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Istituto per il rilevamento elettromagnetico dell'ambiente

Torna all'elenco Contributi in atti di convegno anno 2014

Contributo in atti di convegno

Tipo: Contributo in atti di convegno

Titolo: Liquid jet waveguide for Raman spectroscopy

Anno di pubblicazione: 2014

Formato: Cartaceo

Autori: Persichetti, Gianluca; Testa, Genni; Bernini, Romeo

Affiliazioni autori: Natl Res Council CNR

Autori CNR:

  • ROMEO BERNINI
  • GIANLUCA PERSICHETTI
  • GENNI TESTA

Lingua: inglese

Abstract: An optofluidic jet waveguide for Raman spectroscopy is reported. In this device a micro-channel is used to produce a high speed liquid stream acting at the same time, as the solution to analyse and as an optical waveguide. The liquid waveguide, exploiting total internal reflection, is able to effectively collect the Raman signal produced by the chemical compound under analysis opportunely excited by means of a laser source. Using a self-aligned configuration, the liquid jet is directly coupled with a multimode optical fiber collecting the Raman signal towards the detection system. The waveguiding nature of a liquid jet enables high Raman signal collection and the device configuration allows strong reduction of the background as no confining walls are used to contain the solution to analyse. The performances of the system have been successfully tested on isopropyl alcohol in water solutions showing a detection limit for this chemical compound of 0.8 +/- 0.1%.

Pagine totali: 7

Rivista:

Proceedings of SPIE, the International Society for Optical Engineering SPIE, The International Society for Optical Engineering
Paese di pubblicazione:
Lingua: inglese
ISSN: 0277-786X

Numero volume: 8976

N. volume della serie/collana: 8976

DOI: 10.1117/12.2039930

Indicizzato da: ISI Web of Science (WOS) [000336033500028]

Parole chiave:

  • Liquid jet waveguide
  • water stream waveguide
  • Raman spectroscopy

Congresso nome: Photonic west 2014

Strutture CNR:

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