Article abstract


Nature Photonics 1, 473 - 478 (2007)
Published online: 1 August 2007 | doi:10.1038/nphoton.2007.138

Subject Categories: Spectroscopy | Fundamental optical physics

Wavelength-scale stationary-wave integrated Fourier-transform spectrometry

Etienne le Coarer1, Sylvain Blaize2, Pierre Benech3, Ilan Stefanon2, Alain Morand3, Gilles Lérondel2, Grégory Leblond2, Pierre Kern1, Jean Marc Fedeli4 & Pascal Royer2


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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  1. Laboratoire d'Astrophysique de Grenoble, Université Joseph Fourier, CNRS, BP 53, F38041 Grenoble Cedex, France
  2. Laboratoire de Nanotechnologie et d'Instrumentation Optique, ICD, CNRS (FRE2848), Université Technologique de Troyes, BP 2060, 10010 Troyes, France
  3. Institut de Microélectronique d'Electromagnétisme et de Photonique, INPG-UJF-CNRS (UMR5130), BP 257, 38016 Grenoble Cedex, France
  4. CEA-LETI, Minatec 17 rue des Martyrs F38054 Grenoble Cedex, France

Correspondence to: Etienne le Coarer1Sylvain Blaize2 e-mail: Etienne.Le-Coarer@obs.ujf-grenoble.fr; e-mail: sylvain.blaize@utt.fr

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