The subject of this ph.d. thesis was the development of an electrically switchable Bragg grating made in an optical waveguide using thermal poling to be applied within optical telecommunication systems. The planar waveguides used in this thesis were fabricated at the Micro- and Nanotechnology Research Center (MIC) at the Technical University of Denmark.
openaire +1 more source
Nanostructuring Copper Tungstate Photoanodes: Performance Enhancement and Fundamental Limitations
Nanostructuring of CuWO4 photoanodes yields a ~ tenfold photocurrent enhancement compared to dense films, reaching 0.6 mA cm−2 at 1.23 V versus reversible hydrogen electrode, among the best values reported for this material. Yet, performance remains far below the theoretical limit due to severe bulk recombination and poor electron transport ...
Oliver Mendoza Reyes +3 more
wiley +1 more source
Correction: A novel numerical investigation of fiber Bragg gratings with dispersive reflectivity having polynomial law of nonlinearity. [PDF]
Tariq H +6 more
europepmc +1 more source
Online Gamma Radiation Monitoring Using Few-Mode Polymer CYTOP Fiber Bragg Gratings. [PDF]
Chapalo I +7 more
europepmc +1 more source
Evaluation of prestress losses in concrete beams using destructive and non‐destructive methods
Abstract Over the past few decades, prestressing techniques have become essential in the construction of key structures, infrastructure, and bridges. The serviceability and safety of prestressed concrete (PC) elements are closely tied to the effectiveness of the prestressing process.
A. N. Consiglio, G. Muciaccia, G. Rosati
wiley +1 more source
Recent Advances in Ultra-Weak Fiber Bragg Gratings Array for High-Performance Distributed Acoustic Sensing (Invited). [PDF]
Wang Y +8 more
europepmc +1 more source
Three-dimensional catheter tip force sensing using multi-core fiber Bragg gratings. [PDF]
Al-Ahmad O +4 more
europepmc +1 more source
Integrated chirped Bragg gratings with control over complex reflectivity [PDF]
Sorel, M., Strain, M.J.
core +1 more source
Modeling and Simulation of Fiber Bragg Grating (FBG) as a Strain Sensor for in Vivo Body Monitoring
Muhammad Arif Bin Jalil
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ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang +4 more
wiley +1 more source

