PROJECT DETAILS
| Name: |
|
Air-silica microstructure fibers for evanescent-wave chemical sensing |
| From: |
|
2005-01-01 |
|
| To: |
|
2007-12-31 |
The project is generally aimed at employing the potential of microstructure
fibers (MSFs) for sensing and at contributing to further development of MSFs
for this purpose. It will concentrate on the development of sensing MSFs
which detection properties will be modified by xerogel detection layers and
will have dimensions of air holes and their pitch optimized with respect to
particular sensing applications. MSFs with high evanescent-wave sensitivity
to changes of optical properties in their cladding, whose air holes can be
filled with gaseous and liquid detected chemicals at controllable flow rates
and pressures, will be developed. The project includes the investigation of
several novel approaches for sensing with MSFs, namely the employment of
absorption and fluorescence of optochemical transducers immobilized in
xerogel layers in the cladding of MSFs, the development of twin-core MSFs
for two-channel sensing and tests of possibilities of MSFs for the detection
in solutions. Sensing properties of the prepared microstructure fibers will
also be tested for the detection of gaseous toluene or benzene in mixtures
with nitrogen and of gaseous oxygen and ammonium vapours in air.
