Results 111 to 120 of about 87,331 (315)

Photonic Nanomaterials for Wearable Health Solutions

open access: yesAdvanced Materials, EarlyView.
This review discusses the fundamentals and applications of photonic nanomaterials in wearable health technologies. It covers light‐matter interactions, synthesis, and functionalization strategies, device assembly, and sensing capabilities. Applications include skin patches and contact lenses for diagnostics and therapy. Future perspectives emphasize AI‐
Taewoong Park   +3 more
wiley   +1 more source

Replica grating study Interim report, 1 Jul. - 31 Dec. 1967 [PDF]

open access: yes
Thermal-vacuum stressing of replica diffraction ...
Gunter, R. C., Jr.
core   +1 more source

THz‐Driven Coherent Phonon Fingerprints of Hidden Symmetry Breaking in 2D Layered Hybrid Perovskites

open access: yesAdvanced Materials, EarlyView.
Intense THz pulses are employed to drive coherent phonons in 2D Ruddlesden‐Popper hybrid metal‐halide perovskites (HOIPs) from the (PEA)2(MA)n‐1PbnI3n+1 family, revealing mode‐selective spectroscopic signatures of inversion symmetry breaking in those nominally centrosymmetric materials. These findings provide a handle to decode nonlinear phonon driving
Joanna M. Urban   +14 more
wiley   +1 more source

Overcoming Material Incompatibility via 2D Free‐Surface Engineering

open access: yesAdvanced Materials, EarlyView.
A scalable post‐epitaxial strategy introduces a sub‐nanometric 2D free surface (2DFS) at the heterointerface, effectively decoupling lattice‐mismatched layers. This process significantly reduces strain‐driven defects and dislocation density in Ge/Si heterostructures. The resulting bulk‐like material quality, validated by advanced microscopy and optical
Youcef A. Bioud   +9 more
wiley   +1 more source

Laser Nanostructuring for Diffraction Grating Based Surface Plasmon-Resonance Sensors. [PDF]

open access: yesNanomaterials (Basel), 2021
Gnilitskyi I   +6 more
europepmc   +1 more source

Fractal Diffraction Grating

open access: yes, 1998
We consider an optical diffraction grating in which the spatial distribution of open slits forms a fractal set. The Fraunhofer diffraction patterns through the fractal grating are obtained analytically for the simplest triad Cantor type and its generalized version. The resulting interference patterns exhibit characteristics of the original fractals and
Bak, Dongsu   +4 more
openaire   +2 more sources

Micro‐Strain Responsive Near‐Infrared Mechanoluminescence for Potential Nondestructive Artificial Joint Stress Imaging

open access: yesAdvanced Materials, EarlyView.
In situ and real‐time stress sensing during total knee replacement procedure is expected to be realized based on near‐infrared mechanoluminescent phosphor of Sr3Sn1.98Sb0.02O6.99, which has the lowest strain sensitivity as low as 50 µst. Abstract Recently, joint replacement surgery is facing significant challenges of patient dissatisfaction and the ...
Wenhao Li   +9 more
wiley   +1 more source

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