A hybrid Attenuated Total Reflection fiber optic probe device having a radiation source； a detecting system； a core-only solid optical fiber probe tip having an input end and an output end； an input hollow fiber waveguide configured for association with the radiation source at a first end and interconnection with the input end of the core-only solid optical fiber probe tip at a second end； an output hollow fiber waveguide configured for interconnection with the output end of the core-only solid optical fiber probe tip at a first end and association with the detection system at a second end； an inwardly tapered solid fiber input radiation collector element configured at a tapered end for interconnection with the second end of the output hollow fiber waveguide so as to receive radiation from the radiation source； wherein an outside diameter of the core-only solid optical fiber probe tip and an inside diameter of each one of the input hollow fiber waveguide and the output hollow fiber waveguide is such that the interconnection between each one of the input hollow fiber waveguide and the output hollow fiber waveguide and the core-only solid optical fiber probe tip is by means of inserting the input end of the core-only solid optical fiber probe tip into the second end of the input hollow fiber waveguide and inserting the output end of the core-only solid optical fiber probe tip into the first end of the output hollow fiber waveguide, such that the core-only solid optical fiber probe tip is held in the input and output hollow fiber waveguides by means of friction, and wherein an outside diameter of a portion of the inwardly tapered solid fiber input radiation collector element and an inside diameter of the second end of the output hollow fiber waveguide is such that the tapered end of the inwardly tapered solid fiber input radiation collector element is held in the end of the second end of the output hollow fiber waveguide by means of friction.
