Results 141 to 150 of about 292,649 (389)

Residual strain monitoring during composite manufacturing [PDF]

open access: yes, 2012
This work explores a new possibility in accurate measurement of multi-axial residual strains during the production of composite structures. It investigates the usability of the polarization dependent loss (PDL) of an optical fibre Bragg grating as a ...
Caucheteur, Christophe   +5 more
core   +1 more source

In-Situ Monitoring of Changes in Temperature and Microstrain During the Chemical Corrosion of Stone Cultural Relics by Fiber Bragg Gratings

open access: green, 2023
Huihua Wu   +12 more
openalex   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

open access: yesAdvanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik   +7 more
wiley   +1 more source

Exposed core microstructured optical fiber Bragg gratings: refractive index sensing.

open access: yesOptics Express, 2014
Bragg gratings have been written in exposed-core microstructured optical fibers for the first time using a femtosecond laser. Second and third order gratings have been written and both show strong reflectivity at 1550 nm, with bandwidths as narrow as 60 ...
S. Warren-Smith, T. Monro
semanticscholar   +1 more source

From Rigid to Soft Robotic Approaches for Neuroendoscopy

open access: yesAdvanced Robotics Research, EarlyView.
Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday   +3 more
wiley   +1 more source

Fiber Bragg gratings for low-temperature measurement.

open access: yesOptics Express, 2014
We demonstrate the use of fiber Bragg gratings (FBGs) as a monolithic temperature sensor from ambient to liquid nitrogen temperatures, without the use of any auxiliary embedding structure. The Bragg gratings, fabricated in three different types of fibers
Elton Soares de Lima Filho   +3 more
semanticscholar   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

open access: yesAdvanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett   +5 more
wiley   +1 more source

Exact bidirectional X-wave solutions in fiber Bragg gratings

open access: yes, 2017
We find exact solutions describing bidirectional pulses propagating in fiber Bragg gratings. They are derived by solving the coupled-mode theory equations and are expressed in terms of products of modified Bessel functions with algebraic functions ...
Christodoulides, Demetrios N.   +2 more
core   +1 more source

Solitary waves in plasmonic Bragg gratings [PDF]

open access: green, 2007
Ildar R. Gabitov   +3 more
openalex   +1 more source

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