Person

Isabelle Dicaire

This person is no longer with EPFL

Related publications (18)

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Gas Sensing using Material and Structural Slow Light Systems

Luc Thévenaz, Sang Hoon Chin, Isabelle Dicaire

Slowing light is expected to enhance light-matter interaction, leading to more compact sensing devices. By simple tests we show that the reality is more complex and the only relevant quantity is the wave electric field. ...

Optical Society of America2012

Probing molecular absorption under slow light propagation using a photonic crystal waveguide

Luc Thévenaz, Isabelle Dicaire

High-resolution infrared absorption spectroscopy of acetylene gas is demonstrated in dispersion-engineered photonic crystal waveguides under slow light propagation. Individual absorption profiles are obtained for both TE and TM polarizations for group indi ...

Society of Photo-Optical Instrumentation Engineers (SPIE)2012

Probing molecular absorption under slow-light propagation using a photonic crystal waveguide

Luc Thévenaz, Isabelle Dicaire

High-resolution infrared absorption spectroscopy of acetylene gas is demonstrated in a dispersion-engineered photonic crystal waveguide under slow-light propagation. Experimental enhancement factors of 0.31 and 1.00 are obtained for TE and TM polarization, ...

2012

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We experimentally demonstrate that structural slow light can enhance Beer-Lambert absorption. A 4-fold reduction of the group velocity induced by mere cavity effects has caused an increase of molecular absorption by 130%. ...

Optical Society of America2011

Analytical modeling of the gas-filling dynamics in photonic crystal fibers

Luc Thévenaz, Isabelle Dicaire

We present useful expressions predicting the filling time of gaseous species inside photonic crystal fibers. Based on the theory of diffusion, this gas-filling model can be applied to any given fiber geometry or length by calculating diffusion coefficients ...

Optical Society of America2010

Optimized conditions for gas light interaction in photonic crystal fibres

Luc Thévenaz, Isabelle Dicaire

This paper presents helpful expressions predicting the filling time of gaseous species inside photonic crystal fibres. Based on the theory of diffusion, our gas-filling model can be applied to any given fibre geometry or length by calculating diffusion coe ...

The International Society for Optical Engineering2010

Experimental verification of the effect of slow light on molecular absorption

Luc Thévenaz, Sang Hoon Chin, Isabelle Dicaire, Stella Foaleng Mafang

The absorption of light by a gas molecule has been measured comparatively using light propagating in normal conditions and in a slow light regime. The experiment is designed to make the 2 measurements possible without modifying the interaction conditions, ...

SPIE2009

We have thoroughly studied and modelled many important aspects for the realization of gas-light interactions in suspended-core fibres. The fraction of the optical field propagating in holes could be calculated from the fibre geometry to predict the total a ...

SPIE2009