All-in-fibre Rayleigh-rejection filter for raman spectroscopy

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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An in-line Rayleigh-rejection filter for Raman spectroscopy is demonstrated. The device is based on a solid-core photonic crystal fibre infiltrated with a high-index liquid. At room temperature, the filter exhibits a full width at half maximum bandwidth of 143 nm and an insertion loss of 0.3 dB. A shift of 32 nm of the central wavelength is demonstrated by increasing the temperature from 22 to 70°C. FEM simulations of the spectra at different temperatures showed good agreement with experimental results. The device was successfully employed to perform Raman spectroscopy of a sample of cyclohexane and allowed for a fourfold attenuation of the Rayleigh scattered light.
Original languageEnglish
JournalElectronics Letters
Publication date2012
Volume48
Issue5
Pages275-276
ISSN0013-5194
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 1
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