Authors: Walker, D.S.¹; Reichert, W.M.¹; Berry, C.J.²

Source: Applied Spectroscopy, Volume 46, Issue 9, Pages 1327-1441 (September 1992) , pp. 1437-1441(5)

Publisher: Society for Applied Spectroscopy

Abstract:

The care and cleanliness with which optical fibers are drawn and cured produces nearly defect-free waveguides with propagation losses measured in decibels per kilometer (dB/km). The efficiency of light propagation, combined with the mechanical flexibility and ease of optical coupling, makes multimode optical fibers attractive for many remote spectroscopic and sensing applications. Ultraviolet (UV) grade quartz (a very pure form of silica) is used to produce UV transmitting fibers with minimal background fluorescence, making them an excellent choice for low-level detection. For example, Ciba Corning has reported a quartz fiber-optic immunosensor with a picomolar detection limit that is the lowest reported to date for an affinity-based optical sensor.

Keywords: Integrated optics; Fluorescence spectroscopy; Raman spectroscopy

Document Type: Short communication

DOI: http://dx.doi.org/10.1366/0003702924123818

Affiliations: 1: Department of Biomedical Engineering and Center for Biochemical Engineering, Duke University, Durham, North Carolina 27706 2: Microelectronics Center of North Carolina, Research Triangle Park, North Carolina 27709

Publication date: 1992-09-01

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