Results 71 to 80 of about 495 (163)

Stimuli‐Responsive Hydrogels for Optical Applications: Mechanisms, Architectures, and Translational Challenges

Aggregate, Volume 7, Issue 6, June 2026.
The review discusses stimuli‐responsive hydrogels as soft optical materials that translate physical, chemical, and biological cues into refractive‐index, scattering, birefringence, diffraction, and transparency changes. It examines major stimulus classes and photonic architectures for biosensing, waveguiding, adaptive lenses, smart windows, and therapy.
Andrés Bernal‐Ballén, Alexandr Dejneka, Oleg Lunov   +2 more
wiley   +1 more source

Low‐Dose Electron Total Scattering Analysis Resolves Non‐Crystalline Phase Separation in Polymer Semiconductors and Device Multilayers

Small Methods, Volume 10, Issue 11, 8 June 2026.
The performance of polymer blend semiconductors is governed by both the degree of phase separation and crystallization, but these two aspects have remained unresolved. We report methods for mapping amorphous‐amorphous as well as amorphous‐crystalline phase separation in polyfluorene‐based polymer blends using spatially resolved nanobeam electron total ...
Sang T. Pham, Adam F. Sapnik, Sean M. Collins   +2 more
wiley   +1 more source

Advanced fiber optic sensors for quantitative nitrite detection: Comparative analysis of plasmonic tilted fiber Bragg gratings and fiber optic tips with ion-imprinted polymers

Sensors and Actuators Reports
The presence of nitrite, a prevalent contaminant in natural environments, presents a significant environmental and human health concern. Hence, it is imperative to develop a sensor with the ability to quantitatively detect nitrite.
Xuecheng Liu, Ragini Singh, Bingyuan Zhang, Christophe Caucheteur, Nuno Santos, Santosh Kumar, Jan Nedoma, Carlos Marques   +7 more
doaj   +1 more source

Fast and slow light in optical fibers through tilted fiber Bragg gratings

Optics Express, 2009
In this paper, slow and fast light in optical fiber through tilted fiber Bragg grating (TFBG) are reported. The experimental results show the capability of TFBGs to enable group velocity control of an optical pulse in optical fiber, due to the anomalous dispersion features induced by the coupling between the propagating core mode and each counter ...
Pisco, Marco, Ricciardi, Armando, CAMPOPIANO, Stefania, Caucheteur, Christophe, Mégret, Patrice, Cutolo, Antonello, Cusano, Andrea   +6 more
openaire   +4 more sources

Biosensors with tilted fiber Bragg gratings for virus detection

International Journal of Innovative Research and Scientific Studies
Optoelectronic technologies play a crucial role in medical diagnostics, especially in the detection of viruses. Infectious diseases caused by viruses pose a serious threat to humanity, as they can spread rapidly, leading to significant loss of life.
Gulzhan Kashaganova, Kulzhan Togzhanova, Talgat Kulazhanov, Baurzhan Nurakhmetov, Ainur Kozbakova   +4 more
openaire   +1 more source

Compact Optical Fiber 3D Shape Sensor Based on a Pair of Orthogonal Tilted Fiber Bragg Gratings. [PDF]

Sci Rep, 2015
Feng D, Zhou W, Qiao X, Albert J.
europepmc   +1 more source

Accelerating photonic gas sensor design: machine learning-driven inverse optimization of silicon photonics Bragg gratings. [PDF]

Sci Rep
Khafagy M, Khafagy M, Swillam MA.
europepmc   +1 more source

Composite fiber Bragg grating written by femtosecond laser for Raman suppression in high-power fiber oscillators. [PDF]

Front Optoelectron
Li H, Zhao R, Rao B, Ye X, Yang B, Wang M, Li Z, Chen Z, Wang Z, Chen J.   +9 more
europepmc   +1 more source

Temperature and Strain Characterization of Tapered Fiber Bragg Gratings. [PDF]

Sensors (Basel)
de Moura CC, de Oliveira V, Kalinowski HJ, Biazoli CR.   +3 more
europepmc   +1 more source

Electrical Modification of Self-Assembled Polymer-Stabilized Periodic Microstructures in a Liquid Crystal Composite. [PDF]

Polymers (Basel)
Chychłowski MS, Kajkowska M, Bolek J, Gridyakina O, Bartosewicz B, Jankiewicz B, Lesiak P.   +6 more
europepmc   +1 more source