Results 191 to 200 of about 1,127,134 (301)

Nanoimprinting of Mesoporous Titania: Direct Patterning and Refractive Index Control in the Visible

open access: yesAdvanced Optical Materials, EarlyView.
Nanoimprinted mesoporous TiO₂ (pTiO₂) films are demonstrated as high‐resolution optical materials with tunable porosity, refractive index, and mechanical response. Sub‐micron patterning of planar optics is shown alongside a refractive index contrast Δn ≈0.7.
Matthew Panipinto   +4 more
wiley   +1 more source

Non‐Reciprocal Terahertz Topological Sensor on a Silicon Chip

open access: yesAdvanced Optical Materials, EarlyView.
A non‐reciprocal terahertz topological sensor (NTTS) is experimentally demonstrated on a silicon valley photonic crystal chip by detecting the thickness and position changes of a polyimide membrane. The sensor exploits detuning between clockwise and counterclockwise topological cavity modes, induced by integrated magneto‐optical InSb, to achieve non ...
Ridong Jia, Ranjan Singh
wiley   +1 more source

Chiroptical Amplification Beyond Enantiopurity in Chiral Films

open access: yesAdvanced Optical Materials, EarlyView.
Nonlinear g‐ee dependence in chiral perovskite thin films is demonstrated, revealing amplified chiroptical responses and offering a sensitive probe into chiral applications. This behavior, rarely investigated as it is, is crucial for sensitive enantiomeric sensing and provides insights into chirality mechanisms, as well as structural ordering, offering
Charitini Panagiotopoulou   +5 more
wiley   +1 more source

Coherent Control of Thermal Radiation with Nanophotonics

open access: yesAdvanced Photonics Research, EarlyView.
This review explores the innovative control of thermal radiation coherence using nanophotonic structures. The fundamentals of thermal radiation, coherence control strategies (temporal, spatial, and polarization), and their applications in infrared sensing, radiative cooling, thermal camouflage, and imaging, are discussed.
Yuanrong Zhang   +4 more
wiley   +1 more source

Coupling Enhanced Diffractive Deep Neural Network with Structural Nonlinearity

open access: yesAdvanced Photonics Research, EarlyView.
Here, structural nonlinearity is introduced into diffractive deep neural networks (D2NNs) by incorporating encoding‐free data repetition layers, enabling high‐order optical nonlinearity while reducing the system complexity. Additionally, to enhance the design accuracy of D2NNs, a graph neural network is developed to characterize the coupling effects ...
Ouling Wu   +5 more
wiley   +1 more source

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