Abstract

We have constructed tapered fiber-optic microsensors with a tip diameter of less than 10 µm to measure profiles of backscattered light in biofilms, which are thin layers of micro-organisms firmly attached to surfaces. The observed response agrees well with local effective diffusivity microelectrode measurements, with R ² > 0.85. A strong relation between signal intensity and wavelength has been observed at 670 and 1320 nm. These sensors have the potential to replace local effective diffusivity microelectrodes for true in situ biofilm measurements.

© 2000 Optical Society of America

U-shaped, double-tapered, fiber-optic sensor for effective biofilm growth monitoring

Nianbing Zhong, Mingfu Zhao, and Yishan Li
Biomed. Opt. Express 7(2) 335-351 (2016)

Measurement of biofilm growth and local hydrodynamics using optical coherence tomography

Nicolás Weiss, Khalid El Tayeb El Obied, Jeroen Kalkman, Rob G.H. Lammertink, and Ton G. van Leeuwen
Biomed. Opt. Express 7(9) 3508-3518 (2016)

Launched pulse-shape dependence of the power spectrum of the spontaneous Brillouin backscattered light in an optical fiber

Hiroshi Naruse and Mitsuhiro Tateda
Appl. Opt. 39(34) 6376-6384 (2000)

Depth-resolved two-dimensional Stokes vectors of backscattered light and Mueller matrices of biological tissue measured with optical coherence tomography

Shuliang Jiao, Gang Yao, and Lihong V. Wang
Appl. Opt. 39(34) 6318-6324 (2000)

Profile of a fiber from backscattering measurements

J. L. de la Peña, J. M. Saiz, and F. González
Opt. Lett. 25(23) 1699-1701 (2000)