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Wavelength-scale stationary-wave integrated Fourier-transform spectrometry

Abstract : Spectrometry is a general physical-analysis approach for investigating light-matter interactions. However, the complex designs of existing spectrometers render them resistant to simplification and miniaturization, both of which are vital for applications in micro- and nanotechnology and which are now undergoing intensive research. Stationary-wave integrated Fourier-transform spectrometry (SWIFTS)-an approach based on direct intensity detection of a standing wave resulting from either reflection (as in the principle of colour photography by Gabriel Lippmann) or counterpropagative interference phenomenon-is expected to be able to overcome this drawback. Here, we present a SWIFTS-based spectrometer relying on an original optical near-field detection method in which optical nanoprobes are used to sample directly the evanescent standing wave in the waveguide. Combined with integrated optics, we report a way of reducing the volume of the spectrometer to a few hundreds of cubic wavelengths. This is the first attempt, using SWIFTS, to produce a very small integrated one-dimensional spectrometer suitable for applications where microspectrometers are essential.
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Contributor : Etienne Le Coarer <>
Submitted on : Wednesday, August 1, 2007 - 1:51:01 PM
Last modification on : Wednesday, September 15, 2021 - 3:03:43 PM
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Etienne Le Coarer, Sylvain Blaize, Pierre Benech, Ilan Stefanon, Alain Morand, et al.. Wavelength-scale stationary-wave integrated Fourier-transform spectrometry. Nature Photonics, Nature Publishing Group, 2007, 1 (8), pp.473 - 478. ⟨10.1038/nphoton.2007.138⟩. ⟨hal-00166129⟩



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