Optical charactcrisation of a Ncphila edulis spider dragline silk is performed. The silk fiber transmits light up to 1400 nm with a propagation loss of-9 dB/cm and birefringence of8xlO-3 measured at 1302 nm.
Whilst being thoroughly used in the textile industry and biomedical sector, silk has not yet been exploited for fibre optics-based sensing although silk fibres directly obtained from spiders can guide light and have shown early promises to being sensitive to some solvents. In this communication, a pioneering optical fibre sensor based on spider silk is… (More)
—From the spider's perspective, silk is not only a building material but also a safety net, a weapon and a sensory organ to detect the presence of preys on its web. Indeed, this primeval material has been shaped over hundreds of millions of years by spiders to create a myriad of silk fibre types with different level of toughness, elasticity, stickiness… (More)
I hide my tears when I say your name, But the pain in my heart is still the same. In loving memory of Mom and Aunty.. . Acknowledgements Throughout these years as a doctoral student in Switzerland I had the great privilege of learning new things, sharing knowledge and experiencing delightful moments with wonderful people to whom my sincere gratitude goes… (More)
Recent studies propose that some dynamical systems, such as climate, ecological and financial systems, among others, present critical transition points named to as tipping points (TP). Climate TPs can severely affect millions of lives on Earth so that an active scientific community is working on finding early warning signals. This paper deals with the… (More)
Keywords: Space systems Remote sensing Natural disaster prevention Space solar power Tropical cyclones Hazard mitigation a b s t r a c t This paper investigates potential space options for mitigating the impact of tropical cyclones on cities and civilians. Ground-based techniques combined with space-based remote sensing instrumentation are presented… (More)
A couple of experiments are here presented to clarify the impact of slow light on light-matter interaction. The experiments are designed, so that the process generating slow light and the probed light-matter interaction only present a marginal cross-effect. The impact of slow light on simple molecular absorption could be separately evaluated under either… (More)