Photothermal synergistic TPP hydrogen detection system integrated at the tip of an optical fiber (IMAGE)

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Photothermal synergistic TPP hydrogen detection system integrated at the tip of an optical fiber

Caption

Figure 1. Photothermal synergistic TPP hydrogen detection system integrated at the tip of an optical fiber. (a) A 3D schematic of the fiber-optic TPP tip illuminated simultaneously by a halogen light source (blue beam) and a laser (red beam). (b) Cross-sectional view and SEM image of the fiber-optic TPP tip. (c) Schematic of the working principle of the photothermal synergistic TPP hydrogen sensing tip, along with the response/recovery characteristics of the resonance wavelength under photothermal (red curve) and non-photothermal (black curve) conditions.

 

Credit

Xinran Wei, Yuzhang Liang, Ting Xu

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