Desmond Chow Ming Chia

Cette personne n’est plus à l’EPFL

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Publications associées (19)

Local activation of surface and hybrid acoustic waves in optical microwires

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Desmond Chow Ming Chia

Elastic vibrations in subwavelength structures have gained importance recently in fundamental light–matter studies and various optoacoustic applications. Existing techniques have revealed the presence of distinct acoustic resonances inside silica microwire ...

2018

Frequency-domain technique to measure the inertial response of forward stimulated Brillouin scattering for acoustic impedance sensing

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Desmond Chow Ming Chia

A frequency-domain method is proposed to measure the inertial response of forward stimulated Brillouin scattering, so that the acoustic impedance of a liquid medium outside an uncoated 30 m standard single-mode fibre can be sensed. The proposed technique o ...

SPIE2017

Towards a novel "silky" way to detect chemical species using spider threads

Luc Thévenaz, Kenny Hey Tow, Isabelle Dicaire, Desmond Chow Ming Chia

Silk possesses extraordinary properties that scientists are currently working hard on harnessing. Amongst them, this primeval material has shown early potential of having excellent optical properties. Through a regeneration process, it is possible to obtai ...

2016

Towards a new generation of fibre-optic chemical sensors based on spider silk threads

Luc Thévenaz, Kenny Hey Tow, Isabelle Dicaire, Desmond Chow Ming Chia

A spider uses up to seven different types of silk, all having specific functions, to build its web. For scientists, native silk - directly extracted from spiders - is a tough, biodegradable and biocompatible thread used mainly for tissue engineering and te ...

Ieee2016

From spider webs to a fibre-optic chemical sensor

Luc Thévenaz, Kenny Hey Tow, Isabelle Dicaire, Desmond Chow Ming Chia

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 prey on its web. For scientists, dragline silk - directly extracted from spiders - is a tough, biodegradable a ...

2016

Weaving our way towards a new generation of ﬁbre-optic chemical sensors based on spider silk

Luc Thévenaz, Kenny Hey Tow, Isabelle Dicaire, Desmond Chow Ming Chia

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 ...

Ieee2016

Shedding light on the optical properties of spider silk fiber

Luc Thévenaz, Kenny Hey Tow, Isabelle Dicaire, Desmond Chow Ming Chia

Optical characterisation of a Nephila 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 of 8×10−3 measured at 1302 nm. ...

IEEE2015

Mapping the Uniformity of Optical Microwires Using Phase-Correlation Brillouin Distributed Measurements

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Kenny Hey Tow, Desmond Chow Ming Chia, Andrey Denisov, Joël Cabrel Tchahame Nougnihi

The distributed Brillouin gain profile of an ultrathin optical microwire made of chalcogenide-glass is characterized using a phase-modulated correlation-domain measurement technique. Method resolves variations of uniformity below 5% along a 13 cm-long micr ...

OSA2015

Spider silk: a novel optical fibre for biochemical sensing

Luc Thévenaz, Kenny Hey Tow, Isabelle Dicaire, Desmond Chow Ming Chia

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 ...

SPIE2015

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Frequency-domain technique to measure the inertial response of forward stimulated Brillouin scattering for acoustic impedance sensing

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Desmond Chow Ming Chia

SPIE2017

Mapping the Uniformity of Optical Microwires Using Phase-Correlation Brillouin Distributed Measurements

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Kenny Hey Tow, Desmond Chow Ming Chia, Andrey Denisov, Joël Cabrel Tchahame Nougnihi

OSA2015