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Advanced Damage Detection though Optical sensor Network

Impact of -rays Irradiation on Hybrid TiO2-SiO2 Sol-Gel Films Doped with RHODAMINE 6G

In the present paper, we investigate how the optical and structural properties, in particular the observed photoluminescence (PL) of photocurable and organic-inorganic TiO2-SiO2 sol-gel films doped with Rhodamine 6G (R6G) are affected by -rays. For this, four luminescent films, firstly polymerized with UV photons (365 nm), were submitted to different accumulated doses of 50 kGy,…
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Due to the coronavirus pandemic (Covid-19), we had to make the decision to postpone the RADOPT 2020. The conference RADOPT 2021 will take place on-site in November 2021 (15th-18th) With best regards, RADOPT 2021 Organizing Committee. Radiation Effects on optical devices –

Comparison between the UV and X-ray Photosensitivities of Hybrid TiO2-SiO2 Thin Layers

The photo-induced effects on sol–gel-based organo TiO2-SiO2 thin layers deposited by the dip-coating technique have been investigated using two very different light sources: A light-emitting diode (LED) emitting in the UV (at 365 nm, 3.4 eV) and an X-ray tube producing 40 keV mean-energy photons. The impact of adding a photo-initiator (2,2-dimethoxy-2-phenylacetophenone-DMPA) on the sol–gel photosensitivity…
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Sol–Gel Waveguide-Based Sensor for Structural Health Monitoring on Large Surfaces in Aerospace Domain

The potential of sol–gel-based optical sensors is investigated for applications in the aerospace domain. To this aim, a low-cost and non-intrusive sol–gel sensor based on waveguides, arranged as a 2D matrix structure, is fabricated by UV photolithography for delamination and damage detection. Two different organic–inorganic sol–gels were selected to fabricate the photonic device: TiO2–SiO2 and ZrO2–SiO2, acting…
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High-Speed Multiplexed Fiber Optic Sensing for Extreme Dynamic Loading Events

Authors: J. Mertes, M. Haverdings, R.Evenblij, Technobis Composite structures comprise large parts of modern aircrafts, as they are low in weight in provide strength superior to commonly used metallic structures. However, the complexity of the material demands for novel Structural Health Monitoring (SHM) techniques in order to accurately monitor the state of the material and…
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Multifunctional pic-based SHM equipment for Aerospace

Author: R. Evenblij, Technobis For Aerospace environments, sensor data and sensing systems are commonplace. Aircraft owners depend on those sensors, systems and signals to provide real-time structural health monitoring, supporting operational awareness and decision making, and to predict future behavior. Analysis methods in SHM more and more tend to explore monitoring approaches based on analysis…
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Extreme fiber sensing capabilities for composite materials in aerospace

Author: J. Mertes, M. Haverdings, R. Evenblij, Technobis This work describes the use of a high-speed fiber optic interrogation unit based on integrated photonics in structural health monitoring. It overcomes the limitations of other high-speed interrogators with respect to dynamic range by employing a small scale demultiplexed interferometer. The interferometer is combined with another chip-based…
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A RADECS Workshop on Radiation Effects on Optoelectronic and Photonics Technologies. This workshop will demonstrate a variety of studies related to radiations and photonic devices and technologies: image sensors, fibers and fiber sensors, photonic integrated circuits, silicon photonics, optoelectronic components.… and discuss the challenges regarding definition of qualification tests, new radiation effects. To promote this…
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ISROS 2019 – International Symposium on Reliability of Optoelectronics System The next International Symposium on Reliability of Optoelectronics for Systems (ISROS) will be held on 26-29th November in Toulouse, France. The symposium will feature a series of invited talks, contributed talks, several technical sessions including a poster session and an industrial exhibit.

ISROS’19 (WP3)

Oral Talk @ ISROS’19 (WP3) Parametric study on the manufacturing parameters of sol-gel optical waveguides for sensing by M. Royon