Raman probe using a single hollow waveguide.
A simple Raman probe was realized using a single flexible hollow waveguide (HW). A HW coated with a silver film, which had reasonable transmission and little optical background noise, was used as a bidirectional transmission fiber for both the excitation and collection of Raman scattered light. The HW itself generated no Raman scattering or fluorescence noise during transmission. A complex filtering system at the end of the waveguide was thus unnecessary. In addition, the measured Raman spectra showed better signal-to-noise ratios than a conventional Raman fiber probe. The HW's suitability as a Raman fiber probe was also demonstrated.
Komachi
Yuichi
Y
Probing Technology Laboratory, RIKEN, The Institute of Physical and Chemical Research, Hirosawa, Wako-shi 351-0198, Japan. komachi@riken.jp
Sato
Hidetoshi
H
Matsuura
Yuji
Y
Miyagi
Mitsuno
M
Tashiro
Hideo
H
D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013059:Spectrum Analysis, Raman / Q000295:instrumentation* / Q000379:methods; D014159:Transducers