Simultaneous observation of bright and dark polariton states in subwavelength gratings made from quasi-bulk WS2 [0.03%]
准本征WS2制备的亚波长光栅中宽带亮暗极化激子态的同步探测研究
Paul Bouteyre,Xuerong Hu,Sam A Randerson et al.
Paul Bouteyre et al.
We present here a variety of 1D grating structures composed of bulk transition metal dichalcogenide (TMD) WS2 as a highly tunable and versatile platform for observation of a multi-level polaritonic system.
Jie Chen,Wei Wei,Haiyan Peng et al.
Jie Chen et al.
Herein, we report a breakthrough by spatially confining the initiation function, enabling the unprecedentedly rapid formation of predesigned submicron-ordered grating structures within merely 0.75 s under visible light holographic exposure....This approach is highly versatile, facilitating the fabrication of both transmission- and reflection-type volume holographic grating structures starting from various reaction systems, and the refractive index modulation can be as high as 0.10, enabling ultraefficient manufacturing of waveguide combiners
Precisely Control Light Field by the Grating-Structured Nanoimprinting Technology Toward High-Efficiency Perovskite Solar Cells [0.03%]
通过纳米压印光栅结构技术精确控制光场以实现高效钙钛矿太阳能电池
Xinwen Zhang,Zemin Zhang,Ruixiao Wang et al.
Xinwen Zhang et al.
Herein, the impact of grating structures on PSCs is systematically investigated from three aspects, including light field simulation, experimental verification, and performance analysis....Experimental validation confirms that the grating structures significantly enhance light absorption of PSCs, leading to increasing the short-circuit current density from 23.89 to 25.38 mA cm-2 and improving the PCE from 22.45% to 24.63%....Overall, the work highlights the enormous potential of grating structures in enhancing the PCE of ultrathin PSC (PVK under 500 nm) and decreasing the cost simultaneously, which provides a way for the commercialization of efficient and stable PSCs.
Poster Session: Geometric phase multifocal ophthalmic lenses for presbyopics [0.03%]
用于老花眼的几何相多重焦点眼科透镜的海报演讲
Sunil Kumar Chaubey,Brian Vohnsen
Sunil Kumar Chaubey
The lens is formed with liquid crystals grating structures act as a converging lens for right-handed circularly polarized light and a diverging lens for left-handed circularly polarized light resulting in positive and negative defocus for unpolarized incident light.
Xuetong Zhou,Ying Xue,Hanke Feng et al.
Xuetong Zhou et al.
The unprecedented wide optical bandwidth is achieved without using bottom metal reflectors or the etching of grating structures on the lithium niobate material.
3D-architected gratings for polarization-sensitive, nature-inspired structural color [0.03%]
受大自然启发的极化敏感结构色的3D结构光栅
Moisés H Ibarra Miranda,Lars W Osterberg,Dev H Shah et al.
Moisés H Ibarra Miranda et al.
Herein, we systematically study anisotropic, 3D-architected grating structures with polarization-tunable optical properties, inspired by the vivid blue of Morpho butterfly wings.
Buried Grating Enables Fast Response Self-Powered Polarization-Sensitive Perovskite Photodetectors for High-Speed Optical Communication and Polarization Imaging [0.03%]
埋藏光栅实现快速响应的自供能偏振敏感钙钛矿光电探测器应用于高速光通讯和偏振成像
Yuxuan Sun,Jiang Wang,Jingjing Liu et al.
Yuxuan Sun et al.
Herein, a self-powered PSPPD with buried grating structures induced by ultrafast laser direct writing is designed. Remarkably, polarization detection can be achieved without the assistance of conventional optical and mechanical structures....Notably, the raising/falling time is less than 2 µs, which is one of the shortest response times among PSPPDs with grating structures to the best of this knowledge.
Jiaqi Wang,Guoxian Wu,Si Chen et al.
Jiaqi Wang et al.
Subwavelength grating structures are widely used in integrated optical devices due to their compact footprints and flexible refractive index tailoring. In this paper, we present a subwavelength grating (SWG) coupler for a 70-nm-thick silicon waveguide without the upper cladding.
Coexistence of the Radial-Guided Mode and WGM in Azimuthal-Grating-Integrated Microring Lasers [0.03%]
集成方位光栅的微环激光器中的径向模式和WGM共存现象
Jinghan Chen,Abdul Nasir,Adrian Abazi et al.
Jinghan Chen et al.
The introduction of curved grating structures facilitates guided mode resonances by coupling high-order diffracted waves with leaking modes from the waveguide. These gratings act as wavelength-selective mirrors and support concentric circular radial-guided modes.
Strong coupling between WS2 monolayer excitons and a hybrid plasmon polariton at room temperature [0.03%]
在室温下二硫化钨单层激子与杂化等离极化激元强耦合
Yuhao Zhang,Hans-Joachim Schill,Stephan Irsen et al.
Yuhao Zhang et al.
Here, we report on a room-temperature study on the interaction of tungsten disulfide (WS2) monolayer excitons with a hybrid plasmon polariton (HPP) mode supported by nanogroove grating structures milled into single-crystalline silver flakes....The possibility to balance the field confinement and losses render nanogroove grating structures an attractive platform for future applications.
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