Advanced Optical Materials最新文献

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Chiral Amine CsPbBr3 Nanocrystals: Ligand Exchange Strategy-Induced Circularly Polarized Luminescence and Chirality Modulation 手性胺CsPbBr3纳米晶体:配体交换策略诱导的圆极化发光和手性调制
IF 7.2 2区 材料科学
Advanced Optical Materials Pub Date : 2026-03-12 Epub Date: 2026-02-17 DOI: 10.1002/adom.202503144
Chengsi Zhao, Jinfeng Xie, Jun Liu, Haiqiong Du, Shirui Zhang, Huiying Gao, He Huang, Weihai Ni, Qi Xue
{"title":"Chiral Amine CsPbBr3 Nanocrystals: Ligand Exchange Strategy-Induced Circularly Polarized Luminescence and Chirality Modulation","authors":"Chengsi Zhao,&nbsp;Jinfeng Xie,&nbsp;Jun Liu,&nbsp;Haiqiong Du,&nbsp;Shirui Zhang,&nbsp;Huiying Gao,&nbsp;He Huang,&nbsp;Weihai Ni,&nbsp;Qi Xue","doi":"10.1002/adom.202503144","DOIUrl":"10.1002/adom.202503144","url":null,"abstract":"<div>\u0000 \u0000 <p>Chiral lead halide perovskite nanocrystals (NCs) coherently integrate promising optical property with chirality, exhibiting great potential for next generation technologies across optoelectronics, asymmetric catalysis, chiral recognition, and 3D display technologies. However, the persistent challenges of weak optical activity and limited modulation methods in this material system severely hinder its practical implementation. Herein, a simple post-treatment strategy is proposed for synthesizing chiral lead halide perovskite NCs with chiral amine ligands R/S-3MPEA to modulate their optical properties and chiral characteristics. Experimental results demonstrate that the CsPbBr<sub>3</sub> NCs treated with chiral amine ligands R/S-3MPEA display mirror-symmetric circular dichroism (CD) signals at 495 nm for R/S-3MPEA-modified NCs, with luminescence asymmetry factor g<sub>lum</sub> reaching 0.64 × 10<sup>−3</sup>, unambiguously confirming their chiral nature. Furthermore, these NCs achieve exceptional optical performance in the visible spectrum, characterized by extended fluorescence lifetimes as a result of passivation. Additionally, the fabrication of light-emitting diodes (LEDs) based on the chiral CsPbBr<sub>3</sub> NCs with a chromaticity coordinate of (0.1097, 0.7430) at 80 mA validates the practical application. This research provides additional experimental evidence for the synthesis of chiral perovskite NCs and establishes a foundation for their applications in optoelectronics, spintronics, and related fields.</p>\u0000 </div>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"14 10","pages":""},"PeriodicalIF":7.2,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566534","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
Vat Photopolymerized HEMA/HEA Hydrogels for Solvent-Responsive Transparency and Optical Encryption 还原光聚合HEMA/HEA水凝胶用于溶剂响应透明和光加密
IF 7.2 2区 材料科学
Advanced Optical Materials Pub Date : 2026-03-12 Epub Date: 2026-01-21 DOI: 10.1002/adom.202503454
Murad Ali, Mohammed Ayaz Uddin, Dileep Chekkaramkodi, Rashid K. Abu Al-Rub, Haider Butt
{"title":"Vat Photopolymerized HEMA/HEA Hydrogels for Solvent-Responsive Transparency and Optical Encryption","authors":"Murad Ali,&nbsp;Mohammed Ayaz Uddin,&nbsp;Dileep Chekkaramkodi,&nbsp;Rashid K. Abu Al-Rub,&nbsp;Haider Butt","doi":"10.1002/adom.202503454","DOIUrl":"10.1002/adom.202503454","url":null,"abstract":"<p>Vat photopolymerization (VPP) offers a powerful route for fabricating hydrogels with tailored microstructures and multifunctionalities. Here, a photopolymerizable HEMA/HEA resin that produces 3D-printed hydrogels exhibiting reversible, solvent-driven optical transitions is presented. Printed structures are transparent in the dry state, become opaque upon immersion in deionized water due to hydration-induced microphase separation and refractive index heterogeneity, and recover transparency when exchanged into polar organic solvents such as ethanol and dimethyl sulfoxide (DMSO). This optical switching mechanism enables real-time hydration sensing, solvent-programmable information encryption, and optical memory functions. Complementary FTIR analysis demonstrates solvent exchange through the appearance of characteristic DMSO peaks and the suppression of water-related absorptions. Mechanical and rheological characterization reveals high ductility, elastic dominance, and self-recovery, ensuring robustness under repeated deformation. These results position vat-photopolymerized HEMA/HEA hydrogels as a versatile platform for multifunctional photonic devices, secure optical data storage, and adaptive materials.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"14 10","pages":""},"PeriodicalIF":7.2,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202503454","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567874","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
Long-Lived SiV− Center Induced by Nanosecond High-Voltage Pulse Discharge 纳秒级高压脉冲放电诱导的长寿命SiV中心
IF 7.2 2区 材料科学
Advanced Optical Materials Pub Date : 2026-03-12 Epub Date: 2026-02-03 DOI: 10.1002/adom.202503740
Helen Highland, Yifan Song, Sina Ilkhani, Emmalyn Song, Sizhe Weng, Stephen B. Cronin, Susumu Takahashi
{"title":"Long-Lived SiV− Center Induced by Nanosecond High-Voltage Pulse Discharge","authors":"Helen Highland,&nbsp;Yifan Song,&nbsp;Sina Ilkhani,&nbsp;Emmalyn Song,&nbsp;Sizhe Weng,&nbsp;Stephen B. Cronin,&nbsp;Susumu Takahashi","doi":"10.1002/adom.202503740","DOIUrl":"10.1002/adom.202503740","url":null,"abstract":"<div>\u0000 \u0000 <p>Defect and impurity centers in diamond can exist in multiple charge states. A notable example is a negatively and neutrally charged nitrogen-vacancy center in diamond, whose optical and spin properties are very different. Recent DFT studies show that an energetically favorable charge state can be controlled by adjusting the chemical potential of the diamond sample, which often requires significant materials engineering. This study presents an alternative approach for the control of charge states with the use of nanosecond high-voltage pulse discharges. We demonstrate the control of silicon-vacancy (SiV) centers in diamond. Using time-resolved photoluminescence (PL) spectroscopy measurement of the SiV centers with the application of nanosecond high-voltage pulses, we show the emergence of the negatively charged SiV<sup>−</sup> state. We also employ the time-resolved PL measurements and show that the population of the induced SiV<sup>−</sup> charge state decays exponentially, and the lifetime of the charge state is determined by 200–1100 ms. The observed long-lived charge state is potentially useful for applications based on the SiV<sup>−</sup> center. This method also paved the way to access various charge states of defect and impurity centers in diamond and wide-bandgap semiconductors.</p>\u0000 </div>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"14 10","pages":""},"PeriodicalIF":7.2,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147562768","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
Engineered Optical Fibers for Deep-Tissue Applications 用于深层组织的工程光纤
IF 7.2 2区 材料科学
Advanced Optical Materials Pub Date : 2026-03-12 Epub Date: 2026-03-05 DOI: 10.1002/adom.202502861
Yuzhen Li, Siyang Zheng, Wenzhao Li, Kai Chen, Tianting Zhong, Chi Man Woo, Weiran Pang, Chuqi Yuan, Xiaozhou Xiao, Xianguang Yang, Long Jin, Xiang Qian, Qiyao Tan, Changyuan Yu, Liwei Liu, Junle Qu, Puxiang Lai
{"title":"Engineered Optical Fibers for Deep-Tissue Applications","authors":"Yuzhen Li,&nbsp;Siyang Zheng,&nbsp;Wenzhao Li,&nbsp;Kai Chen,&nbsp;Tianting Zhong,&nbsp;Chi Man Woo,&nbsp;Weiran Pang,&nbsp;Chuqi Yuan,&nbsp;Xiaozhou Xiao,&nbsp;Xianguang Yang,&nbsp;Long Jin,&nbsp;Xiang Qian,&nbsp;Qiyao Tan,&nbsp;Changyuan Yu,&nbsp;Liwei Liu,&nbsp;Junle Qu,&nbsp;Puxiang Lai","doi":"10.1002/adom.202502861","DOIUrl":"10.1002/adom.202502861","url":null,"abstract":"<p>High-precision optical diagnostics and therapy in deep tissues are hindered by light scattering and absorption. Engineered optical fibers, serving as minimally invasive optical fibers, provide a powerful platform to bypass these barriers. This review systematically deconstructs the design of these advanced fibers from the unified perspectives of materials science and structural engineering. First, key material systems are analyzed—from traditional silica to emerging polymers and hydrogels—evaluating how their intrinsic properties dictate the fiber's optical performance, mechanical compliance, and biocompatibility. Then, critical structural paradigms are examined, including propagation modes, refractive index profiles, and core geometries, elucidating how these designs control features such as signal fidelity, resolution, and functional integration. The review further considers how the fiber's potential is amplified by auxiliary front-end physical modulation and back-end computational reconstruction techniques. Building on this foundational framework, the application of these engineered fibers is comprehensively surveyed in state-of-the-art biomedical diagnostics, such as endoscopic imaging and biosensing, and in targeted therapeutics, including optogenetics, phototherapies, and drug delivery. Ultimately, by systematically linking engineering principles to biomedical functions, this review establishes a foundational framework for designing next-generation, clinically focused fiber-optic systems, concluding with a critical assessment of prevailing challenges to illuminate future research directions in this burgeoning field\u0000.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"14 10","pages":""},"PeriodicalIF":7.2,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202502861","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563332","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
Recent Advances on Terahertz Wave Generation and Synchronous Control 太赫兹波产生与同步控制研究进展
IF 7.2 2区 材料科学
Advanced Optical Materials Pub Date : 2026-03-12 Epub Date: 2026-03-05 DOI: 10.1002/adom.202501920
Quan Xu, Yongchang Lu, Xi Feng, Qingwei Wang, Li Niu, Liyuan Liu, Xueqian Zhang, Jiaguang Han, Weili Zhang
{"title":"Recent Advances on Terahertz Wave Generation and Synchronous Control","authors":"Quan Xu,&nbsp;Yongchang Lu,&nbsp;Xi Feng,&nbsp;Qingwei Wang,&nbsp;Li Niu,&nbsp;Liyuan Liu,&nbsp;Xueqian Zhang,&nbsp;Jiaguang Han,&nbsp;Weili Zhang","doi":"10.1002/adom.202501920","DOIUrl":"10.1002/adom.202501920","url":null,"abstract":"<div>\u0000 \u0000 <p>Terahertz (THz) science and technology have demonstrated significant potential in a wide range of applications, including civil infrastructure, economic development, and military security. In recent years, both THz generation and control technologies have made remarkable progress, leading to the emergence of an interdisciplinary field, THz generation and synchronous control. In this review, we present an overview of the advancements in this area, with a particular emphasis on the multi-parameter modulation of THz waves, such as amplitude, phase, polarization, frequency, and wavefront, achieved through photonic approaches and advanced material engineering. These developments are critical for advancing the practical implementation of THz applications, as they can realize compact, multifunctional THz sources and thus significantly reduce the overall size and complexity.</p>\u0000 </div>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"14 10","pages":""},"PeriodicalIF":7.2,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563640","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
3D Microprinting of Structures with Lanthanide-Based Fluorophores on Optical Fibers for Multiplexed Sensing (Advanced Optical Materials 9/2026) 用于多路传感的光纤上镧系荧光团结构的3D微打印(Advanced Optical Materials 9/2026)
IF 7.2 2区 材料科学
Advanced Optical Materials Pub Date : 2026-03-07 DOI: 10.1002/adom.70992
Valese Aslani, Shaghayegh Baghapour, Stephen C. Warren-Smith, Wenqi Zhang, Esmat Ebadati, Sally E. Plush, Alois M. Herkommer, Andrea Toulouse, Shahraam Afshar V.
{"title":"3D Microprinting of Structures with Lanthanide-Based Fluorophores on Optical Fibers for Multiplexed Sensing (Advanced Optical Materials 9/2026)","authors":"Valese Aslani,&nbsp;Shaghayegh Baghapour,&nbsp;Stephen C. Warren-Smith,&nbsp;Wenqi Zhang,&nbsp;Esmat Ebadati,&nbsp;Sally E. Plush,&nbsp;Alois M. Herkommer,&nbsp;Andrea Toulouse,&nbsp;Shahraam Afshar V.","doi":"10.1002/adom.70992","DOIUrl":"10.1002/adom.70992","url":null,"abstract":"<p><b>3D Printing of Luminescent Microstructures</b></p><p>The Cover Picture shows four optical fibers with different luminescent microstructures fabricated directly onto the fiber tips using femtosecond direct laser writing (fs-DLW). Incorporating lanthanide complexes into commercial resists for fs-DLW combines sub-micrometer 3D structuring with the unique photophysical properties of lanthanides, establishing a new versatile platform for multiplexed fiber-based sensing that enables simultaneous detection of biochemical and physical parameters. More details can be found in the Research Article by Valese Aslani, Shahraam Afshar V., and co-workers (DOI: 10.1002/adom.202502989).\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":"14 9","pages":""},"PeriodicalIF":7.2,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.70992","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563918","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
High Gain-bandwidth Product MXene-Si-MXene vdW Photodetector for High Signal-to-Noise Ratio NIR Single-Pixel Imaging 用于高信噪比近红外单像素成像的高增益带宽产品MXene-Si-MXene vdW光电探测器
IF 7.2 2区 材料科学
Advanced Optical Materials Pub Date : 2026-03-07 Epub Date: 2025-05-05 DOI: 10.1002/adom.202500441
Chen Wang, Yunbo Lu, Haolan Xu, Jialu Xu, Xin Wang, Yaqi Zhao, Siyi Xie, Gaobin Xu, Yuanming Ma, Mengchao Ma, Yongqiang Yu
{"title":"High Gain-bandwidth Product MXene-Si-MXene vdW Photodetector for High Signal-to-Noise Ratio NIR Single-Pixel Imaging","authors":"Chen Wang,&nbsp;Yunbo Lu,&nbsp;Haolan Xu,&nbsp;Jialu Xu,&nbsp;Xin Wang,&nbsp;Yaqi Zhao,&nbsp;Siyi Xie,&nbsp;Gaobin Xu,&nbsp;Yuanming Ma,&nbsp;Mengchao Ma,&nbsp;Yongqiang Yu","doi":"10.1002/adom.202500441","DOIUrl":"10.1002/adom.202500441","url":null,"abstract":"<p>Emerging near-infrared (NIR) single-pixel imaging (SPI) technology presents a promising alternative to conventional imaging systems, offering cost efficiency and enhanced durability. The high gain bandwidth product (GBP) of the single-pixel photodetector (PD) is the primary requirement for high resolution and high imaging speed in SPI. Here, a novel MXene-Si-MXene van der Waals (vdW) metal-semiconductor-metal (MSM) PD, is demonstrated fabricated via a facile solution process. By incorporating a Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub></i> MXene film, the device exhibits a synergistic photogating effect, leading to an exceptional photogain of up to 7.2 × 10<sup>3</sup> and a GBP of up to 1.45 GHz under 850 nm illumination at a bias voltage of 2 V, outperforming most currently reported silicon-based detectors and even many commercial avalanche photodiodes (APDs). Significantly, the high-quality 512 × 512-pixel image is successfully achieved at an even 1% sampling rate without any additional filter circuitry by using the PD. The signal-to-noise ratio (SNR) of 72.3 dB is the highest value reported to date for SPIs and prior to some NIR array detectors. Thereafter, a high-quality reconstruction image is also obtained with a SNR of 32.1 dB in visible opaque light. This work paves the way for easy fabrication of high GBP PD for high-quality NIR SPI.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"14 9","pages":""},"PeriodicalIF":7.2,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563481","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
Electroluminescence and Franz–Keldysh Modulation Observed in Sn/Ge Multi-Quantum Wells Sn/Ge多量子阱中电致发光和Franz-Keldysh调制的观察
IF 7.2 2区 材料科学
Advanced Optical Materials Pub Date : 2026-03-07 Epub Date: 2026-01-29 DOI: 10.1002/adom.202503561
Michael Oehme, Damiano Marian, Maurice Wanitzek, Christian Spieth, Daniel Schwarz, Florian Bärwolf, Markus Andreas Schubert, Alwin Daus, Michele Virgilio, Giovanni Capellini
{"title":"Electroluminescence and Franz–Keldysh Modulation Observed in Sn/Ge Multi-Quantum Wells","authors":"Michael Oehme,&nbsp;Damiano Marian,&nbsp;Maurice Wanitzek,&nbsp;Christian Spieth,&nbsp;Daniel Schwarz,&nbsp;Florian Bärwolf,&nbsp;Markus Andreas Schubert,&nbsp;Alwin Daus,&nbsp;Michele Virgilio,&nbsp;Giovanni Capellini","doi":"10.1002/adom.202503561","DOIUrl":"10.1002/adom.202503561","url":null,"abstract":"<p>Thanks to their tunable electronic and optical properties, GeSn alloys have emerged as promising materials for next-generation silicon-compatible optoelectronic devices operating at extended near- to mid-infrared wavelengths. In this work, we experimentally and theoretically investigate the optoelectronic properties of p-type/intrinsic/n-type (PIN) diodes based on ultrathin α-Sn/Ge multiple quantum well (MQW) structures grown by molecular beam epitaxy with different Ge barrier thicknesses. Thorough structural analysis confirms the high crystalline quality of the MQW and clearly defined interfaces with Sn contents in the wells exceeding 4 at.%. Room-temperature electroluminescence measurements reveal two direct transitions: an MQW stack independent higher-energy emission, related to direct radiative recombination in intrinsic Ge, and a Ge barrier-dependent lower-energy peak, attributed to transitions involving weakly quantum-confined states, whose energy shifts with the barrier thickness in agreement with theoretical prediction. In line with this observation, the devices exhibit clear signatures of the Franz–Keldysh effect when operated as photodetectors, in a wavelength range extending well beyond the direct gap of Ge, as captured by theoretical modeling. These results demonstrate the potential of α-Sn/Ge MQWs as an integrable material platform for complementary metal—oxide–semiconductor (CMOS)-compatible electro-optical modulators spanning the near- to mid-infrared range.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"14 9","pages":""},"PeriodicalIF":7.2,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202503561","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570008","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
Leveraging Plasmonic Nanocavity Arrays Forming Metasurfaces to Boost Second Harmonic Generation Due to Surface Effects 利用等离子体纳米腔阵列形成超表面,以提高二次谐波产生的表面效应
IF 7.2 2区 材料科学
Advanced Optical Materials Pub Date : 2026-03-07 Epub Date: 2026-01-30 DOI: 10.1002/adom.202502906
Sky Semone, Matthew J. Brandsema, Thang Hoang, Christos Argyropoulos
{"title":"Leveraging Plasmonic Nanocavity Arrays Forming Metasurfaces to Boost Second Harmonic Generation Due to Surface Effects","authors":"Sky Semone,&nbsp;Matthew J. Brandsema,&nbsp;Thang Hoang,&nbsp;Christos Argyropoulos","doi":"10.1002/adom.202502906","DOIUrl":"10.1002/adom.202502906","url":null,"abstract":"<div>\u0000 \u0000 <p>Plasmonic metasurfaces have emerged as a promising platform for enhancing a range of nonlinear optical processes, offering compact geometry and flexibility in light manipulation. Second-order nonlinear processes, like second harmonic generation (SHG), typically require non-centrosymmetric crystals to be realized. Here, we experimentally demonstrate enhanced SHG response by using a gold nanocavity array forming a plasmonic metasurface absorber where titanium dioxide (TiO<sub>2</sub>), a centrosymmetric dielectric material, with subwavelength thickness, is deposited in the realized nanogaps. While such a dielectric material has an extremely low second-order nonlinear susceptibility, we observe 10<sup>5</sup>-fold boosting in the nonlinear SHG process mainly due to the surface nonlinear susceptibility of the gold metal, aided by the significant electric field enhancement that occurs in the nanogaps due to the formed nanocavity resonance. The experimental results obtained are theoretically explained with extensive and rigorous nonlinear simulations that consider all the bulk and surface linear and nonlinear material properties. The presented robust harmonic generation from an ultrathin plasmonic metasurface can be used in nonlinear and quantum integrated photonic applications.</p>\u0000 </div>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"14 9","pages":""},"PeriodicalIF":7.2,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570134","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
Development of High-Performance Multilayer Monochromators 高性能多层单色仪的研制
IF 7.2 2区 材料科学
Advanced Optical Materials Pub Date : 2026-03-07 Epub Date: 2025-08-07 DOI: 10.1002/adom.202501312
Wadwan Singhapong, Arindam Majhi, Wai Jue Tan, Vishal Dhamgaye, Riley Shurvinton, Paresh Pradhan, Igor Dolbnya, Lucia Alianelli, Chris Bowen, Alexander J. G. Lunt, Hongchang Wang, Kawal Sawhney
{"title":"Development of High-Performance Multilayer Monochromators","authors":"Wadwan Singhapong,&nbsp;Arindam Majhi,&nbsp;Wai Jue Tan,&nbsp;Vishal Dhamgaye,&nbsp;Riley Shurvinton,&nbsp;Paresh Pradhan,&nbsp;Igor Dolbnya,&nbsp;Lucia Alianelli,&nbsp;Chris Bowen,&nbsp;Alexander J. G. Lunt,&nbsp;Hongchang Wang,&nbsp;Kawal Sawhney","doi":"10.1002/adom.202501312","DOIUrl":"10.1002/adom.202501312","url":null,"abstract":"<p>Multilayer monochromators are crucial optical elements for monochromatizing intense X-ray beams in applications demanding high photon flux with moderate energy resolution. Achieving high-performance multilayer monochromators requires optimizing multilayer parameters, using high-quality substrates, and precisely controlling the deposition process to ensure high reflectivity and eliminate stripe artifacts. This paper presents the design and development, and characterization of double multilayer monochromators (DMM). These coatings are deposited using an optimized mask design to ensure &lt;0.3% sagittal thickness uniformity and employing reactive sputtering in nitrogen gas (N<sub>2</sub>) - to enhance multilayer reflectivity. A high reflectivity of 88.7% at 14.0 keV and 85.6% at 22.4 keV is achieved. Furthermore, stripe-free imaging is achieved in double-reflection geometry via the use of high-quality substrates produced using the in-house ion beam figuring machine. These findings offer valuable insights for developing high-performance DMMs, paving the way for the next generation of synchrotron optics and instruments.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"14 9","pages":""},"PeriodicalIF":7.2,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202501312","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563688","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
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