Results 41 to 50 of about 11,966 (239)
Metasurface Freeform Nanophotonics [PDF]
Scientific Reports, 2017 AbstractFreeform optics aims to expand the toolkit of optical elements by allowing for more complex phase geometries beyond rotational symmetry. Complex, asymmetric curvatures are employed to enhance the performance of optical components while minimizing their size.
Alan Zhan +3 more
openaire +4 more sources
Advanced Materials, EarlyView.Vacuum‐assisted capillary infiltration delivers perovskite precursors deep into gold nanohole plasmonic hotspots, enabling uniform in situ crystallization of bulk‐like CsPbBr3 within confined cavities. Verified by peel‐off and structural analyses, the hybrid platform shows simulated |E/E₀| ≈2.80 at 800 nm and ∼40‐fold two‐photon absorption‐enhanced ...
Jung‐Jae Do +8 more
wiley +1 more source
Known-Plaintext Attack and Ciphertext-Only Attack for Encrypted Single-Pixel Imaging
IEEE Access, 2019 In many previous works, a single-pixel imaging (SPI) system has been constructed as an optical image encryption system. Unauthorized users are not able to reconstruct the plaintext image from the ciphertext intensity sequence without knowing the ...
Shuming Jiao +4 more
doaj +1 more source
In Vivo Optofluidic Switch for Controlling Blood Microflow
Advanced Science, 2020 Control of blood microflow is crucial for the prevention and therapy of blood disorders, such as cardiovascular diseases and their complications. Conventional control strategies generally implant exogenous synthetic materials into blood vessels as ...
Xiaoshuai Liu +4 more
doaj +1 more source
Optical Fiber Tweezers: A Versatile Tool for Optical Trapping and Manipulation
Micromachines, 2020 Optical trapping is widely used in different areas, ranging from biomedical applications, to physics and material sciences. In recent years, optical fiber tweezers have attracted significant attention in the field of optical trapping due to their ...
Xiaoting Zhao +4 more
doaj +1 more source
Nanophotonic computational design
Optics Express, 2013 In contrast to designing nanophotonic devices by tuning a handful of device parameters, we have developed a computational method which utilizes the full parameter space to design linear nanophotonic devices. We show that our method may indeed be capable of designing any linear nanophotonic device by demonstrating designed structures which are fully ...
Lu, Jesse, Vuckovic, Jelena
openaire +3 more sources
Field‐Programmable Mobile Magneto‐Photonic Metaparticles for Active Light Manipulation and Steering
Advanced Materials, EarlyView.We report magneto‐photonic metaparticles that integrate magnetic actuation with nanoimprinted metagratings, enabling mobile and programmable beam steering in aqueous environments. This platform achieves real time, directional light control beyond static or line‐of‐sight systems, while remaining compatible with scalable fabrication, providing a ...
Seung Yeol Lee, Yujie Luo, Ognjen Ilic
wiley +1 more source
Ultrashort pulse biphoton source in lithium niobate nanophotonics at 2 μm
NanophotonicsPhotonics offers unique capabilities for quantum information processing (QIP) such as room-temperature operation, the scalability of nanophotonics, and access to ultrabroad bandwidths and consequently ultrafast operation.
Williams James +6 more
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Nanophotonics for pair production
Nature Communications, 2023 AbstractThe transformation of electromagnetic energy into matter represents a fascinating prediction of relativistic quantum electrodynamics that is paradigmatically exemplified by the creation of electron-positron pairs out of light. However, this phenomenon has a very low probability, so positron sources rely instead on beta decay, which demands ...
Valerio Di Giulio +1 more
openaire +4 more sources
Giant Anisotropy and High Second‐Order Nonlinearity of 3R‐MoS2 for Multifunctional Photonics
Advanced Materials, EarlyView.Graphical abstract highlights, 3R‐polytype of MoS2 (3R‐MoS2) as a multifunctional photonic platform enabled by giant optical anisotropy and optical nonlinearities, demonstrating subdiffractional waveguiding, giant second‐harmonic (SH) generation, and high‐performance reflective polarization control.
Georgy Ermolaev +17 more
wiley +1 more source