A Raman cell based on hollow optical fibers for breath analysis

Y. Okita, Takashi Katagiri, Yuji Matsuura

研究成果: Conference contribution

13 被引用数 (Scopus)

抄録

A compact Raman cell based on the hollow optical fiber for highly sensitive breath analysis is reported. A polycarbonate tube-based hollow optical fiber with inner coating of silver is used for both a gas cell and a Stokes collector. An excitation laser light at 532 nm is launched into the cell filled with analytes and the Stokes light collected in the cell is detected by the multichannel Raman spectrometer. A high-reflectivity mirror was placed at the output end of the cell for the effective excitation of trace gases. The Raman spectrum of major breath molecule (oxygen, carbon dioxide, and water) is obtained without a serious decrease of the signal-to-noise ratio even if the cell is coiled into a multiple loop with a 3.8 cm radius. Because the cell examined in this report needs very small volume of only 0.4 ml or less, it has great potential for gas analyses that need fast response such as in critical care and operating rooms.

本文言語English
ホスト出版物のタイトルOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications X
7559
DOI
出版ステータスPublished - 2010 5月 10
イベントOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications X - San Francisco, CA, United States
継続期間: 2010 1月 232010 1月 24

Other

OtherOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications X
国/地域United States
CitySan Francisco, CA
Period10/1/2310/1/24

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 電子材料、光学材料、および磁性材料
  • 生体材料
  • 放射線学、核医学およびイメージング

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