nanocrystal systems and presents an efficient approach to control the self-assembly and macroscopic color appearance.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 1","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202401730","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115267","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}

{"title":"La2Hf2O7 Based TBC Materials with Near-Infrared Ultra-Low Transmittance for Thermal Radiation Shielding","authors":"Qingyuan Zhao,&nbsp;Shuqi Wang,&nbsp;Guoliang Chen,&nbsp;Yifan Sun,&nbsp;Yongchun Zou,&nbsp;Enyu Xie,&nbsp;Zijian Peng,&nbsp;Junteng Yao,&nbsp;Ouyang Jiahu,&nbsp;Yaming Wang,&nbsp;Dechang Jia,&nbsp;Yu Zhou","doi":"10.1002/adom.202401768","DOIUrl":"https://doi.org/10.1002/adom.202401768","url":null,"abstract":"<p>As the thrust-weight ratios of aero-engines increase, the severe thermal radiation emitted by high-temperature gases (≥1800 K) poses a significant challenge for thermal barrier coating (TBC) materials. Traditional TBC materials, despite their reliable thermal insulation properties, are nearly transparent to infrared radiation, which leads to direct radiative heating of the metallic substrate, consequently reducing its service life. In response, a La₂Hf₂O₇-based ceramic doped with a NiFe₂O₄ second phase is developed to prevent the penetration of thermal radiation and achieve exceptional thermal radiation shielding properties. The experimental results exhibit that 85%La₂Hf₂O₇/15%NiFe₂O₄ possesses high absorptivity exceeding 0.85 across a broad wavelength range (0.2-14 µm), and ultra-low transmittance of 0.001 in the range of 0.4-2.5 µm. It attributes to the presence of multi-valent transition elements (Ni⁺/Ni²⁺ and Fe²⁺/Fe³⁺) in NiFe₂O₄, which significantly reduce the band gap width, enhancing photon absorption, scattering, and electron transition probability following infrared radiation absorption. These multifaceted contributions minimize radiative thermal conductivity to 1.55 W m⁻¹ K⁻¹, effectively shielding the radiative heat transfer. These advantages make this high-temperature thermal shielding strategy highly competitive for the next generation of TBC materials development and application.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 1","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114875","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}

{"title":"Nonlinear Optical Properties of 2D vdW Ferromagnetic Nanoflakes for Magneto-Optical Logic Applications","authors":"Satyabrata Bera,&nbsp;Sk Kalimuddin,&nbsp;Arnab Bera,&nbsp;Deep Singha Roy,&nbsp;Tuhin Debnath,&nbsp;Soham Das,&nbsp;Mintu Mondal","doi":"10.1002/adom.202402318","DOIUrl":"https://doi.org/10.1002/adom.202402318","url":null,"abstract":"<p>2D magnetic materials are garnering significant interest due to their high carrier mobilities, valley pseudospins, tunable bandgaps, and novel spin textures enabling exciting opportunities to explore unique nonlinear optical phenomena and develop next-generation magneto-optic and optoelectronic devices. Recently, the Fe_<i>n</i>GeTe₂ (F_<i>n</i>GT) family of 2D magnets has emerged as a promising candidate for spintronic applications due to their non-trivial spin textures in low dimensions compared to bulk materials. A coherent interaction is reported between light and suspended F_<i>n</i>GT nanoflakes (NFs), resulting in spatial self-phase modulation (SSPM), a direct manifestation of the optical Kerr effect. The nonlinear refractive index (n₂) and third-order optical susceptibility (χ⁽³⁾) are quantitatively estimated from the self-diffraction patterns of F_<i>n</i>GT NFs. The time evolution of the self-diffraction patterns aligns with the “wind-chime” model, and the deformation of rings is analyzed in terms of thermal effects. F_<i>n</i>GT systems exhibit strong optical non-linearity (χ⁽³⁾ ∼ 10⁻⁸ esu), an order of magnitude higher than other metal dichalcogenides and 2D magnets. Furthermore, all-optical logic gates have been realized using cross-phase modulation. The F_<i>n</i>GT family of 2D magnets, with their high curie temperature and robust higher-order optical nonlinearities, are promising candidates for future magneto-optical and optoelectronic device applications.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 4","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114520","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}

{"title":"Hg4InS2Cl5: Achieving Giant Optical Anisotropy by Introducing Well-Aligned Linear [Hg2S2] Units","authors":"Qixian Ren,&nbsp;Yu Chu,&nbsp;Wenqi Jin,&nbsp;Mengmeng Chen,&nbsp;Chen Cui,&nbsp;Yabo Wu,&nbsp;Shilie Pan","doi":"10.1002/adom.202402170","DOIUrl":"https://doi.org/10.1002/adom.202402170","url":null,"abstract":"<p>Optical anisotropy, manifested as birefringence, plays an important role in the development of future electronic and optoelectronic devices. Designing optical materials with giant birefringence usually relies on the merit selection and arrangement of microscopic units. Anionic clusters with linear coordination geometries often exhibit larger polarizability anisotropy, making them recognized birefringence gain modules. Nonetheless, the rarity of linear units has hindered the advancement of research in this region. In this study, a new Hg-based compound, Hg₄InS₂Cl₅, containing a well-aligned linear [Hg₂S₂] functional unit has been synthesized. It exhibits the largest experimental birefringence (0.35@546 nm) and the widest bandgap of 3.10 eV among Hg-based thiohalides. Density functional theory (DFT) calculation shows that the [Hg₂S₂] unit has a substantial polarizability anisotropy (𝛿 = 188.05) among known Hg-based anionic clusters, leading to a significant enhancement of birefringence along the direction of linear unit arrangement. This research highlights the potential of [Hg₂S₂] units in improving birefringence and provides insights for the future development of advanced infrared optical materials.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 3","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114521","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}

{"title":"Retina-Like Neuromorphic Visual Sensor for Sensing Broad-Spectrum Ultraviolet Light\t(Advanced Optical Materials 35/2024)","authors":"Zhaoying Xi,&nbsp;Maosheng Liu,&nbsp;Jia-Han Zhang,&nbsp;Shaohui Zhang,&nbsp;Lei Li,&nbsp;Shan Li,&nbsp;Mingming Jiang,&nbsp;Weihua Tang,&nbsp;Zeng Liu","doi":"10.1002/adom.202470113","DOIUrl":"https://doi.org/10.1002/adom.202470113","url":null,"abstract":"<p><b>Retina-Like Neuromorphic Visual Sensor for Sensing UV Light</b></p><p>A novel retina-like InGaO thin-film-based neuromorphic visual sensor is presented in article number 2402193 by Weihua Tang, Zeng Liu, and co-workers. The device enables sensing of broad-spectrum ultraviolet light, has excellent photoelectric synaptic performances, and can effectively mimic a variety of image sensing and pre-processing functions of the human retina. It provides a new method for human to perceive invisible ultraviolet light.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"12 35","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202470113","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860825","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}