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Reactive Magnetron Sputtering of Large‐Scale 3D Aluminum‐Based Plasmonic Nanostructure for Both Light‐Induced Thermal Imaging and Photo‐Thermoelectric Conversion

An Al/AlN plasmonic nanostructure is fabricated by a reactive magnetron sputtering method. The unique 3D nanostructure exhibits excellent light-trapping properties due to the excitation of localized surface plasmon resonances and multiple reflections. As a result, excellent light-induced thermal imaging and photo-thermoelectric conversion are achieved,...

Direct Current Piezoelectric Energy Harvesting Based on Plasmon‐Enhanced Solar Radiation Pressure

The solar light pressure is amplified and applied to a piezoelectric material to obtain an average current of 2.86 µA and a voltage of 242 mV. The name of the device is light pressure electric generator. The device is made into a crater structure by etching the GaAs wafer, and subsequently lead zirconate titanate and metals are deposited. Among metals,...

Role of the Intramolecular‐Locking Strategy in the Construction of Organic Thermally Activated Delayed Fluorescence Emitters with Rotation‐Restricted Acceptors

As one of the important fragments for thermally activated delayed fluorescence (TADF) emitters, the development of acceptor units with rigid structure deserves in-depth understanding. Herein, a comprehensive summary of the design and development of rigid TADF acceptors with “intramolecular locks” including covalent bonds, coordination bonds, and non-covalent...

Ultrasensitive Detection and Cellular Photothermal Therapy via a Self‐Photothermal Modulation Biosensor

Light is a powerful tool for imaging and sensing, as well as a prospective strategy in tumor treatment. A nanointerface is designed on an optical microfiber to fabricate a sensor with well-distributed plasmonic hotspot enhancement. The sensor exhibits a temperature-tunable sensitivity and self-photothermal modulation function, presenting a potential...

Anharmonic Exciton‐Phonon Coupling in Metal‐Organic Chalcogenides Hybrid Quantum Wells

Hybrid quantum wells based on metal-organic chalcogenides (MOCs) host tightly bound 2D excitons in a bulk crystal. The exciton dynamics can be visualized with transient absorption signals whose temporal oscillations reveal coherent exciton-phonon coupling. This work demonstrates the anharmonic behavior of the low-energy optical phonons and their impact...

Generation of the Planar Solitons Using Thermal Trapping of a Disclination in Nematic Liquid Crystals and Their Applications

A thermal laser tweezer is introduced to trap and move a disclination under the low anchoring condition, which enables us to generate solitons as if they were drawn and to control them actively. To demonstrate potential applications of the solitons, microsized cargo delivery and polarization diffraction gratings are presented and prove the applicability...

Non‐Equilibrium Bose–Einstein Condensation of Exciton‐Polaritons in Silicon Metasurfaces

The first demonstration of a room-temperature polariton condensate on an all-dielectric metasurface is presented. Thanks to the engineered low radiative losses of the silicon metasurface, and the efficient relaxation of the dye, a condensate is observed at the low threshold of P th = 8.2 µJ cm−2. The presence of radiative pumping allows to tune the...

Intrinsically Synchronized Flexible Visuo‐Haptic Device Operated by Single External Electric Field

A flexible synchronized visuo-haptic device is presented. The device is based on electrovibration for haptic expression and on alternating-current electroluminescence for optical expression. The two expressions are intrinsically coupled by single electric field via electric field modulation. Abstract Providing multisensory expression in a synchronized...

Low‐Symmetry α‐MoO3 Heterostructures for Wave Plate Applications in Visible Frequencies

Using polarizer-analyzer spectroscopy and a coded powerful simulator, α-MoO3 is identified as a strong retarder in the visible. Quarter- and half-wave plate actions are reported with α-MoO3 flakes at green (532 nm) and red (633 nm) wavelengths. Implementing a twist-optics design composed of twisted double α-MoO3 heterostructures, polarization tuning...

On‐Chip Metaline for Multiport Beam Splitting

An on-chip beam splitting method, which combines the phase profiles optimized by the Dammann method with lens factor to achieve the function, based on a 1D metasurface, termed as metaline, is proposed and experimentally demonstrated. Such device has great potential in wide applications such as signal processing, on-chip laser modulation, and on-chip...

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